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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#1
09-06-2012, 09:19 PM
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Help! Gy6 157fm
Hey guys,
I am looking at getting a new engine for my go kart ( Jehm Powersports ATK-150R2 ) and I can't seem to be able to find the right engine ( complete ) anywhere!! The number says 157FM on the engine itself, and I know that it is a short case!! PLEASE someone help me out here!! I know that it is a 150cc GY6 engine, and it says 157FM on it ( no I am not stupid, It is that ) 
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#2
09-07-2012, 11:08 AM
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Bumpy
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#3
09-07-2012, 04:03 PM
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i seem to recall reading that the FM series engines are a bit of an oddball, but it's primarily internal dimension differences relating to the cylinder and head (bolt holes etc) . if you have your original engine, all you really need to do is match up a short case and output shaft length to what you have.
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#4
09-07-2012, 04:25 PM
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Any info on the ls157qmj
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#5
09-07-2012, 07:01 PM
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What could i use instead of it??
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