Blaster with full fmf jet size?

[Connorfab]

Would I have to rejet If I took off te air box lid

 

[Blaaster]

yup, i'll think you will be fine...have you tweaked with the airscrew yet? you can take your airbox lid off which is the first thing i would do...fmf called for a 260 when i gave them a call....so if your running stock engine and just a exhaust with no air box lid u should be ready to go with a 260-270I:I

No power or speed will be gained by tweaking the air screw, it is used only to set idle.

If you intend to change anything in the breathing or jetting, you had better read up on how to do a plug chop, or memorise the phone number of your bank manager.

FMF pipe, no air box lid #280 or #290, start at #290 and work back, confirming with plug chops.

Every motor is different, depending on varing circumstances, temperature, elevation, oil/fuel ratio, float level,, air cleaner ect ect ect.

Plug chops are the only way to confirm correct jetting.

 

[Connorfab]

Yeah I'll do plug chop tmrw. Does anyone think I'll have to change jet size If I take air box lid off? Or just turn airscrew a turn in

 

[mjgnslngr]

Yeah I'll do plug chop tmrw. Does anyone think I'll have to change jet size If I take air box lid off? Or just turn airscrew a turn in

Just taking the airbox lid off is enough for a jet change. May only be a size or two up but more air=more fuel.

 

[Connorfab]

Alright thank you