11. FUEL SYSTEM STRYKER 125/150 PILOT SCREW ADJUSTMENT ADJUSTMENT The pilot screw is factory pre-set and no adjustment is n6cessary. During carburetor disassembly, note the number of turns of the pilot screw and use as a reference when reinstalling it. Place the motorcycle on its main stand on level ground for this operation. Pilot Screw A tachometer must be used when adjusting the engine speed. Turn the pilot screw clockwise until it seats lightly and back it out to the specification given. Standard Opening: 11/4 turns The carburetor must be adjusted when the engine is warm and the auto bystarter is closed. Do not force the pilot screw against its seat to prevent damage. Warm up the engine and adjust the throttle stop screw to obtain the specified idle speed. Throttle Stop Screw Idle Speed: 1600100rpm Turn the pilot screw in or out slowly to obtain the highest engine speed. Slightly accelerate several times to make sure that the idle speed is within the specified range. If the engine misses or runs erratic, repeat the above steps. 11-14