MRV MCP Ignition Systems

The ignition system needs to produce high voltage to ignite the air- fuel mixture.

• True

• False

Answer explanation

Pg. 85 Intro duction to outboards

Mutual induction is used.......

• inside the ignition coil

• so that a low voltage can be transformed into a higher voltage

• to operate the pulser coil

• both inside the ignition coil and so that low voltage can be transformed into higher voltage

Answer explanation

Pg.88

The spark plug gap....

• Puts a strain on the ignition coil if the gap is too large

• could cause a poor combustion event if it's too close.

• could cause a misfire

• all of these events could occur

Answer explanation

Pg.88

Ignition timing is variable on all models

• True

• False

Answer explanation

Pg. 93

Ignition advance........

• is when the timing event happens at TDC

• is when the ignition event happens after TDC

• is when the ignition event happens sooner than the base timing

• is when the ignition event happens later than the base timing

DC based ignition systems are common on large models

• True

• False

CDI ignition systems use mechanical points to control the ignition event

• True

• False

Answer explanation

Pg.99

If the spark plug gap becomes damaged, it may cause an ignition misfire

• True

• False

Answer explanation

Pg. 89

The Pulser coil will produce ______ voltage

• AC

• DC

Answer explanation

Pg. 92

If the ignition coils fails on a motor that uses dual lead ignition coils

• only the single cylinder will be affected

• only the two cylinders that are connected to that coil will not produce an ignition event

• only the ignition system timing will be affected

• the ignition will be disabled to prevent motor damage

Answer explanation

Pg 91