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Posted

Hello, I need your help.

 

I bought a T6 toomey pipes with the 2:1 HFFS, instead of using the foam filter they sent with the kit I used the KN filter #RU0210. When I rode in Glamis I felt that I had to use more throttle when taking off from a dead stop. Does anyone have an idea on what might be happening???

 

stock motor

Toomey T6 pipes

main jet 280

KN Filter RU-0210 / one on each carb

Pilot jet is stock not sure what number yet

 

 

any help is appreciated

 

umberto/ california

Posted (edited)

This may very well get moved to the jetting & exhaust forum, but.... My opinion is that you are jetted too lean. I know Toomey sends the "Perfect Jet Kit" with 280's, but they send those jets with the kit that does not replace the airbox as well. I've never been there, but I believe Glamis is at or below sea level correct? When I intalled my T5's with the 2:1 from Toomey (using the UNI filter that came with the kit) I ran 320-330's depending on the temperature. A friend of mine with the same exact mods, at the time, was running the 280's that Toomey sent, and he had a significant loss in power. We rejetted it with 330's and it ran like a champ. :bolt: So, you probably want to jump your mains to somewhere around 320-340 depending on elevation/temp. Did you switch to the Dynojet needles at the same time also? If so you'll probably find the fourth or fifth clip position (from blunt end) to be very close. You may also need to bump the pilot one size to 27.5, but this can really go either way. Hope this helps, again I am running T5's, but jetting specs seem to be real close from what I've found. :cheers:

 

edit: Sorry forgot to mention that my jetting figures for my bike were at sea level, approx 60 degrees.

Edited by 2003LimitedBanshee
Posted

Definately running lean, I run the 280 mains and 30 pilots on the east coast at sea level on stock motor with k&n clamp ons and run fine, but people on the west coast run bigger jets to get correct jetting.

Posted
This may very well get moved to the jetting & exhaust forum, but.... My opinion is that you are jetted too lean.  I know Toomey sends the "Perfect Jet Kit" with 280's, but they send those jets with the kit that does not replace the airbox as well.  I've never been there, but I believe Glamis is at or below sea level correct?  When I intalled my T5's with the 2:1 from Toomey (using the UNI filter that came with the kit) I ran 320-330's depending on the temperature.  A friend of mine with the same exact mods, at the time, was running the 280's that Toomey sent, and he had a significant loss in power. We rejetted it with 330's and it ran like a champ.  :bolt:  So, you probably want to jump your mains to somewhere around 320-340 depending on elevation/temp. Did you switch to the Dynojet needles at the same time also? If so you'll probably find the fourth or fifth clip position (from blunt end) to be very close. You may also need to bump the pilot one size to 27.5, but this can really go either way. Hope this helps, again I am running T5's, but jetting specs seem to be real close from what I've found. :cheers:

 

edit: Sorry forgot to mention that my jetting figures for my bike were at sea level, approx 60 degrees.

455097[/snapback]

 

 

yah Glamis is exactly sea level i pullet out my mains and they were 280s at 500ft ran good

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