Yamaha DT 125R 1994 project
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I know that the crankshaft bearing failed. But there could be something else like a bearing.
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@jonne123 Yes, but WHY did the crank bearing fail?
There is no point in rebuilding it if you don't understand why it failed.
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Yeah the previous owner said it had engine rebuild but im guessing he meant top end because the engine bolts were so stuck and the engine was so dirty. Going to buy wössner piston and connecting rod. Good main bearings and seal.
@jonne123
Wossner and forged pistons are good, but you need to get the clearance right to allow for expansion. I understand buying the best you can, but is it really necessary? If you’re rolling in ca$h ignore me!
Just don’t fall into the trap of thinking expensive is best... -
The cylinder is going to shop. And price isnt that bad and prox quality has sometimes up and downs. And i suppose they are better because they are made with strong material and theyre forged. The ktm guys here use wössner pistons. And i know that i need to let the engine warm really well and also idle after ride.
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The big end bearing you mean?
People probably overlook that as it's not something you can easily do at home as the crank needs balancing afterwards!
Pity. The Yamaha Con Rod kids don't come with the shaft either, so if you've nackered up the eye then you'd be looking at getting another crank.
Was it salvageable do you know?
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I will buy connecting rod kit had bring them to local machine shop. They will put it together and balance.
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