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Dirt Bike Mods & Maintenance
Miss-Matching Case Halves
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[QUOTE="mkandl53, post: 288337, member: 28843"] First off there is no warranty on KX motocross bikes. I am used to this... When the engine seized, I thought we stuck a piston, so I pulled the jug to see what was going on. If we stuck a piston, this is always going to be a customer problem and I can handle that. What I found was a seized lower end bearing and I immediately called the dealer. He indicated that he would try to get Kaw to get a new crank etc for me. But he indicated all labor was on me and has stuck to that. Then I call him about the miss-matched cases and he talked with Kaw and they insisted on the cases being split and sent to them for inspection... I really have NO leg to stand on because of the big no warranty sticker on the bike. But it sure would be a LOT better to get a new engine here... I have tried to push on the dealer adn he stands firm that this is the best shot with Kaw because if we piss them off, we give them a reason to not help. Anyway, I would not trust this dealer rebuilding my whole engine, I will make sure it IS right when it goes back together. As far as the Toyota analogy, there is a BIG difference. Toyota comes with a warranty. Race bikes do not. I have kept the dealer in the situation form the moment I found what happened. Everything I have done has been performed with the dealer instructing me to do so. Lastly, the case match is NOT unrelated. With .0025" of mismatch, it looks like the primary cause, by binding up the lower end bearing. Back to the main question now... The main bearings on the old crank were tight on the crank and tight in the cases. Is there not supposed to be some axial clearance/movement in the crank? On my race kart engines, it seemed like there was somethign like .010" axial play, so I am wondering why I do not see that here? And if I use a machined spacer between the flywheels, while I am pressing the crank into the case/bearing, it seems like there should be no possibility of miss-aligning the crank. Correct? Anyway, I am in this situation... now to make the best of it. Thanks for the help. mkandl53 [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Miss-Matching Case Halves
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