62Y3A11 4-2212345678I4. Push the throttle control lever 1 to thefully open position as shown.5. While pushing the carburetor throttlelever 2 against the carburetor stopper3, loosen, and then tighten the adjustingscrew 5.Adjusting the pilot screw1. Start the engine and warm it up for 5 min-utes to check the stability of the engine.Adjust the pilot screw if necessary.2. Attach the special service tool to high-tension cord #1 1.3. Turn the pilot screws 2 in direction auntil the engine idle speed hasdecreased to approximately 50 r/min,then in direction b 5/8 turn.4. Turn the throttle stop screw 3 in direc-tion c or d until the specified engineidle speed is obtained.NOTE:• To increase the idle speed, turn the throttlestop screw in direction c.• To decrease the idle speed, turn the throttlestop screw in direction d.5. After adjusting the idle speed, rev theengine a few times and let it idle for atleast 15 seconds to check the stability ofthe engine. Adjust the carburetor syn-chronization if necessary.Inductive self-powered tachometer:YU-08036-BDigital tachometer: 90890-06760S62Y43501Engine idle speed: 900 ± 50 r/minCarburetor
