Motorized Bicycle Carburetor Adjustment

Motorized Bicycle Carburetor Adjustment - On the huasheng motor the idle mixture screw is a fuel adjustment, not an air adjustment. Simply adjust the screw for maximum idle, and then turn the screw approx 1/16. The best carburetor for motorized bicycle engines is the rontong sports carburetor. We examine this sophisticated carb with fitting instructions and tips to tune your motorized bike. The 26 mm carburetor is just the opposite on the idle mixture adjustment because it is fuel [not air], and turning the screw counter clockwise adds fuel [rich], and the normal. Especially on motorized bikes, the stock carburetors lack a lot of adjustments. Only having needle jet, main jet, and idle adjustments. This makes it easy to operate but does not allow. Remember the adjustment on the 22 mm carburetor controls air, not fuel, so turning it clockwise [just a tiny bit] makes the flow richer. The best place to start is to adjust the screw. After reading aussie steve's post about carb tuning i moved the needle adjustment to the leanest point, this helped but i am still running too rich, where do i go from here. There are also (usually) 2 adjustment screws on the exterior of the carburetor. The first (which is usually easier to access and larger in size) is the idle control screw. This screw is responsible. Reinstall the nt carburetor on the bicycle engine and take the bike for a test run.

On the huasheng motor the idle mixture screw is a fuel adjustment, not an air adjustment. Simply adjust the screw for maximum idle, and then turn the screw approx 1/16. The best carburetor for motorized bicycle engines is the rontong sports carburetor. We examine this sophisticated carb with fitting instructions and tips to tune your motorized bike. The 26 mm carburetor is just the opposite on the idle mixture adjustment because it is fuel [not air], and turning the screw counter clockwise adds fuel [rich], and the normal. Especially on motorized bikes, the stock carburetors lack a lot of adjustments. Only having needle jet, main jet, and idle adjustments. This makes it easy to operate but does not allow. Remember the adjustment on the 22 mm carburetor controls air, not fuel, so turning it clockwise [just a tiny bit] makes the flow richer. The best place to start is to adjust the screw.