2002 Rm 125 jet

[sexyspeer]

Hey,

I have order a fmf fatty, fmf website says to rejet to a 430 main, but that is smaller than the stock, i think stock is 460, what to do? does anyone now what i should jet to?

 

[helio lucas]

i would start with the stock and go down one step at time until the spark plug is ok...

 

[robwbright]

One step at a time unless it's REALLY rich - check the plug.

My local shop sells aftermarket main jets for $3.00 each. You can afford to buy a few at that price.

I'm down to a 420 and still too rich - but then again, my bike is 144 cc, not 124.

 

[sexyspeer]

WEll my bike shoots quite a bit of oil out the pipe, so ill try the 430, Ill get a few more plugs and jet to get them right.Thanks