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Post by floydcaywod2000 on Jul 24, 2018 17:56:24 GMT -5
I had my crankshaft brake on my 50cc scooter what could have caused. This to happen
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PirateLabs
Scoot Enthusiast
Posts: 296
Location: Bowling Green, KY
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Post by PirateLabs on Jul 24, 2018 18:14:50 GMT -5
Did you install a big bore kit? Were you revving the rpm's over 8,000 for extended periods? How many miles were on your scoot? Is the engine a 2T or 4T? (2 stroke or 4 stroke) What kind of scooter is it?  Bill |
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Post by humanshield on Jul 24, 2018 18:28:01 GMT -5
Yeah....what ^^^^^ said
Lotsa people run these little GY6 motors hard and fast....but they aren't made for it.
And how are you sure the crank broke?
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Post by ThaiGyro on Jul 25, 2018 7:07:58 GMT -5
Welcome! Like the above questions...a crank failure on a low rpm 50cc engine? Super uncommon, if not a first, ever. Bearing failures can happen...then crank damage from a bad bearing. Definitely need more information to help you! We run Gy6 engines at 12K plus, with upgraded bearings...no crank damage. |
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