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I have a 3V 107 SDG (Lifan really) and it is ok after you put in a hi-performance cam and piston.....port the head and it should be better.....they are 1 down 3 up for the most part...some all up out there......trans are prone to false neutrals if they are not shimmed correctly and with a proper shift star......probably not an engine that you will not have to break into to m,ake sure that it was set-up correctly....can be a little screamer though and not many people have them.....but that also means not too many availabe hop-up parts





note the 3v 110cc are the same
 

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Discussion Starter #3
the piranha is a lifan unit thats 4 up. the one that came in the sdg was a jialing from what i read and yea the 1 down 3 up motos were prone to that but the one i am talking about is 4 up
 
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