What does the Jet needle do in a carb?
Within the needle jet the needle moves up and down to vary the orifice size to meter the fuel. The tapered shape of the needle controls the amount of fuel coming up through the main jet and through the needle jet. As it goes up, the opening gets larger, letting more fuel into the mix.
How big is a Sportster carburetor jet engine?
Sportster Carburetor Jet Sizes. KEIHIN CARBURETOR MAIN JET SIZES 1988 TO 2006. Year 1988 Engine 883 – Jet Size 170 (California 165) Year 1988 Engine 1200 – Jet Size 200 (California 180)
What kind of needle does a Harley Davidson stock carb use?
Get your stock carb right l. Buy and install a stock jet needle for a 1988 or ’89 1200 Sportster (H-D Part No. 27094-88). This needle was developed for the early Sportster Keihin CV carb that was not equipped with an accelerator pump. As such, it is richer in the off-idle to ¼-throttle range and works just right.
Do you need a jet needle for a Keihin CV carb?
Buy and install a stock jet needle for a 1988 or ’89 1200 Sportster (H-D Part No. 27094-88). This needle was developed for the early Sportster Keihin CV carb that was not equipped with an accelerator pump. As such, it is richer in the off-idle to ¼-throttle range and works just right. 2.
What kind of CARB does a Harley Davidson jetting use?
However – and this is important – at idle and above ¼-throttle the jetting is pretty good. Harley’s Keihin CV (constant velocity) carburetor is based on the basic Amal slide carb design from the early post-World War I era. And therefore, it shares similar parts which perform similar functions.
Sportster Carburetor Jet Sizes. KEIHIN CARBURETOR MAIN JET SIZES 1988 TO 2006. Year 1988 Engine 883 – Jet Size 170 (California 165) Year 1988 Engine 1200 – Jet Size 200 (California 180)
Get your stock carb right l. Buy and install a stock jet needle for a 1988 or ’89 1200 Sportster (H-D Part No. 27094-88). This needle was developed for the early Sportster Keihin CV carb that was not equipped with an accelerator pump. As such, it is richer in the off-idle to ¼-throttle range and works just right.
Buy and install a stock jet needle for a 1988 or ’89 1200 Sportster (H-D Part No. 27094-88). This needle was developed for the early Sportster Keihin CV carb that was not equipped with an accelerator pump. As such, it is richer in the off-idle to ¼-throttle range and works just right. 2.
However – and this is important – at idle and above ¼-throttle the jetting is pretty good. Harley’s Keihin CV (constant velocity) carburetor is based on the basic Amal slide carb design from the early post-World War I era. And therefore, it shares similar parts which perform similar functions.