midospike Posted March 16, 2012 Report Share Posted March 16, 2012 i am looking at buying a 2001 Yamaha Banshee 10 mm stroker. it has about 15 hours on a fresh rebuild. Wiseco forged crank. it is only bored 20 over with a shaved stock head. banshee is still running stock carbs and reeds. I asked the person selling it why put a 10 mill in a basic stock banshee engine. He told me he was builting a sleeper. no port work... banshee is a one owner with title and guy is in his late 40's. what would you offer him? What power would you think it is running? thanks Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted March 17, 2012 Report Share Posted March 17, 2012 Can you see a spacer plate under cyl or head? If it were me I would measure the stroke. I trust no one. Do a compression test on it also, that will tell if it's 15 hrs old Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted March 17, 2012 Report Share Posted March 17, 2012 Gee, I see no mention of a 10 mil crank http://www.wiseco.com/Catalogs/Powersports/BottomEndATV.pdf Quote Link to comment Share on other sites More sharing options...
midospike Posted March 17, 2012 Author Report Share Posted March 17, 2012 Going out to look at it this weekend, but he has all paper work, the head was shaved and there is a thicker gsket on the base and head. If what he is saying is true.. whats it worth? What kinda power we talking? Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted March 17, 2012 Report Share Posted March 17, 2012 A thinner gasket on the base would LOWER the port timings even more than stock. If the motor doesn't have a spacer plate under the cylinder, then it's all BS and more than likely totally stock. I've known people to go look at bikes that were claimed to be totally built, and with nothing more than a 13 tooth front sprocket, it will feel like it rips on pavement. It wouldn't be hard to check the facts before you buy. Quote Link to comment Share on other sites More sharing options...
Nightmare Posted March 17, 2012 Report Share Posted March 17, 2012 be carefull man , i got burned on what was supposed to be a 10mil asnd it was only a 4 Quote Link to comment Share on other sites More sharing options...
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