Re: proformance mods for alpha sports kolt50
First make sure that there are no restrictors in the exhaust... one in the head pipe and one on the silencer.
On your CDI, there may be a wire that loops back into the CDI box... if it has that, it can be cut to open it up some. If it has a piece of metal with 2 screws on the CDI, remove the screws, remove the metal and then put the screws back it.. this does the same thing aa teh cut wire. If it has neither... then you are in the situation that we are... the stcok CDI rev limiter would not let it wind out... an aftermarket CDI will open it up.. in our case, 4-5 mph more.
We have also put a larger front sprocket (18T to a 19T) in front and a smaller rear (35T to 27T) to get about 20% more speed, but at a loss of power.
A pipe and open element air filter would be next.. that's our next move along with some mods to the transmission.