trouble shooting

Question 1

if an engine will not fir, what is the most like cause?

Answer 1

defective distributor
faulty coil
battery discharged
bad condenser

Question 2

how would you detect a bad spark plug?

Answer 2

start the enginee
with an insulated handle screw driver, ground each plug to the engine,
the good plug will cause the engine to struggle but
the bad won’t

Question 3

how would detect a bad condenser?

Answer 3

difficulty in starting

burning of contact points (the points would have a whitish appearance)

Question 4

how would you detect a bad coil?

Answer 4

difficulty in starting, then the coil would become overheated

Question 5

if the starter will not turn the engine

what are the most likely causes?

Answer 5

generator not charging
loose battery terminals
faulty starter switch
defective starter

Question 6

what can cause a spark plug to foul?

Answer 6

when oil is forced between the cylinder wall and piston into the combustion chamber,
due to worn cylinder or broken piston rings.

Question 7

what is the most likely cause of gas not reaching the carburetter?

Answer 7

lack of petrol in tank
choked gas line
faulty petrol pump
defective needle valve

Question 8

what can cause an engine to misfire?

Answer 8

detached spark plug wire
faulty coil
unseated valves
bad spark plug
a faulty cylinder