I Bought ThE FMf Jet Kit. Its Been Bored Over And I WIll Soon Have A FUll Fmf Exhaust. My Question Is It Says To RuN A 220 Jet For Stage One. But Why Do That When The Stock Jet Is A 220. Should I Use A Bigger Jet That Came On The kit
Jetting question
- Thread starter Screaminblaster
- Start date
What size carb you have?
stock main jet is a 230
You should have 260/270 in there for stock carby
only buy genuine mikuni jets. fmf will be a different size than genuine and probably wont be good for you motor
stock main jet is a 230
You should have 260/270 in there for stock carby
only buy genuine mikuni jets. fmf will be a different size than genuine and probably wont be good for you motor
All jetting information you get on Bf is usually based on genuine Jets.
Kits often use jets that do not conform.
Kits often use jets that do not conform.
When fitting the FMF you may need to know the following
FMF only #260 main jet
Aftermarket filter + 1 or 2 sizes
Air box lid off + 2 sizes
Premix 32:1 +1 size
Any more breathing mods ++
Needle in middle slot.
Plug chop to confirm jetting.
Some info on stock main jetting.
Blasters supplied to cooler climates come with factory fitted #230 main.
Blasters supplied to warmer climates are factory fitted with a #220 main.
Elevation, temperature and humidity do have some bearing on optimum jetting, play it safe, check that you are jetted for your conditions.
FMF only #260 main jet
Aftermarket filter + 1 or 2 sizes
Air box lid off + 2 sizes
Premix 32:1 +1 size
Any more breathing mods ++
Needle in middle slot.
Plug chop to confirm jetting.
Some info on stock main jetting.
Blasters supplied to cooler climates come with factory fitted #230 main.
Blasters supplied to warmer climates are factory fitted with a #220 main.
Elevation, temperature and humidity do have some bearing on optimum jetting, play it safe, check that you are jetted for your conditions.
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