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Discussion Starter · #1 ·
Hello everyone so i recently bought a yz 85 Supposudly, but after having a hard time finding a piston that fits, not being able to find the same piston measurements that was on the old piston, i wanted to look up the vin to make sure its actually a 85 and not a 80, However everywhere i look it says there is no such vin number? B04C-DO3113X is the vin.
 

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Don’t need it check the top of the piston if there’s a 010 it’s ten thou over 020 20 and so on most likely it’s already over size take it to a dirt bike shop they will be able to give you a wiseco replacement piston. Just get them to double check the transfer ports on the two piston to match.
 
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