power surging Help!!!!

I have a 2005 oil injected 49cc scooter I bought on the net and it smokes heavily on start up and is fine until around 23 mph., then the power surges up and down... over 25 it is fine... any ideas......... thank you..

Re: power surging Help!!!!

I have a similar problem with surging on my 49cc oil injected moped. Did you solve problem or get any good advice?

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