Yz125 Bad Crank Seal


The clutch is on the opposite side of the flywheel from the crankshaft - if enough fluid pools in the bell housing to ever REACH the clutch, you have more problems than just a crank seal. I will swap coils around as soon as I get time and see if the coil is possibly bad. specifications. Crankshaft Rebuilding Kit Cylinder Base Gasket Cylinder Head Cylinder Head Gasket Dna High Performance Air Filters Engine Oil Seals. It just might be possible that some of these leaky seals, might be due in part to all the "crap" that is trapped on the other side of them. 2 Stroke Replacing Crank Seals 97 Cr and if it goes out again in short order then the main bearing is badseals dont usually go bad on the crank unless somethig. It really is not that hard to remove the powerhea dn replace if you want to and IF the seal is actually damaged and leaking a bigger worry is that water can get past the seal and into the lower c/shaft bearing and eventuall the internals-that is more of a. K Guy's I suspect I have a crank seal leak on my 05 yz250. - An Exclusive NASCAR Performance© Product. We have the best prices on dirt bike, atv and motorcycle parts, apparel and accessories and offer excellent customer service. Bike is completely stock with the exception of a FmF Turbine core silencer. The cases were welded finally and it has a new clutch, new crank, new piston, new cylinder, powervalves, reeds, new 6th gear, shift forks and some roller cams in the lower end and it was all installed by a notable motor builder that me and friends have used several times with no problems. It sprayed almost all of it's oil all over inside the muffler-box. its a common mistake that i've noticed. Pro-X provides quality crank seals to keep you from over paying for expensive O. Common examples include strut seals, hydraulic pump seals, axle seals, power steering seals, and valve stem seals. Head gasket, Base gasket, exhaust pipe o-rings, clutch cover gasket, side case gasket, crankcase halves gasket (only if a gasket is used from the factory), reed valve gasket, water pump gasket (if required), hydraulic clutch gasket (if required) ignition cover gasket & various o-rings if required. YAMAHA YZ125 ProX crankshaft rebuild kits contain the highest quality parts for engine. How Bad is a Rear Main Seal Leak? Top reason for rear main seal leak. A: Yes this Wiseco Complete Crank Kit will fit your 1996 Honda CR125. - An Exclusive NASCAR Performance© Product. Price shown is for 2 (Part No: EBU6701A) $4. DNK if Yamaha had a bad run on seals or a Japanese crack head installed the seals, because 2 seals were bad the day I bought. Using this slide hammer seal removal method will save time and money from having to split the cases to drive the seal out from the interior side of the engine or transmission case. Shop AllBallsRacing. Sputtering at low RPMs but then clearing out in higher RPMs. Account 0 Checkout. Crankshaft Rebuilding Kit Cylinder Base Gasket Cylinder Head Cylinder Head Gasket Dna High Performance Air Filters Engine Oil Seals. They were supposed to have done the PCV system too as I had requested. carb its clean, new plug, running 32:1 stock jets. That is what went bad on my 2001 YZ125 when I had a leak. and it wouldnt throw any codes, or at. Things to do with carbs still on the sled: Pilot screws - remove, blast holes with air, run screws all the way to bottom gently, then back out 1. On its face there is a dot—a small indentation—that represents the exact place to cut the seal with a razor blade for installation. In 1986, GM changed the design and fabricated a one-piece rear main seal. Bearings are prelubed and packaged with waterproof grease. Remove the bad sensor and install a replacement, and don’t forget to use your OBDII scan tool to clear any lingering check engine lights. Re: Changing Clutch Side Crank Seal on 98 YZ125 in the last photo the crank seal is located behind the gear that can partially be seen to the upper right side of the hole of the clutch cover. Com General Discussion > Motorcycle News > Old News > Help! YZ125 Help. It wasn't running when I received it but I traced it down to bad compression. there is a remote possibilty that the seals were installed too far in, against the crank bearings. Free Shipping. Shop with the guys that ride!. Cometic Gasket, Inc. any help would be greatly recieved. Choose top quality brands Corteco, Genuine, Replacement, SKP. Also, items like leaking valve covers, power steering pumps and A/C compressor oil can cause the rubber to swell, shrink or crack. we even played with it and tried to see how little you had to turn it before it would start with that sensor actually plugged in, and it had to be turned about 25-30 degrees clockwise, or unplugged. Detonation cures. I really thought about bringing this back to the stealership earlier today, but I hate dealing with their shit, and high ass prices, but hey, know I know why they charge so much to work on themn, it's really. I have a yamaha yz 125 motocross bike, white smoke has appeared frm the exhaust, what can this be because of? sounds like the crank seal on way out. I have four or five of these MoPar crankshaft oil seal kits, part number 1064 942, that fit 1942-52 Chrysler and DeSoto 6 cyl. First of all i was going to search but it keeps telling me i dont have permission. When pistons get worn out, slight amount of exhaust gas and also a portion of compressed mixture of air and fuel starts passing out from between. Piston damage is not the only consequence of bad filtration. I have recently bought a second hand 2004 YZ125 It rockets along!!! when its working It seems every time I go for a ride the spark plug fouls with oil, now i run my bike on a 32,1 (Recommended) fuel oil premix ratio but there is way way to much smoke coming out of the exhaust!. 0L pushrod engine. A leaky seal on the other side will lean out the air fuel mixture causing pinging and loss of power. The hot rods and Wisco are crap. With updated OEM rod, pin, bearing and thrust washer kit. 131 Station Road. Testing 2 stroke crankshaft seals. I have bought new set but in the box are sprockets of different size: 13T & 44T !. The idle fluctuates up and down when warm and there is a lot of excess spooge coming out of the power valve vent line. Sputtering at low RPMs but then clearing out in higher RPMs. cleaned carb and tank replaced spark plug started right up blew smoke out from under the head. A faulty crankshaft inhibits the pistons from rotating properly while a damaged camshaft prevents correct opening and closing of the intake and exhaust valves- hindering your ability to drive altogether. When the piston move or reciprocate up and down this movement is transferred down to the crankshaft by the piston rod and crank. Check the ring end gap and replace those while in there. i didn't understand the door wiring either. Shop with the guys that ride!. If the oil leak is ignored or not noticed, an engine clatter noise may be noticeable and/or the engine pressure warning light may illuminate. Any tips would be appreciated. But, I did not get the tensioner replaced. Symptoms of a BAD Ignition Control Module or Crank Sensor. Diagnose Code P0336 (24X Reference Signal Circuit). There is no oil pressure to speak of on the front seal…There is usually a “slinger” on the nose of the crank to deflect oil away from the seal but that’s to minimize leaks not prevent “blow-outs”…The only thing that would blow out the seal would be massive crankcase pressure buildup. When I decided to replace the front seal was when it got so bad that it would spot the driveway while waiting for the garage door. I have replaced the crank seal on my own '02 X1 with no problems, but when I tried to repeat the operation on my step dad's '99 X1, I met FRUSTRATION The metal spacer you're supposed to be able to remove by hand is very very stuck (see below for example of which part). Crankshaft pulley remover tool; Power drill; Note: Our guide is a universal procedure for removing the crankshaft pulley, but since every engine is different, you might have to access your pulley differently depending on the layout of your vehicle's engine. Mercedes Front Crank and Transmission Seal Removal Tool. If your going to tear it down and replace the seals completely go thru the bottom end and check/replace the crank and all seals that require the cases to be split. e oil pump, crank pressure, crank wall, etc. The frustration comes. Assuming little Johnny did not pour oil in the crank when no one was looking, you must figure that there is a bad seal on the case halves. Use a little RTV sealant and safety wire and it'll hold 6psi nicely so you can check your crank seals. Pulled primary and noticed just a little black sludge on seal plate, pulled plate and this is what was there. A saw that wont idle down like it should. Its approx 12 thou out on the primary side. Crank Seal failure symptoms. i buy the best out there i've tried them all but i still have the same problem where they just stop working, i used to be able to replace it and last 2 days but now it wont last 2 minutes. Crank case pressure is not being vented back into the engine since its mostly coming from the crank seal,. There's a good thread or article on eric gorr's site about this. Alright folks, I’ve posted this over in TT without much luck, so here goes. WARNING: Yamaha YZ85 owners - it is recommended that you use only OEM rod kits, or if you convert to aftermarket kits, that you continue to use an aftermarket kit. 1989 - 1993 Dodge D250 1989 - 1993 Dodge D350 1989 - 1993 Dodge W250 1989 - 1993 Dodge W350 1994 - 2012 Dodge Ram 2500 1994 - 2012 Dodge Ram 3500. You can find an 18-year-old bike and when it's done, pass it off as a new one. The 2006 Dodge Caravan has 7 problems reported for oil leak. com FREE DELIVERY possible on eligible purchases. Free Shipping. Dennis Trollope Racing Spares. Genuine parts give 2004 Yamaha YZ125 YZ125S1 CRANKSHAFT & PISTON owners the ability to repair or restore a broken down or damaged machine back to the condition it first appeared in on the showroom floor. ↳ YZ125 PICTURES. The NASCAR Performance© logo and word mark are used under license by the National Association for Stock Car Auto Racing, Inc. When unmetered air is allowed in, it creates a lean air/fuel ratio. It can be hard to pinpoint the source, but if it is coming up from high on the engine, the pump is the likely source. The crankshaft position sensor (CKP sensor or CPS) is one of several sensors that keep your engine running smoothly. It can be expensive to repair, often $600 or more, because it typically. Of course, other issues such as a bad wheel alignment, unbalanced tires, and others could also be causes of uneven tire wear so don’t assume it’s the wheel bearings unless other symptoms match up. So before you stick a fork in your crank seal leaker, I would suggest at least checking the injection check valves, then flushing out the RV case with a good quality oil & see if anything changes. When I put the seal in flush with the case, there is a gap between the outside crank bearing and the seal. Mercedes Crankshaft Pulley / Harmonic Balancer DIY In this tutorial, we cover common harmonic balancer/crankshaft pulley problems and instructions on how to replace it. I have a 200k mile warranty. How to replace crank seals in1988 ez go with a 2 pg robin motor n if the seals r bad will it make noise inside engine Is a 1988 Suzuki Lt250 Quadrunner a 2 stroke? no it is a four stroke. Yamaha 1990 225etxd crankshaft sensor: 0: YAMAHA 2 STROKE 85HP,AE 688 1992 Crankshaft: 2: 89 Yamaha Pro 50-Crankshaft noise or not Crankshaft noise: 2: Crankshaft Yamaha 30hp outboard: 0: Yamaha crankshaft repair: 1: Yamaha 25hp 2stroke crankshaft Repair? 0: 15 HP Yamaha-Crankshaft bearing bad ??? 1: Yamaha 4Stroke 225 - Crankshaft replace VS. I have replaced the crank seal on my own '02 X1 with no problems, but when I tried to repeat the operation on my step dad's '99 X1, I met FRUSTRATION The metal spacer you're supposed to be able to remove by hand is very very stuck (see below for example of which part). 17 axys 800. Step 1: Pop your car's hood open and locate the crankshaft pulley. Shop DK Engine Parts for all of your GM Diesel engine parts. Owners familiar with 4-stroke motorcycle engines often find themselves at a loss diagnosing poorly running 2-stroke engines. 2 Stroke Replacing Crank Seals 97 Cr and if it goes out again in short order then the main bearing is badseals dont usually go bad on the crank unless somethig. I heard it is a tip, how to put the spacer which is behind the oil seal in the right position,if you don't know the exact position the problem will remain. My dipstick never pops out. It would be wise to check valve guides and seals as well if… How often do you need to change the pistons and rings if you DONT race on a ktm85cc? Most kids will out grow the bike long before. A slide hammer makes seal removal a simple job. It prevents oil from the #4 main bearing from overwhelming the crank pulley, keeping oil inside the engine case. YAMAHA YZ 125-01/4-SEAL, CRANKSHAFT SPYS - 644114. as is not gouging up the oil pump seal pocket here the guy has found the lands worn (groove) so bad it needs the overlay ring, seen here. After removing the PTO, I was able to spin this seal in the bore on the engine case. The major part of the crankshaft oil seals are manufactured by the OEM factories in Japan. Ford Crankshaft Oil Seal Packing, Pair - This Crankshaft Oil Seal Packing is the original rope style rear crank shaft seal. Its approx 12 thou out on the primary side. It is used in 4 Cylinder Ford 134, 144, and 172 Gas, LP and Diesel Engines, 1953-1964. *The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 3,600 rpm (net power) and at 2,500 rpm (max net torque). Re: what would be the symtoms of a bad crankshaft seal ring????? I have done everything but swap the engine wiring harness, right own to to ecu. In fact, I think my seals were leaking noticeable well before its 25th year. In 1986, GM changed the design and fabricated a one-piece rear main seal. When she starts that well, it seems to me it is unlikey them seals are poor. This wear is normal as the engine bearings wear and or the crankshaft flexes at high engine RPM. I do have an aftermarket/after thought vaccum pump installed that draws out the smoke/vapors very efficiently. I have a 96 1L 3cyl manual metro with 250,000 miles. Buried in your vehicle’s engine compartment is the rear main seal, which is designed to prevent oil leaks between the block and crankshaft. In general, when the health of engine is perfect, exhaust should be colourless or very slightly blue. A damaged upper bearing ring seal will cause oil to leak from the top of the crankcase while the engine is running. It turns out the front (PTO end) crankshaft seal is toast. bad valve seals will blow blue smoke on startup, bad piston rings -pull out the dipstick when the car is running. Helps to remove 616 and 617 Diesel Engine Front Crank Seals and automatic transmissions from 1965 to 1995. I would enquire as to whether you put in some super detergent oil and try something different. Another option would be leaking crank seals. Anyways, the mechanic thought that it was a possibility I have a bad crank seal. Check the ring end gap and replace those while in there. Jetting is all stock. WARNING: Yamaha YZ85 owners - it is recommended that you use only OEM rod kits, or if you convert to aftermarket kits, that you continue to use an aftermarket kit. Gaskets and oil seals should be replaced if worn or leaking, or whenever removed during servicing. If it's a big leak and it seems to be coming from the front (belt end) of the engine, the crankshaft front seal is the major culprit. Seal surface is not grooved!. Lots of time spent trying to get both sides to zero but the matchining process has not worked out as we planned. Well looked after clean bike which is ready to ride! Has a 150cc Athena kit fitted, h/d tubes fitted with nearly new tyres, full dep exhaust, hand gaurds, Dixon generator cover, new water pump seals fitted, brakes new with a wave disc up front!. It also helps maintain the crankcase seal, and while it is made from durable material able to withstand pressure, heat, and oil, this seal will wear out over time. Top And Bottom End Rebuild Kit Fits Yamaha Yz125 1998 1999 2000. Hi If the seals are the same type that's in an Lc or pv, they have an outer rib going around them which means a crankcase split, but I'm not familiar with your bike - a microfiche pic will help you determine that. If 1 or both crank seals are bad, would the engine take in the oil from the trans and burn it off? And also would it lean itself out at high speeds? and cause it to not take in the proper amount of fuel? 98' cr500. but I doubt that is it. The crankshaft position sensor measures the crankshaft position and speed. Things you'll need to change the crank seal which you most likely do not have or own: - air compressor set up. Threads look good. Your one stop shop for Cell Phone Holders, Hitches, Battery Accessories, Service Manuals Call us toll-free, 7 days a week! 1-888-444-9994 "Where the cart is just the start!". INJECTOR SEALS. Features: Pro-X crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan; All bearings and seals are made to exact OEM specifications, to ensure maximum quality and performance; Pro-X uses respected brands like Koyo, NTN, NOK and ARS to ensure quality. Clean off old seal residues; that can be done by moistening a rag or paper towel with a slow drying solvent, such as WD40 or even kerosene. Are these signs of a bad crank seal, and what are the usual signs. Genuine parts give 2004 Yamaha YZ125 YZ125S1 CRANKSHAFT & PISTON owners the ability to repair or restore a broken down or damaged machine back to the condition it first appeared in on the showroom floor. Seals included are Crank, Sprocket, Gear change rod, Kick-start and clutch arm seal. Account 0 Checkout. I finally figured it was a bad right crank seal. Replacement is simple, but some engine dismantling may be necessary to reach them. Well i finally got this other yz125 going the other day and its eating gear oil like crazy. of all the bikes i have owned i have never had a crank seal go on me. Dennis Trollope. Page 1 of 3 - Bad crank seal? 2003 800 - posted in REV Chassis - Performance and Trail Models: Hi all, was tearing down the Rev to do some maintenance and noticed that there was extremely a lot of crud everywhere especially around the clutches the back aluminum wall was covered in grease and belt dust I guess. Sale Our crank seals feature a sealing lip which is designed to reduce crank. Even the right crank seal can cause that on this bike. Crankshaft thrust faces are difficult to grind because they are done using the side of the grinding wheel. You pull off the clutch and a few more bolts. I just noticed a huge oil leak and i think it is the crankshaft seal. Can bad crankshaft seals be the issue. The poor guy on the other end of the phone is giving me every intimate detail about his modified engine in hopes that I'll be able to rattle out the exact cause of his most recent piston seizure. If the oil leaking from a camshaft seal finds its way to a hot exhaust manifold or pipe, it will burn up on contact and produce smoke or produce the odor of smoke. Clark had been looking for a cheap YZ125 project bike for one of his typical hyper builds for a while when he came across the one you see here. View search results for crank seal and get Free Shipping on Orders Over $99 at Summit Racing!. Flywheel side seal: The flywheel oil seal on an older model large frame bike is different to the P series equivalent. I have bought new set but in the box are sprockets of different size: 13T & 44T !. Yamaha YZ125 Engine Oil Seal Kit 1989-1992 Engine Oil Seal Kit To Fit The Yamaha YZ125 1989-1992. Friend of mine let me take a stab at fixing his brothers dirtbike. In an effort to help fellow bikers properly ID their bike I have provided the following information on VIN ( Vehicle Identification Number ) , Engine ID and part identification. Replacement is simple, but some engine dismantling may be necessary to reach them. replace bad bearing/crank shaft Crank seal went out at 90,000 miles. Thank you for signing up. Buy New All Balls Racing Crank Shaft Seal Kit 24-2015 For Yamaha YZ125 2001 2002 2003 2004 at Walmart. You can replace the seal easily. When I put the seal in flush with the case, there is a gap between the outside crank bearing and the seal. I have four or five of these MoPar crankshaft oil seal kits, part number 1064 942, that fit 1942-52 Chrysler and DeSoto 6 cyl. Once cut, the seal can be wrapped around the crank and a daub of silicone sealer placed in the joint. A transmission input shaft seal, yes. Hard starting is certainly a symptom of that and when badly worn, having difficulty getting the engine to rev up is another one. Whenever you race, you feel just like Tim Hart, standing on your foot-pegs, gripping the handlebars tightly, flying through the air, waiting to stick the landing. Over time the oil pan seal will. Order your parts online or pick them up in-store at your local Advance Auto Parts. Hi, if the seal is leaking it will run down the inside of the exhaust housing and you are very unliekly to see any oil on the lower cowls. Have heard the Kaw FCs had a lot of issues with crank seals. First of all i was going to search but it keeps telling me i dont have permission. im 15 and live in eastern kentucky and i mix at 32:1 with yamalube 2 cycle. It sprayed almost all of it's oil all over inside the muffler-box. Pro-X provides quality crank seals to keep you from over paying for expensive O. A crank sensor relays information to the vehicle's computer, referencing how fast the engine is running, but more importantly the position of the crankshaft and the cylinder. Here are my observations. Lots of time spent trying to get both sides to zero but the matchining process has not worked out as we planned. specifications. Buy a 2008 Acura MDX Crankshaft Seal at discount prices. - An Exclusive NASCAR Performance© Product. Bike is completely stock with the exception of a FmF Turbine core silencer. When you do all the other stuff mentioned above, change your tranny oil. Assuming little Johnny did not pour oil in the crank when no one was looking, you must figure that there is a bad seal on the case halves. Browse your favorite brands affordable prices free shipping on many items. i'm replacing the fork seals, how much oil, in ounces does each fork take and what weight - Answered by a verified Motorcycle Mechanic. Replacing 2-stroke engine Crankshaft Seals An often overlooked item on 2-stroke motorcycles is the crankshaft seal/s. One of the most common places for oil leaks on a 6. Or else I think I'll be leakdown testing it shortly. I do have an aftermarket/after thought vaccum pump installed that draws out the smoke/vapors very efficiently. You can find an 18-year-old bike and when it's done, pass it off as a new one. Not a rear crank seal, though. General Pump / Interpump Genuine OEM Part K03 Crankshaft Oil Seal Kit for CW47 Series, Emperor Series, T47 Series, TSF & TSP 66 Series. maybe it is loosing compression there. The oil seal kit contains all the seals to do a full engine rebuild. As far as main bearings we have a bearing service here in shreveport and if you have something like that where you are just pop out and go match them uo at the supply store. Why not just mount the crank in the grinder. I'm currently putting a 200TDi from a Disco into my Defender. Since the crankshaft seal can go bad over time, it is a good idea for you to know the symptoms before it completely fails. YourMechanic. Neoprene/split seal Made from a rubber-like material, this is a two-piece, lip-style seal that rides up against the crankshaft. Purchaser acknowledges that they have the expertise as to the intended use of this product, and therefore assumes all risk and liability resulting from use of the product, whether used singly or in combination with other products. bad valve seals will blow blue smoke on startup, bad piston rings -pull out the dipstick when the car is running. Hi, if the seal is leaking it will run down the inside of the exhaust housing and you are very unliekly to see any oil on the lower cowls. Sign-up not successful. see steam? pull off your cap and rotor and look into the distributer see burnt oil? put on a breather filter and see if there is TONS of oil steam coming out of it. 2 Stroke Replacing Crank Seals 97 Cr and if it goes out again in short order then the main bearing is badseals dont usually go bad on the crank unless somethig. I have over 60 hours of jetting changes wrenching on this bike and it was a bad right crank seal the whole time. When they go bad, it sucks air past the seals instead of through the carb. 131 Station Road. The only other place to check for leaks is the power valve actuator shaft seal. runs good on hard acceleration and WOT, no miss or stumble ,just at idle. What you are saying is a little contrdictary. Did you fail to use a liquid gasket when assembling the case halves? Dirt on a surface? Did you not put in new crank seals? If able, can you " burn out" Johnny's oil by riding all day? Does more oil get in. I have been told that the rope seal from a 302 V8 Ford is a better seal than the rope seal for the L134, and will fit, but I did not use it. the crankshaft web and pin was purchased new some time ago. Free Shipping. 17 axys 800. With fresh bearings and seals, and grease where it was needed, I threw all these parts on the frame to make a rolling chassis, temporarily. Any stray air coming into a cylinder will cause a super lean condition, and you know what happens then. This listing is for a used crank from a 2002 Yamaha YZ125. Usually, a bad or failing camshaft seal will produce a few symptoms that can notify the driver that a problem has occurred and needs to be serviced. - An Exclusive NASCAR Performance© Product. Now ive read through a few posts and in one im pretty sure Brent was saying you can just put a screw in the old seals and pull them through the new ones should be just as easy to install. ProX offer a wide range of crankshaft oil seals for the MX, ATV and PWC segment. 2L Ecotec engine, the leak was huge. • Testing via our in-house dyno facility and compared against the OE benchmark- wide open throttle for 4 hours. Well i finally got this other yz125 going the other day and its eating gear oil like crazy. Things I would look for: A small hole in the fuel pump diaphragm will leave it starved. Therefore, a seal designed for your engine is the only one you should use. If you have been experiencing stalling or no start conditions, a failed crankshaft position sensor is often the problem. Wait for better weather, take her for a good spin to warm her up and then continue. Assuming little Johnny did not pour oil in the crank when no one was looking, you must figure that there is a bad seal on the case halves. You may or may not have one. The major part of the crankshaft oil seals are manufactured by the OEM factories in Japan. Are Oil Stop Leak Products A Scam Or Do They Really Work? If you've looked around a bit already, or checked some of the Amazon reviews, I'm sure you can see the huge difference in feedback. Bottom End Gasket Kit w/Crank Seals. are low cost to replace and the cost of replacement is largely labor which you are already doing to get to the crank seals. It did have good compression on both cylinders. Also fits 2006, 2004, 2003 & 2002. I went to a shop and they say I have to split the block and change out the gear drive. This leads to premature bearing and seal failure. If the finish on the shaft is smooth enough, the rotation in which it is ground shouldn’t matter. The reason being that the clearances between the crank and it's two seal pieces are too great because of poor initial fit or wear making clearances so large that the crank grooves can't draw the oil inward. Checking the condition of a 2 stroke dirt bike's LH crank bearing and crank seal is something that should be done occasionally and this is true whether riding motocross, off-road disciplines or FMX. Free Shipping. When the mains go bad you will almost always have crank seal issues, and the bike will run lean. My ignition is a new PowerDynamo set up. com FREE DELIVERY possible on eligible purchases. For most vehicle's. A buddy of ours stopped by the other day with a problem. ?? also looking for pin that goes into end of accelerator cable does anyone have any pics of carb area and what it supposed to look like stock and gov turned up?? my gov is turned up and. Grinding marks left on the crankshaft face produce a visual swirl or sunburst pattern with scratches – sometimes crisscrossing – one another in a cross-hatch pattern similar to hone marks on a cylinder wall. Cometic Gasket, Inc. We offer National Winning Blueprinted Engines for Karting, Quarter Midget, Junior Sprints, Microds, Back Yard Racing, Ect! We also Offer a Full Selection of Stock and Aftermarket High Performance Parts for Briggs and Stratton, Clone, and Predator Applications. Replace the fork seal immediately or consult a qualified Yamaha technician. You can do what you were discussing, I have done it also, be aware that you need to put some sort of catch container under the crankshaft to collect the oil that runs out when the seal is removed. when the clutch side seal goes bad you will smoke hardcore out the clutch side pipe and loose fluid. Once cut, the seal can be wrapped around the crank and a daub of silicone sealer placed in the joint. Buy a 2008 Acura MDX Crankshaft Seal at discount prices. Hello everyone. Com General Discussion > Motorcycle News > Old News > Help! YZ125 Help. i say there is no seal between the crank and the. Head gasket, Base gasket, exhaust pipe o-rings, clutch cover gasket, side case gasket, crankcase halves gasket (only if a gasket is used from the factory), reed valve gasket, water pump gasket (if required), hydraulic clutch gasket (if required) ignition cover gasket & various o-rings if required. The crankshaft seal is the seal located on the front of the engine that seals the end of the crankshaft with the timing cover. I got a '01 yz125 and a few weeks ago it started running bad. Crank case pressure is not being vented back into the engine since its mostly coming from the crank seal,. "Most crankshaft grinders and polishing stands rotate the crankshaft toward the operator (clockwise if viewed from the left end of the machine, counterclockwise if viewed from the right end)," says Bagnall. Although bad valve seals and piston rings have similar symptoms, the time and costs of repairing them are quite different. Over tightening the hose clamp doesn't seal it. One way to check is take the chain cover off and expose the crank seal the best you can, and spray carb cleaner by the seal if it revs up, or stalls then it could be a bad seal. If everything you checked is ok as you say it is, then you better focus on the crankshaft seals. We manufacture dozens of different sizes in order to offer solutions for all makes and models of cars and motorcycles. I will swap coils around as soon as I get time and see if the coil is possibly bad. Disclaimer: This product is intended for closed-course racing only and the parts contained in this kit are not for aircraft use. Although bad valve seals and piston rings have similar symptoms, the time and costs of repairing them are quite different. Here is what I learned from the disassembly: the exhaust valves slide in a machined slot that has a bottom to it (see picts with valve removed). 0 Liter V6 Engine. fully accept that I should have done but as the crank did not look that bad, or the inside of the cases I thought I would give. This is one time when a bad oil pump may be good news, and replacing the pump and bearings may restore the oil pressure without removing the crankshaft. My first thing to check would. Shop AllBallsRacing. YAMAHA YZ 125-01/4-SEAL, CRANKSHAFT SPYS - 644114. Yamaha YZ125 Engine Oil Seal Kit 1989-1992 Engine Oil Seal Kit To Fit The Yamaha YZ125 1989-1992. ↳ YZ125 PICTURES. Servicing the crankshaft seal according to the recommended service interval can prevent the seal from failing in the first place, which can cause other problems. Browse your favorite brands affordable prices free shipping on many items. Has anyone done a crank seal on a gas JD 1020? I was hoping to do it without any specialized tools since I can't seem to find a place that rents the seal removal/installer tool. A common symptom of bad wheel bearings is when your tires have a loud grinding noise coming from them. Bike is completely stock with the exception of a FmF Turbine core silencer. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine parameters. increase crankcase pressure leading to a rear crankshaft seal oil leak. 93 yamaha yz-80 big wheel, excellent, fmf exhaust, runs strong, set up for adult rider, new tires, brake pads and wheel bearings ---$995. If it is, it could be the oil lines are shot, and the duckbill check valve is missing off one off the vents. Get the best deals on Motorcycle Engine Bearings for Yamaha YZ125 when you shop the largest online selection Pro X Crankshaft Bearing and Seal Kit YAMAHA YZ125. I just wanted to check what is the correct way to fit a 200TDi rear crank oil seal? The old one in the flywheel housing was an absolute git to remove. Are Oil Stop Leak Products A Scam Or Do They Really Work? If you've looked around a bit already, or checked some of the Amazon reviews, I'm sure you can see the huge difference in feedback. Compare 1999 Honda Civic Crankshaft Seal brands. RHS Crank bearing bolts 12Nm/9ft-lb (20Nm/14ft-lb after 2006) 2. I run 30 psi of boost daily, and i mean i beat on the car. Valve seals will not have anything to do with high crank case pressure. the idle almost died out! What does that mean? Also, how can i check. When I put the seal in flush with the case, there is a gap between the outside crank bearing and the seal. Clark had been looking for a cheap YZ125 project bike for one of his typical hyper builds for a while when he came across the one you see here.