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91, 90TLRP question

blmille1

New member
Good afternoon. I have an odd question... I recently pulled the power head on my 90hp yamaha 2 stroke. I have pulled out the bad pison and am waiting on the parts, but recently when I was cleaning cylinder wall, I noticed a small ball bearing on my workbench. I have NO clue where this goes, it looks like it may goe between the oil injection pump and the housing, but I am not certain..

I cannot find ANYTHING in the 2 manuals I have for the engine...

Any advice???? I did not pull the carbs or intake off, I broke the motor apart in the center, so I have not pulled the intake or carbs. I have only removed the head, piston 3 and the oil injection pump...

Thanks in advance.
 
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