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Yamaha MX & Off-Road Dirt Bikes
Yz250 push rod question
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[QUOTE="gator kdx, post: 728896, member: 36274"] I am almost 100% sure of the crack's origin. The chain was able to get between the crescent shaped chainguard and the case. Unfortunately, the push rod area is directly in front of the countershaft sprocket. I guess that at some point I was revving the engine in such a way that the chain was loose on the sprocket and able to 'rub' the case. The scuffing from the chain makes it extremely difficult to pinpoint the exact location of the crack (the scuffing area is small - about 1/3 inch - but hard to see clearly because of the angle. If I get a chance, I will try and post a picture of the area. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Yz250 push rod question
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