What jet size

Cory2000

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Sep 26, 2019
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was wondering what jet size I should run in my blaster with an fmf exaust, everything else is all stock just wanna run it safe so it doesn’t blow up, is it ok to run on stock jet size for a little bit or not?
 
Not safe on stock jets. IIRC website calls for a 270 @70*f, @sea level. Get Genuine Mikuni jets 270 280 290 300
That should do you for hot summer to ice riding. You MUST increase jet size for colder weather. One size for every 20* colder from 70*
Search how to plug chop, only way to be sure of jetting.
If you’re higher elevation you decrease jet the higher you go. About one size for every 1500-2000 ft
 
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Not safe on stock jets. IIRC website calls for a 270 @70*f, @sea level. Get Genuine Mikuni jets 270 280 290 300
That should do you for hot summer to ice riding. You MUST increase jet size for colder weather. One size for every 20* colder from 70*
Search how to plug chop, only way to be sure of jetting.
If you’re higher elevation you decrease jet the higher you go. About one size for every 1500-2000 ft
Ok thanks man really appreciate the help