11-1-3ELECTRIC SYSTEM
When there is no spark, the following must be checked.
Disconnected cable leading to ignition coil, spark plug or contact breaker. Broken ignition coil winding, causing short circuit.
3)Wet or oil soaked spark plug cable. Dirty or wet spark plug.
Incorrect spark plug electrode gap.
Short connection of spark plug electrodes. Pitted or fused breaker points.
Sticking breaker arm.
Leaking or grounded condenser. Incorrect ignition timing.
11-2 ENGINE MISSES
Incorrect spark plug electrode gap.
Worn and leaking ignition cable.
Weak spark.
Loose connections in ignition wire.
Pitted or worn breaker points.
Gasoline containing water.
7)Poor compression.
11-3 ENGINE STOPS
1)Fueltankempty.Gasolinecontaminatedwithwater,dirtorgum.
2)Gasolinevaporizedinfuellines due to excessiveheatingaroundengine.(Vaporlock)
3)Vapor lock in fuel lines or carburetor due to the use of too volatile winter gas in the hot season
4)Air venthole in fueltankcapplugged,
5 ) Seizure in rotating or sliding pairs in engine due to lack of oil.
6)Ignitiontroubles.
114ENGINEOVERHEATS
1)Crankcase oil supplylow.Replenishimmediately.
2)Incorrectsparktiming.
3)Low gradegasoline is used. Engine overloaded.
4)Restrickedcoolingair5rculation.
*5 ) Coolingairpartlymisdirectedcausing loss to coolingefficiency.
6)Cylinderheadcoolingfinsblockedwithdirt.
7)Engine operated in closed space without fresh supply of cooling air.