Need to re-jet after installing Toomey 2:1 filter kit?

[bonzai272]

I already have dealer installed Toomey TR6 pipes with the air box modded with the Toomey included box vents and filter. Its already jetted for that. Will I need to change jetting if I switch out to the Toomey 2 into 1 filter or just bolt on and go?

[BellicoseBanshee]

Most likely you will need to go up 1 or 2 sizes on the main jets, for the 2:1 filter should let a larger volume of air into the engine than the modified airbox.

 

Install the 2:1 filter and check the plugs. That is the best way to determine jetting requirements...

 

Plug Chop :thumbsup:

 

I am not sure how the stingers route through the frame with the TR6 pipes, but with T5 pipes, the filter sits close to the left stinger. If the filter is close to the left TR6 stinger, use a strand of safety wire around the middle of the filter to keep the outwear away from the left stinger.

[theshee]

I think you will have a minor jetting change. Anytime you alter the air fuel mixture you will need to adjust your jetting.

[bonzai272]

Most likely you will need to go up 1 or 2 sizes on the main jets, for the 2:1 filter should let a larger volume of air into the engine than the modified airbox.

 

Install the 2:1 filter and check the plugs. That is the best way to determine jetting requirements...

 

Plug Chop :thumbsup:

 

I am not sure how the stingers route through the frame with the TR6 pipes, but with T5 pipes, the filter sits close to the left stinger. If the filter is close to the left TR6 stinger, use a strand of safety wire around the middle of the filter to keep the outwear away from the left stinger.

 

awesome advice, thank you so much. and thanks to the other guy too!

[gumby6t9]

I had to up my pilots to 27.5 and up my mains one size.

[lincster]

I run T5s, 2:1 and Boysen reeds. I run 370 mains and 30 pilots and my quad runs great.

Increase jet size then going to the 2:1 air filter.