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Section 03 TROUBLESHOOTING SYMPTOM ENGINE DOES NOT OFFER MAXIMUM POWER AND/OR DOES NOT REACH MAXIMUM OPERATING RPM. CONDITION NORMAL USE. 1. Check spark plug condition and gap. a. Fouled spark plugs or wrong spark plug gap. Replace or readjust gap. 2. Check if there is water in fuel. a. There is water in fuel. Drain fuel system, then fill with appropriate fuel. RAVE Equipped Engines 3. Check proper operation of RAVE valves. (Refer to ENGINE EQUIPPED WITH RAVE VALVE DOES NOT REACH ITS FULL OPERATING RPM (500 TO 1000 RPM LOWER). Repair. 4. Check items listed in ENGINE RUNS OUT OF FUEL (refer to FUEL AND OIL SYSTEMS subsection). 5. Check carburetor adjustments and cleanliness. a. Inadequate carburetor adjustments or dirt accumulation. Adjust according to specifications (refer to TECHNICAL DATA) or clean. 6. Check drive belt. a. Worn belt. Replace belt if width is 3 mm (1/8 in) less than nominal dimension (refer to TECHNICAL DATA). 7. Check track adjustment. a. Too much tension and/or improper alignment. Align track and adjust its tension to specifications (refer to TECHNICAL DATA). 8. Check drive pulley. a. Improper calibration screw adjustments (TRA pulley) and/or worn bushing(s). Adjust according to specifications (refer to TECHNICAL DATA) and/or replace bushing(s). 9. Check driven pulley. a. Worn bushing and/or spring tension. Replace spring and/or adjust its tension according to specifications (refer to TECHNICAL DATA). 10. Check exhaust system. a. Restriction or exhaust system leakage. Replace or reseal with Ultra Copper. 11. Check ignition timing. a. Decrease in power due to delayed ignition. Adjust according to specifications (refer to TECHNICAL DATA). 12. Check engine compression. a. Worn piston(s) and ring(s). Replace (refer to TECHNICAL DATA for specifications). 13. Check engine cooling system. a. Coolant level is low, cap fails to pressurize system or air circulates through lines. Adjust level, replace cap or bleed cooling system. TEST/INSPECTION 14. Check reed valve. a. Improper tightness and/or opening. Replace or adjust. (Refer to proper ENGINE subsection). 40 mmr2004-Rev |