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Born to do trackdays
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386 Posts
Discussion Starter #1
Hi, I'm busy setting up a QBcarbon box.

At idle and initial throttle opening it is fine, but it goes very lean thru 1/4 and 1/2 throttle - until WTO, when it becomes better again.

To help me speed up the process and minimize the times I have to dismantle the whole installation everytime, is this just needle postion or does the float level affect the 1/4 to 1/2 throttle postion also ?

The floats are set at 10 mm and the needle in the middle (3rd).
 

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Born to do trackdays
Joined
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386 Posts
Discussion Starter #4
Thanks for the responses !

The needles are from the kit they supplied and there's a prominent Factory Pro sticker on the little plastic box.

I'll go one clip up on the needle and see.

Mixture screw - Right is rich and Left is lean ?
 

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Canadian Drinking Team
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1,771 Posts
Isn't there a number on the box?? Call the company.... they'll be able to help you. I know when I had trouble with my Dyno Jet jet kit, I called them and they were very helpful.... had the old girl running like a top. Good luck.
 
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