BansheeCrasher Posted September 21, 2004 Report Share Posted September 21, 2004 (edited) Hey, I bought some wiseco's off Ebay that were advertised as being .60 over. However, now that they showed up, they are the K142 kit and on Wiseco's web site it shows the following table: Kit Part # Bore Size Displ. K139 64.00 / STD 346cc K140 64.50 / 0.50 352cc K144 64.75 / 0.75 355cc K141 65.00 / 1.00 358cc K145 65.25 / 1.25 361cc K142 65.50 / 1.50 364cc K143 66.00 / 2.00 370cc K146 66.25 / 2.25 376cc K147 66.50 / 2.50 382cc It even looks as if no .60 over option is offered. Am I reading this incorrectly or did I get the wrong stuff? Here is the ebay ad: "You are bidding on a Wiesco piston kit K142 that fits all years YAMAHA BANSHEE...SIZE IS 65.50mm which is .060 over..." Thanks, Tom Edited September 21, 2004 by BansheeCrasher Quote Link to comment Share on other sites More sharing options...
boonman Posted September 21, 2004 Report Share Posted September 21, 2004 1mm is equal to .0394". So, .5mm is equal to roughly .0197" or so.... Call it .020" over... So, 1.5mm=.0591, or rounded up, is .060" over.... In other words, you are bidding on the right kit... Quote Link to comment Share on other sites More sharing options...
BB3 Posted September 21, 2004 Report Share Posted September 21, 2004 the k 142 is a .060 over i just took a set out of my bike that i burned up and they measure 66.5 mm so the set you got r .060 over plus you can look up the part number on the top of the piston or just measure it with digital calipers. the number on the top of mine is 513m06600. Quote Link to comment Share on other sites More sharing options...
BansheeCrasher Posted September 21, 2004 Author Report Share Posted September 21, 2004 great...thanks Tom Quote Link to comment Share on other sites More sharing options...
United Pot Smoker Posted September 21, 2004 Report Share Posted September 21, 2004 whats the numbers in the piston? ill tell you what they are for you. Quote Link to comment Share on other sites More sharing options...
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