what size jet do i need?

[UniRacing]

30 degrees
Stock blaster accept uni filter
lid is not removed
Stock 230 jet

 

[rideyamaha09]

The 230 should be fine. Check your plug and see how it looks. You could try a 240 or a richer needle position if you are worried you are running lean.

 

[Blaster200boy]

start at 250. plug chop. see how it runs. if not it shouldn't be over a 260....

 

[yb200]

start at 250. plug chop. see how it runs. if not it shouldn't be over a 260....

huh 230 sould be ok but to be safe throw a new plug in and ride for a bit and check it

 

[Blaster200boy]

opps i thought it said "airbox lid removed" sorry

230 or 240 should be fine. no more than that..

 

[UniRacing]

ok with the 240 it seems to run and idle great,pulled the plug and its a carboard color