Premix Ratio

[cr125rider]

what should i do about my YZ 125 dirtbike. we are runninh 40:1 but, we have fouled 2 plugs in a few days. any siggestions would help trumendously.

[flotek]

its not your mix, its your main jet .its a tad too big .go down one size and check the plug after its all warmed up and running strong ,dont pussy fart around the yard on it either or itll load up on you quick.

[swrbansheeboy]

if it used to run good with that mix and jetting then try cleaning your air filter, if you've cleaned it and it's still fouling out then try rejetting like eviltwin said...

[$evy]

lol like evil said 125s you can't just put around and dick the dog all day. You gotta get on the pipe and in the powerband, thats where they seem to run the best. My friends Husky ran best in 4th gear with a front tire in the air lol

[Greenrider250]

yeh you cant just put around. these bikes load up fast if your not on the gas