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Found this picture on Ebay as I was looking through sled parts. I had an old 1973 GP 338 Yamaha that had a ton of miles and the pistons looked better than this. The seller claims this engine only has 400 miles on it [:0] What do you think - I smell BS [:D][;)] 400 miles and all that thick carbon build up?????


/snofan/../images/users/gmann/ab_1.jpeg
 

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honestly,its not a good pic,but the pistons look o.k. to me,the clean spots is the wash your looking for to dial in your jetting,if there wash no dark carbon,it would be running pig rich
 
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