I bought my bike with the motor already installed. I have no idea what motor is in it. It runs great but I was wondering how do you tell what motor you have? Also what is the best engine that is reasonably priced?
What motor do I have
- Thread starter mirman
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Whitewill1412
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Pictures?
What you have there is your generic 2 stroke. Only real way to know if it is a 49cc or 66cc engine would be to measure the piston/bore diameter.
It's "80cc" in Chinese displacement measuring. In Western math, the "80cc" calculates out to 66cc.
Chainlube
Well-Known Member
Yea, that looks like an Amazon special. If it was silver I'd guess GT5, but those don't come in black. The best way of telling is to pull the cylinder off and see what is written on the side of the rod, af80 ????
Looks like a fun ride. A couple of things to add to it's longevity, bin the junky plug for a NGK B6HS, get a new fuel line and filter (the filter is upside down and the line is going to be toast once you try to change), get a spring for the clutch. There's a few other things too, but they need some "splainin'.
GW's Motorized
Well-Known Member
Definitely dump the stock plug, and ditch the coaster brake(if you have one) for rim brakes, or even better, disc brakes
Street Ryderz
Well-Known Member
That's a 66cc with a g4 cylinder, there is no 49cc china girls only 48cc or 50cc depending on stroke, you can tell the smaller 48 or 50 by the case as they have different transfers and the cylinder is visually smaller than the 66-69 or larger bores.
