Carbs

OEM blaster carb is really about the most simple to tune and keep tuned on a non highly modded setup, that small of an overbore and only a fmf with no other mods should net you a very simple jetting setup, I'd get a stock carb, tors delete, add idle screw, start with stock 32.5 pilot, 290 main, needle in middle clip, set the float correctly and plug chop to confirm jetting, would also recommend getting jet sizes from 240-320 minimum to allow for changes and other mods in the future, hope this helps!, also , plenty of good info on stock carbs on here - searching helps

Christophe S said:

I did the tors delete will that make it easier to blow a top end my son I a 14 and im 16 at heart we like7 to give it hell sometimes

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Tors delete won't harm anything.
Incorrect jetting/ air leaks will fry a topend.

Now if you hold the throttle wide open for a extended period of time yes you can fry something, but removing or disabling the tors will not cause it to blow up

Christophe S said:

What aftermarket carb should I use just did the tors removal it has 40 bore over fmf pipe 14t sprocket, it's a flat track set up with 18.5 tires thats why inused a 14t sprocket.....oh yea and learned quick nibbi carbs are not recommended for blasters

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I don’t recommend changing anything keep the oem if I did any carb swap it would be a real pwk28