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  1. I have a 2001 Yamaha yz250f. The rod bearing blew and it’s seized. I purchased a new rod and bearing and was wondering if I were to press it into place on the crank will the crank have to be balanced. Or, if the crank is the same on both sides, lined up perfectly will it be OK and run fine? If the crank does need to be balanced does anyone know of someone that balances cranks that I can ship to? Nobody does it where I live in St. Louis Missouri.
  2. Hello I am looking for a set of cases for a 05 KX250 2 stroke. Part # is 14001-0021. From what I can tell cross referencing parts, 06-07 are practically identical to 05 and have all the same internals. the part # for 06-07 is 14001-0065. Anybody out there who might have some lying around collecting dust? Kawasaki discontinued manufacturing these apparently
  3. Hey all, I have been waiting for this day for quite a while. I am finally able to fix my bike, i've been in debt for some time but the day has come 🙂 Now i have a question, when I got my bike checked out at the shop, i was told i could rebuild my crank with any rod and bearings from 1986-2000. I am going to purchase an entire new hot rods crank instead. Am i able to order any crank from 1986-2000 for my bike? Mine is a 1987. I just want to make sure I am getting the correct part before I spend the money! Appreciate any replies or help. Thanks!!
  4. Can anyone see by the pictures if the chain or sprockets looks worn? To me it almost looks like the chain isn't sitting properly in the teeth of the sprocket. I had just done the timing and clearances and took the bike for a run at the track. Motor ran great, but I stalled it a few times and the first couple of times it was easy to start again, but then it got hard and felt like the decompression wasn't working. Took it home and took of the head cover and the timing had changed and the chain was way more loose than when I installed. Could it be I have one of those rare tensioners that actually backs off a little, or is it more likely my crank sprocket is worn? Seemed to be only the exhaust timing that was off tho.
  5. Hi guys, thinking of buying an 05-07 crankshaft for my 02 cr 125, and wondering whether they are interchangeable, i´ve seen that hotrods sells complete cranks and claim they are compatible from 90-07, so im assuming it will fit. Has anyone ever used these newer cranks in the older models? If so are there any benefits to using these cranks i´ve heard they are lighter and easier to service? Thank you in advance.
  6. Just rebuilt bottom end, top end, and all case bearings on a 2017 KTM 65 at 158 hrs. Engine would not start after rebuild. Good spark, compression, fuel... pulled hair out. Used a PRox crank, Vertex top end, Hot Rod bearings. Finally I have determined that the woodruff key slot on the rotor side of the crank is machined in the wrong position, making it impossible to properly time the engine. The only way I can align the timing marks on the stator and rotor using the nihilo deck height/timing tool is after TDC. Has anyone ever had this issue??? Plan to remove woodruff key and align rotor so I can properly time engine to verify. Any thoughts?
  7. Hey guys and gals, I ended up getting a knocking noise after a long run... About 10 minutes away from my house on the return route too :(. Anyways, I took the engine apart and the connecting rod has some play in it and not just side movement. I can get a video of it tomorrow BUT either way, I'm wondering the cost of the repair. When the connecting rod gets this, is it just the bearing that needs to be replaced or is it the whole crank? I really hope for my wallets sake it isn't the second one..
  8. Hey guys I got a quick question for you guys. Which way do you install the crank bearings or should I say is there a wrong way? can they go in either way? Thank you
  9. 09 ktm sx 85. Doing a bottom end for my first time. What tool can I use or tricks to get the primary pinion off? I have the bolt out already but every video I've seen they just pull the pinion right off the shaft with their hand...
  10. So tell me. How and why? It was an idle to midrange rev on the stand and on the decel it started this, didn't seize anything at all just flat out broke. 😢
  11. Wiseco's new Garage Buddy engine rebuild kits offer everything you need for a bottom and top end rebuild. From the crank to the piston kit, and even an hour meter to track maintenance, everything is included in one box. Here we take a look at the components included, and the technology behind them. So, the time has come for an engine rebuild. Hopefully it’s being done as a practice of proper maintenance, but for many it will be because of an engine failure. Whether the bottom end, top end, or both went out, the first step is to disassemble and inspect. After determining any damage done to engine cases or the cylinder, and arranging for those to be repaired/replaced, you’re faced with choosing what internal engine components to buy, where to get them, and how much the costs are going to add up. A full engine rebuild is a serious job and requires a lot of parts to be replaced, especially in four-strokes. You have to think of bottom end bearings and seals, a crankshaft assembly, piston, rings, clips, wristpin, and the plethora of gaskets required for reassembly. If you’re doing this rebuild yourself, or having your local shop do the labor, chances are you don’t have a factory team budget to spend on parts. However, you know you want high-quality and durable parts, because you don’t want to find yourself doing this again anytime soon. Rebuilding a dirt bike engine is an involved job, requiring many parts to be replaced. Missing one seal or gasket can put the whole rebuild on hold. You could source all the different parts you need from different vendors to find the best combination of quality and affordability. But, it can get frustrating when 6 different packages are coming from 6 different vendors at different times, and each one relies on the next for you to complete your rebuild. Wiseco is one of the manufacturers that has been offering top end kits (including piston, rings, clips, gaskets, and seals) all in one box, under one part number for many years. Complete bottom end rebuild kits are also available from Wiseco, with all necessary parts under one part number. So, it seemed like a no brainer to combine the top and bottom end kits, and throw in a couple extra goodies to make your complete engine rebuild in your garage as hassle free as possible. Top-end piston kits and bottom-end kits come together to create Wiseco Garage Buddy rebuild kits. Wiseco Garage Buddy kits are exactly as the name implies, the buddy you want to have in your garage that has everything ready to go for your engine rebuild. Garage Buddy engine rebuild kits come with all parts needed to rebuild the bottom and top end, plus an hour meter—with a Garage Buddy specific decal—to track critical maintenance intervals and identify your rebuild as a Garage Buddy rebuild. The kits include: Crankshaft assembly OEM quality main bearings All engine gaskets, seals, and O-rings Wiseco standard series forged piston kit (piston, ring(s), pin, clips) Small end bearing (for two-strokes) Cam chain (for four-strokes) Hour meter with mounting bracket and hour meter decal Open up a Garage Buddy kit, and you'll find all the components you need to rebuild your bottom and top end. 2-stroke and 4-stroke Whether your machine of choice is a 2-stroke or a 4-stroke, Wiseco can help you with your rebuild. 2-stroke Wiseco Garage Buddy kits include everything listed above, featuring a Wiseco forged Pro-Lite piston kit. You don’t even have to worry about sourcing a small-end bearing, that’s included too. 2-stroke fans often brag about the ability to rebuild their bikes so much cheaper than their 4-stroke counterparts, and they’ll have even more ammo for bragging now with these kits starting in the $400 range. A Wiseco 2-stroke Garage Buddy kit includes all the parts you'll need for piston and crankshaft replacement, plus an hour meter to track your next maintenance intervals. However, don’t abandon your 4-stroke yet. Many riders cringe—and rightfully so—at the thought of rebuilding their 4-stroke because of the costs associated, but Wiseco 4-stroke Garage Buddy kits starting in the $600s takes a lot of sting off your rebuild project. They even include a new timing chain. No matter what you’re rebuilding, you’ll be able to track key maintenance intervals for your fresh engine with the Wiseco hour meter and log book that’s included in the Garage Buddy kits. All Garage Buddy kits include a specific hour meter decal as well, which is important for the limited warranty to identify the rebuild as a Garage Buddy rebuild. A Wiseco 4-stroke Garage Buddy kit includes all the parts you'll need for piston and crankshaft replacement, including a cam chain and an hour meter. Ease of ordering Wiseco Garage Buddy kits come with the listed parts boxed up in one box, and listed under one part number, which makes it nice to not have to worry about if you might’ve missed something when ordering. Simply find the single part number for your model, order, and you’re on your way to brand new performance. Quality Performance, backed by a Limited Warranty Ordering convenience doesn’t make a difference if the parts do not provide quality and reliability. Wiseco crankshafts are designed completely by in-house engineers, who determine all assembled dimensions, clearances, materials, and specifications. These specifications have been determined from R&D tests such as hand inspection, dyno, and failure analysis. Once Wiseco cranks have been manufactured to exact specifications they are batch inspected, and critical tolerances and dimensions are measured. Major inspections and tests include crank run-out and trueness, because they must operate within a strict tolerance to last long and perform well. Wiseco crankshafts and bearings are manufactured and tested according to strict tolerances and clearances, including run-out and trueness. Crankshaft designs are also tested for 4 hours at WOT. Bearings are another critical point of inspection. Wiseco has worked to build relationships with top-tier bearing suppliers to provide a long lasting, low-friction product. Debris in a bearing can lead to very fast wear, and Wiseco makes it a point to inspect batches of bearings for cleanliness and proper operation. As part of the design and engineering process, prototype crankshafts are hand inspected and dyno-tested at wide open throttle for 4 consecutive hours. This is a benchmark test, and new crankshaft designs must pass it before to be deemed worthy for manufacturing. Watch our crank R&D and inspection process. A Warranty on Engine Internals? Yes! Wiseco is committed to providing performance and reliability in all their products. This is why Garage Buddy kits come with a limited warranty. Rebuild your engine with a Garage Buddy kit, and your new Wiseco components are covered against manufacturer defects for 90 days from the date of purchase, or 10 hours logged on the hour meter, whichever comes first. Check out all the warranty details on the detail sheet in your new Garage Buddy kit. Open up your Garage Buddy kit and you'll find a detail sheet on the warranty on your new components. Forged Pistons The top end kits included in Garage Buddy kits feature a Wiseco forged piston, which are designed, forged, and machined completely in-house in the U.S.A. Four-stroke Garage Buddy kits come with a Wiseco standard forged piston, which offers stock compression and more reliability and longevity, thanks to the benefits of the forging process. Two-stroke Garage Buddy kits include a Wiseco Pro-Lite forged piston, which is the two-stroke piston that has been providing two-stroke riders quality and reliability for decades. Some applications, two and four-stroke, even feature ArmorGlide skirt coating, reducing friction and wear for the life of the piston. Forged aluminum has an undeniable advantage in strength over cast pistons, thanks to the high tensile strength qualities of aluminum with aligned grain flow. Read more about our forging process here, and get all the details on our coatings here. All Wiseco pistons are forged in-house from aluminum. Some pistons may also come with ArmorGlide skirt coating, and some 2-stroke pistons may already have exhaust bridge lubrication holes pre-drilled. All pistons are machined on state-of-the-art CNC machine equipment, then hand finished and inspected for quality. The forged pistons come complete with wrist pin, clips, and high-performance ring(s). Lastly, all gaskets and seals are made by OEM quality manufactures. Sealing components are not something to ever go cheap on, because no matter how high-quality your moving components are, if your engine is not sealing properly, it’s coming back apart. Need some tips on breaking in your fresh engine? Check this out. Gaskets and seals provided in Wiseco Garage Buddy kits are OEM quality, ensuring your freshly rebuilt engine is properly sealed.
  12. 60 hours back i did put new koyo bearings for crank,after some trans problem while im here i want to replace crank seals so i had to heat case and hammer down bearings.Should i replace them now?
  13. Hey guys and gals, I ended up getting a knocking noise after a long run... About 10 minutes away from my house on the return route too :(. Anyways, I took the engine apart and the connecting rod has some play in it and not just side movement. I can get a video of it tomorrow BUT either way, I'm wondering the cost of the repair. When the connecting rod gets this, is it just the bearing that needs to be replaced or is it the whole crank? I really hope for my wallets sake it isn't the second one..
  14. Hey everyone, forever having issues on this 2001 yz125 still. 2 sets of new crank seals and were still having bad seal issues, first set was cometic and the second was OEM. The ignition side seal has a very visible gap between the crank and the sealing surface which is letting fuel into the ignition side cover and causing the bike to run very poorly. My first question is, do the crank seals seat against the crank or the bearing? we pushed it in to the manual specs but im wondering if its supposed to be all the way against the bearing? I was also wondering if anyone with a 2001-2004 bike could tell me or possibly measure their own crank to see what the diameter of the shaft is where the left side seal sits? this measurement is not in the manual and i would like to compare it with whats in the bike My worry is that the previous owner dropped in a crank from the wrong year
  15. Have a 1985 Cr80. Needs a full rebuild. Any ideas what matches up? Having a hard time finding a crankshaft...
  16. Okay. So I bought this 87 xr600r with a snapped connecting rod and broken pieces off the cylinder for $200. So I bought a new cylinder and crankshaft. I took apart the casings and replaced the crankshaft. But the new crank seems to have a longer flywheel mounting shaft and caused it to stick out about a 1/4 inch and will not allow case cover to fit flush, instead a 1/4 inch gap. How could I go about this without having to get a new crank and re-replace it.
  17. HELP PLEASE!!! I just replaced the crank and main bearings on a 2010 KX250F with a Hot Rods crank and bearings kit. All went well during the rebuild thus far. When I attempt to torque (87inlb) the case bolts the crank starts to tighten up and gets worse at the case gap closes tighter. The bearings are seated all of the way. I've pulled the bearings and re-installed them to make sure that they were seated correctly. Upon inspection i noticed that the Hot Rods crank is wider than the OEM crank by roughly 1 mm. Total length is the same but the actual crank body is a little wider. I can see a very small gap between both sides of the crank and left / right case halves. However, the gap is a little bigger on the right side. The crank does not appear to be rubbing on the case though. See picture below. I can't find what the spec for this gap measurement is in the manual. My guess is that the crank being 1 mm wider than the stock is putting the bearings in a bind when I try to torque the 8mm case bolts. Any help would be appreciated. Not sure where to go from here and could use some advice.
  18. Everytime I start my XT125X it revs into space and I have checked for air leaks and replaced the boot that goes from the carb to the engine. I went to go check for an air leak on the left crank seal and there was a pool of oil in the stator cover, is that normal or it it the seal allowing oil into the cover? When I stand the bike up oil trickles out but I’m not sure if that’s the left over oil at the back of the stator cover. Please help!!!!
  19. Purchase any Wiseco Powersports product(s) with a subtotal of $250 or more between March 21st 2018 and May 31st 2018, and receive a ProX air filter FREE by mail-in rebate! Just follow the redemption process outlined below. A Race-Quality, Dual-Stage Air Filter for Free! ProX air filters feature dual-stage bonded foam, to capture dirt and debris, from coarse to fine. The thick, flat sealing ring provides a proper seat on the air box, to keep everything but air out. ProX air filters optimize air flow and protection in one package. How to Redeem Your Free ProX Air Filter: Purchase Wiseco Powersports product subtotaling $250 or more between March 21st 2018 and May 31st 2018. Download the rebate form here. Complete the form and include a copy of your receipt showing the seller's name/company and selling price(s), and the product serial number(s). Cut out the barcode label(s) on the side of the box with the Wiseco part number(s) and mail in with your redemption form. Mail completed form and copy of receipt to: Wiseco Performance Products Attn: ProX Air Filter Rebate 7201 Industrial Park Blvd. Mentor, Ohio 44060 You will receive your free air filter in 4-6 weeks. Go here for complete details and terms and conditions. ProX air filters feature dual-stage bonded foam and thick sealing rings, creating a reliable combination of protection and performance. Learn about proper air filter maintenance and performance here.
  20. 2009 ktm sx 85. This is my first complete rebuild from the bottom end up so I will likely have many questions down the road but I'd like to keep them all in one thread. Im not a mechanic so Im not great on noticing certain defects when it comes to engines. The piston had some bad scarring and the head as well so I've got the cases split and cleaned. There were shavings and a couple sizeable chunks of metal inside before cleaning them out. My first question for now is in the attached picture, at the base of the cylinder/top of my case, is this a gouge of some sort caused by the engine problems or the result of a bad mold when coming from the production line? And if so, can it be used still or is this an issue?
  21. Blew top and bottom end last week and my cylinder, piston , crank , head are all destroyed, not sure about anything else yet . I wanted to know if anyone knew where to get a brand new oem cylinder, everywhere has shown that they were out of stock or not able to be added to my cart. If anyone knows where I can get a new oem cylinder please let me know where and a price if possible , thank you
  22. My crank bearing seized and I split my engine and a gear a washer and what seemed to be a sleeve over a shaft came out and I cant tell if the gear is just floating there or what order the 3 parts go together in.
  23. Ok so I have a yfz 450 that had a piece on the left side crank case that broke off (my fault) when splitting the cases. I got it welded and it doesn't leak oil anywhere but where it broke is on the semi circle shape that goes around the crank and now that piece isnt flush with the right side crank case. The bike runs fine? And doesn't leak from said spot however I'm worried that maybe there would be an issue with oil sloshing back or any issues related. In the picture I circled the spot
  24. I ended up with a bad main bearing on this bike. Not catastrophic, just got noisy I stopped checking out out and there is main bearing play. I was going to part the thing out but I really like the bike. It has a 290cc kit in it, rekluse, woods suspension 20 hours on top end including rebuilt head. Think I'll just go ahead and drop crank kit in. Question are the Wiseco or Hot Rods bottom kits decent? Which do you favor? Do these cranks require additional balancing or truing?
  25. Hey guys new to the forum, but long time reader. I noticed a weird noise coming from my bike a few weeks ago, but haven’t noticed any performance lost when riding. Someone told me it sounded like the power valve clicking, others said it was the rod main bearing. Any input. This is on a 250 2004 rm. thanks. https://youtu.be/Zm8DW92Re24
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