i got a carb question about my blaster

lowlow28

New Member
Sep 12, 2010
7
0
0
first off it has been bored .080 over with the tors removed,oil injection removed,foam filter with no lid,stock exhaust(planning on changing that soon)and planning on doing the +4 timing advance.i just got this blaster a week ago and it did not run but the top end was rebuild with about 10 hrs on it is what i was told and he did not have a key so i romoved the tors wireing and it fired the first kick.it took it out and played on a local dirt track for about 2 hours well about an hour into it we stopped for a min and when i went to start it again it would not fire up,so i was looking at the carb and there was fuel leaking from the carb-to-inlet tube.i was thinking the floats were stuck of something like that but we pull started it and it is running great just leaking fuel.so my question is if i were to just replace the whole carb with a larger size like a 30mm how would that do on there and what size jets would work good?
 
a 30 mm is a great upgrade over stock, ive used one for awhile on my sons bike, and it had a 40 pilot and i think a 145 main if i remember right
 
I also forgot to mention it will not idle and don't need to choke it when I start it and the mixture screw is all the way clockwise and if I turn it out it starts to die.yea I might just get a 30mm and see how that goes.
 
so would a larger carb just make it breath better and then i can set my fuel to what it needs with the jets?
 
Exactly. A larger carb flows more air AND fuel. = more power. The stock Blaster is seriously detuned for "safety". Even without a bunch of mods, a stock blaster benefits from a slightly larger carb.

BTW it looks like your original carb prob is either a stuck float, leaky float needle, or improper float setting. Chances are just cleaning it would do wonders.