ENGINE
3.79
TROUBLESHOOTING, CONT
Excessive Smoke and Carbon Buildup
S Excessive piston-to-cylinder clearance
S Wet sumping
S Worn rings, piston, or cylinder
S Worn valve guides or seals
S Restricted breather
S Air filter dirty or contaminated
Low Compression
S Decompressor stuck
S Cylinder head gasket leak
S No valve clearance or incorrectly adjusted
S Cylinder or piston worn
S Piston rings worn, leaking, broken, or sticking
S Bent valve or stuck valve
S Valvespringbrokenorweak
S Valve not seating properly (bent or carbon accumulated on sealing surface)
S Rocker arm sticking
Backfiring
S ETC or speed limiter system malfunction
S Fouled spark plug or incorrect plug or plug gap
S Carburetion faulty - lean condition
S Exhaust system air leaks
S Ignition system faulty:
Spark plug cap cracked/broken
Ignition coil faulty
Ignition or kill switch circuit faulty
Ignition timing incorrect
Sheared flywheel key
S Poor connections in ignition system
S System wiring wet
S Valve sticking
S Air leaks in intake
S Lean condition
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