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Sled Of The Month Judge
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2,841 Posts
Discussion Starter · #1 ·
I have a 1979 Yamaha Exciter that needs a rebuild. It has cast iron sleeves. I was wondering do you have to go oversize, or does it just need to be honed?
 

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Sled Of The Month Judge
Joined
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2,841 Posts
Discussion Starter · #3 ·
I melted the piston and was wondering if 7 large cooling fins broken off would cause it to overheat and melt? It is a fan-cooled engine. PTO side went. Still investigating.
 
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