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Discussion Starter · #1 ·
On the pullstart side of the motor behind the shroud there is a head code. On the base of the head the code will be upside down.
1E44F is the code for 49cc

40 - 5 is the code for 43cc

Some motors wont have this on there, for those you will have to actually look at the inside of the head. See link: http://www.scooterparts4less.com/web_gas/49cc_cylinder.htm
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