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post #1 of (permalink) Old 04-10-2005 Thread Starter
tjferris
 
Join Date: Aug 2004
Posts: 45
How to tell what motor you really have 49cc-110cc 4 stroke.

On the block you will find a number cast mine is on the left side under the transmission. This is on the block generally you can find a casting on the head as well but sometimes they miss with that before they ship the bikes.......
if the casting says:
1p39fmb = 49cc
1p47fmf = 70cc
1p47fmf = 90cc
1p50fmg = 100cc
1p52fmh = 110cc
hope this helps
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