Blaster Carb Rebuild?

Josh_bodine

New Member
Oct 22, 2013
62
0
6
31
Indiana
Okay so I have a yamaha blaster that runs terrible. It DRINKS gas, I mix 32:1 but my exhaust has burnt oil on it after riding for a little bit, it's running really rich, it does NOT idle. So I'm going to rebuild the carb but what's the best jetting for the following things done to the blaster.
Bored .30 over
FMF FATTY, TURBINE CORE 2
OPEN AIR BOX
 
Forgot to mention, my first and second gear are SUPER slow. Whenever you get to 3rd gear,it opens up but 1st & 2nd gear should not be this slow (1-3mph)
 
Give it a good cleaning, and then start with a 290 main, and 32.5 pilot (assuming that this is a stock carb)
 
Ok and this thing floods if you don't turn the gas off if you stop for like 5 minutes.. Does it need a new needle and seat you think
 
It may, you'll need to reset the float level as well. the float being off could cause these symptoms on it's own.
 
Carb overflows are caused by,

Incorrect float level.

Needle not mating with seat because of wear, dirt or varnish.

The rubber O ring under the seat cracked or broken.

Leaky float with fuel inside.

Float supporting posts may be ridged, causing float to stick.

Float rubbing against bowl not allowing movement.

Float arm pinching on pivot bar.

If the float level is correct, does the fuel shut off fully when the float is gently lifted with a finger, with the fuel bowl off?

Float height is 20 to 21.5mm.