2007 Arctic Cat Four-Stroke Factory Service Manual, Page 118Get this manual
Problem: Engine Does Not Start (Fuel Does Not Ignite) Condition Remedy 1ECU Check Engine light failed 1Check codes repair as necessary 2Spark absent 2Check for spark see No Spark at Spark Plugs sub-section 3Service engine 3Compression low 4Clear engine (hold throttle full-open) 4Engine flooded 5Clean tank and entire fuel system 5Gasoline contaminated Problem: Engine Does Not Idle Condition Remedy 1ECU trouble code 1Service replace problem component 2Adjust throttle cable to specifications 2Throttle cable too tight 3Replace injector(s) 3Injector(s) faulty 4Replace regulator hose 4Fuel pressure regulator faulty 5Air-intake silencer obstructed 5Clean air-intake silencer 6ISC valve faulty 6Replace valve Problem: Engine Loses Power Condition Remedy 1Sensor faulty 1Check engine light for trouble code repair replace problem circuit or sensor 2Spark plug fouled 2Replace spark plugs 3External coil faulty 3Service replace coil 4Gas tank vent hose obstructed 4Service replace vent hose 5Compression low 5Service engine 6ECU faulty 6Replace ECU 7Fuel pressure regulator faulty 7Replace regulator 8Check Engine light illuminated 8Check codes repair as necessary 9Injector faulty 9Replace injector