Replacement 2-Cycle Equipment Carburetor Adjustment Guide
Anytime a carburetor is replaced, it might need some preliminary adjustments. New replacement carburetors are often shipped with the plastic limiter caps not permanently seated. Only after the final adjustments are made to the carburetor should the limiter caps be pushed down over the serrated part of the adjustment needle. After a new replacement carburetor in installed and before any adjustments are made, start and run the equipment until it is at its full operating temperature (around 4 or 5 minutes). If the equipment will not start, back out the idle screw slowly until you can see a gap between the lever and the screw. Then turn the screw back in slowly until it touches but does not move the lever. Now turn the screw in 1/2 to 3/4 turn more to move the lever (which will open the throttle valve slightly). Next remove the limiter caps by gently pulling up on them with needle nose pliers. Now close both adjustment needles very slowly clockwise, until each gently bears against its sea