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CAUTION Do not try to correct a malfunctioning carburetor by adjusting the idling speed. If the carburetor is not functioning properly, it should be repaired by a service center. Adjust idling speed only when the engine is warmed up or 10 minutes after operation. ADJUSTMENT OF REAR BRAkE 1. The front brake hand grip should have free operating movement of 5-7mm (.2-.3in) . 2. To make adjustment, turn rear adjusting nut clockwise to reduce and counterclockwise to increase the free operating moveme