Yamaha SXV70SJ Supplementary Service Manual - Elec
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SELF-DIAGNOSIS
ELEC
NOTE:
SELF-DIAGNOSIS
ELEC
4. DETONATION CONTROL SYSTEM INDICATOR LIGHT
The detonation control system indicator light flashes to inform the rider that the detonation control sys-
tem has been activated. If a detonation is detected by the knock sensor, the system automatically ad-
justs the ignition timing for optimal firing, and the detonation control system indicator light flashes as
follows.
SIf the detonation level increases, the detonation control system indicator light flash pattern changes
from pattern number 1 to pattern number 2. If excessive detonation levels continue, maximum engine
speed is reduced to protect the engine.
SEngine performance will decline according to the detonation level.
SIf the carburetor settings are not appropriate for the operating conditions, detonations may occur.
After detonation stops, the engine protection control is deactivated, and the detonation control system
indicator light goes off.
1
2
ON
Warning light ON
OFF
Warning light OFF
s Time (second)