user manual

3-14
CHK
ADJ
CHECKING THE IGNITION TIMING
MEASURING THE COMPRESSION PRESSURE
NOTE:
NOTE:
2. Install:
 timing light
1
 engine tachometer
2
(to the spark plug lead of cyl. #1)
Timing light
90890-03141
Engine tachometer
90890-03113
3. Check:
 ignition timing
a. Start the engine, warm it up for several min-
utes, and then let it run at the specified en-
gine idling speed.
Engine idling speed
1,000  1,100 r/min
b. Check that the pickup coil
a
is within the fir-
ing range
b
on th timing plate.
Incorrect firing range  Check the ignition
system.
The ignition timing is not adjustable.
4. Remove:
 engine tachometer
 timing light
5. Install:
 timing plate cover
Timing plate cover bolt:
7 Nm (0.7 mkg)
LOCTITE

EAS00065
MEASURING THE COMPRESSION PRES-
SURE
The following procedure applies to all of the cyl-
inders.
Insufficient compression pressure will result in a
loss of performance.
1. Check:
 valve clearance
Out of specification  Adjust.
Refer to “ADJUSTING THE VALVE CLEAR-
ANCE”.
2. Start the engine, warm it up for several min-
utes, and then turn it off.