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Post by chicoscoot530 on Oct 5, 2017 11:52:59 GMT -5
So Richard recently purchased a 90 mL cylinder head piston gaskets rings etc. for my motor. Do I have to change the crankshaft to a stroker crank with the 90Cc cylinder? Thank you
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Post by moofus02 on Oct 5, 2017 12:24:56 GMT -5
If you are starting with the regular 50cc motor you will need to cut the cases for the crank and cylinder. The 90 motors run 50,52 or 54mm cylinders in 2 different heights and 42 to 45mm cranks
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Post by chicoscoot530 on Oct 7, 2017 22:30:19 GMT -5
The motor intended for this is a Kymco kfa6, it started as a 50 but has malossi 70 cc bbk now. When you say cut the cases do you mean that I have to or the left and right case to except the cylinder sleeve and cut to create space for the crank thanks for your reply
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Post by moofus02 on Oct 8, 2017 1:21:05 GMT -5
The motor intended for this is a Kymco kfa6, it started as a 50 but has malossi 70 cc bbk now. When you say cut the cases do you mean that I have to or the left and right case to except the cylinder sleeve and cut to create space for the crank thanks for your reply That's what I meant. I was thinking the Yamaha/minna cases. I don't know on those. Maybe the Honda guys can chime in on this |
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