Brisk

Diagnosis of failure

Failure Cause Consequences Fig.
Improperly adjusted ignition system Spark advance (from a proper moment) Pre - ignitions Detonation burning 2
Spark delay (from a proper moment) Excessive formation of combustion deposits 1
Improper air/fuel ratio Rich mixture Excessive formation of combustion deposits 1
Lean mixture Pre - ignitions Detonation burning 2
Low or no performance of the air filter Dust penetration into the combustion area Excessive deposits 3
Filter impassability Excessive formation of combustion deposits 1
Compression pressure Low Excessive formation of combustion deposits 1
Improperly selected spark plug Too hot Pre - ignitions Detonation burning 2
Too cold Excessive formation of combustion deposits 1
None Perfect performance of the spark plug 4
Figure 1 Figure 2
Figure 3 Figure 4