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Any one know where i can find a piston and ring set other than factory Yamaha piston? Does any one make a after market one?

thanks
 

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Just search eBay for a 47mm Piston, with 13mm wrist pin. Piston length is approx 34-36mm If i remember right, I pitched our stock piston or I would measure for you, piston must be flat top at minimum or slightly dished or you will have valve clearance issues, another critical measurement is from wrist pin center to crown of piston, make sure it’s the same distance as oem or less or piston will also hit valves
 
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