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Section 02 TROUBLESHOOTING Subsection 04 (ELECTRICAL SYSTEM) SYMPTOM SPARK PLUG TIP IS LIGHT GRAY. CONDITION NORMAL USE 1. Refer to ENGINE SLOWS DOWN OR STOPS AT HIGH RPM and check items listed. 2. Check spark plug heat range. a. Spark plug heat range is too high. Replace by BRP's recommended spark plug (refer to TECHNICAL DATA). 3. Check if air intake silencer leaks. a. Air surplus coming from opening(s) located between halves. Seal. 4. Check carburetor adapter collars. a. Loose collar(s). Tighten. 5. Check carburetor adapter(s). a. Cracked or deformed adapter(s). Replace. TEST/INSPECTION 6. Check if primary compression leaks. a. Primary compression leaks. Perform leak down test and repair as necessary. SYMPTOM RER (ROTAX ELECTRONIC REVERSE) DOES NOT WORK. CONDITION NORMAL USE 1. Check idle speed. a. Wrong idle speed. Adjust according to specification (refer to TECHNICAL DATA). 2. Check spark plug. a. Faulty spark plug. Replace. 3. Check engine compression. a. Too low engine compression; engine stalls when pushing RER button. Rebuilt the engine. 4. Check drive belt height. a. Wrong belt height. Adjust according to specification (refer to DRIVE BELT). 5. Check carburetor synchronization and air screw adjustment. a. Wrong adjustment. Adjust according to specification (refer to TECHNICAL DATA) and read carburetor subsection. 6. Check switch electrical connections. a. Bad electrical connections or damaged wires. Clean or replace. TEST/INSPECTION 7. Check ECM or MPEM. a. Faulty ECM or MPEM. Replace. MMR2005-066 39 |