Yamaha 50G, Руководство по обслуживанию

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3-8
INSP
ADJ
E
PERIODIC SERVICE
1 Timing indicator
2 Full-advance indication (75, 80 hp)
3 Full-advance indication (90 hp)
4 Full-advance adjusting screw
IGNITION TIMING ADJUSTMENT
CAUTION:
When checking ignition timing using a tim-
ing light, be sure to replace the propeller
with the specified test propeller, and make
tests with the machine placed in a test
tank.
NOTE:
Before adjusting, be sure to warm up the
engine.
1. Attach the timing light and tachometer
to the No. 1 cylinder high tension code.
2. While keeping the stopper in contact
with the full-retard adjusting screw,
measure the full-retard ignition timing
with the timing light.
If the timing is out of specification,
adjust it by turning the full-retard
adjusting screw.
NOTE:
When measuring the full-retard ignition
timing, keep the specified engine speed.
Full-retard side engine speed:
800
±
50 rpm
Full-retard side ignition timing:
50, 60, 70 hp: 7
±
1˚ ATDC
75, 80, 90 hp: 8
±
1˚ ATDC