|
|
|
4-5 4 Cleaning Carburetor (120 cc) 1. Place all metallic components in a wire basket and submerge in carburetor cleaner. 2. Soak for approximately 30 minutes; then rinse with fresh parts-cleaning solvent. 3. Wash all non-metallic components with soap and water. Rinse thoroughly. 4. Dry all components with compressed air only making sure all holes, orifices, and channels are unobstructed. 5. Blow compressed air through all hoses to remove any obstructions. Inspecting Carburetor (120 cc) NOTE: Whenever a part is worn excessively, 1. Inspect the mixing body for cracks, nicks, stripped threads, and any other imperfections in the casting. 2. Inspect the float for perforations or damage. 3. Inspect the gaskets for distortion, tears, or noticeable damage. 4. When applicable, inspect the idle speed screw, needle jet, pilot air screw, and pilot jet for wear, damage, or distortion. 5. Inspect the main jet for obstructions or damage. 6. Inspect the carburetor mounting flange for dam- age and tightness. 7. Place the carburetor insulator on a surface plate covered with #400 grit wet-or-dry sandpaper. Move the insulator over the surface plate using a figure eight motion. The motion should produce an even wear pattern over the entire sealing area. A739 8. Inspect the condition of the throttle return spring. Assembling Carburetor (120 cc) 1. Install the nozzle and main jet into the carbure- tor tower. GF326D ! CAUTION DO NOT place any non-metallic components in ! WARNING Always wear safety glasses when drying compo- ! CAUTION DO NOT use wire or small drill bits to clean carbure- ! CAUTION An air leak between the carburetor and engine will ! CAUTION Water or parts-cleaning solvent must be used in |