Yamaha YFM4FAR, Руководство по обслуживанию

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3 - 20
CHK
ADJ
CHECKING THE IGNITION TIMING
CHECKING THE IGNITION TIMING
NOTE:
Engine idling speed and throttle cable free play
should be adjusted properly before checking
the ignition timing.
1.Remove:
●
Seat
●
Fuel tank side panel (right)
Refer to “SEAT, CARRIERS, FENDERS
AND FUEL TANK”.
2.Attach:
●
Inductive self-powered tachometer or engine
tachometer
●
Timing light
(to spark plug lead)
3.Check:
●
Ignition timing
*****************************************************
Checking steps:
●
Warm up the engine and keep it at the
specified speed.
●
Remove the recoil starter
1
.
●
Remove the timing plug
2
.
●
Visually check the stationary pointer
3
to
verify it is within the required firing range
4
indicated on the flywheel.
Incorrect firing range
→
Check the pickup
coil.
●
Install the timing plug.
●
Install the recoil starter.
*****************************************************
Inductive self-powered tachometer:
P/N. YU-8036-B
Engine tachometer:
P/N. 90890-03113
Timing light:
P/N. YM-33277-A, 90890-03141
Engine speed:
1,450 ~ 1,550 r/min
T
R
.
.
Recoil starter bolt:
10 Nm (1.0 m • kg, 7.2 ft • Ib)
LOCTITE
®