Keihin
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Carburetor Tuning

Jet Needle Changes for  FCR Needles

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28-33mm

fcr1.gif (2774 bytes)

35-41mm

fcr2.gif (5476 bytes)

32-33mm

fcr3.gif (1282 bytes)

39-41mm Methanol
Methanol Needle Call for Information FBK 017-385

 

39-41mm FCR GSXR 750/1100 Gas

fcr4.gif (3463 bytes)

Contribution of Jet Needle

 

fcr5.gif (3806 bytes)  

Note:
Simply change the clip position, lowering or raising will allow you to make adjustments. A shorter needle will be richer and longer needle will be leaner. The mixture richens when the jet needle is raised and leans when lowered.

 

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