hey guys,i was just doing some reading about jetting....

my stepbrother who is 11 years old has a blaster,a few weeks ago he burned a hole in the piston.im assuming it was running way lean.i rebuilt the top end with a wiseco pro lite and all new gaskets.when he got the blaster it came with a toomey pipe and silencer,v-force reeds,and uni filter with open air box.the car had a 310 jet in it,when you stopped it took about a min-min and a half for the idle to go back to normal.i changed the jetting to a 330,it seems better but not just right.it still takes 30 sec-min for the idle to come down.


can someone please give me some advice.

thanks
charles

 

hey try to screw the idle screw in count how many turns in first then go all the way in and out one turn see if that helps

 

thanks,i havent thought about that.

its been a long time since ive done this,my 250r hasnt ran in about 6 years,so that should give you an idea.