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MAINTENANCE 5 MAINTENANCE Clean, adjust and renew 1. Take great care when fitting spark plugs not to cross-thread plug, otherwise costly damage to 2. Clean or replace spark plugs as applicable. fitted. 4. Incorrect grade of plugs may lead to piston overheating and engine failure. Remove 5. Disconnect battery negative lead. Remove H.T. leads from spark plugs. 6. Remove plugs and washers. Clean spark plugs 7. Fit plug into 14 mm adaptor of approved spark plug cleaning equipment. Wobble plug in adaptor 8. Wire-brush plug threads; open gap slightly, and vigorously file electrode sparking surfaces using 9. Set electrode gap to recommended clearance. 10. Shows dirty plug. 13. Test plugs in accordance with plug cleaning machine manufacturers’ recommendations. 14. Satisfactory plugs can be refitted. shrouds are firmly seated. Fitting H.T. leads 16. Ensure replacement H.T. leads are correctly refitted as illustrated. |