Yamaha 40V, Service Manual

Page: 46 / 224

3-5
INSP
ADJ
E
CONTROL SYSTEM
Start-in-gear protection adjustment
1. Check:
●
Start-in-gear protection operation
Incorrect
→
Adjust.
2. Adjust:
●
Start-in-gear protection wire
Adjustment steps:
●
Set the shift lever in neutral.
●
Loosen the lock nut 1 .
●
Adjust the start-in-gear protection wire
adjust nut
2 so that the end of the
starter stop-plunger aligns with the
center of the hole in the starter case.
●
Tighten the lock nut.
Idle speed adjustment
NOTE:
Before adjusting the idle speed, be sure to
adjust the throttle link.
1. Measure:
●
Idle speed
Out of specification
→
Adjust.
2. Adjust:
●
Idle speed
Idle speed:
800
±
50 rpm
Measuring steps:
●
Start the engine and allow it to warm
up for a few minutes.
●
Attach the tachometer to the high ten-
sion lead of the cylinder #1.
Tachometer:
YU-08036-A/90890-06760
Adjustment steps:
●
Loosen the idle adjusting screw 1 and
fully close the throttle valve.
●
Loosen the throttle lever securing
screws
2 of upper and middle carbu-
retors by turning the screws clockwise.