Checking The Ignition Timing; Engine Idling Speed - Yamaha XV1700PCRC Service Manual

CHECKING THE IGNITION TIMING

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EAS00061
CHECKING THE IGNITION TIMING
NOTE:
_
Prior to checking the ignition timing, check the
wiring connections of the entire ignition sys-
tem. Make sure all connections are tight and
free of corrosion.
1. Remove:
• engine left side cover 1
2. Remove:
• timing mark accessing screw 1
3. Connect:
• timing light 1
• inductive tachometer 2
(onto the spark plug lead of cylinder #1)
Timing light
YM-33277-A
Inductive tachometer
YU-8036-A
4. Check:
• ignition timing
M MMM M MMM M M MMM M
a. Start the engine, warm it up for several min-
utes, and then let it run at the specified

engine idling speed.

Engine idling speed
850 ~ 950 r/min
b. Check that the mark a is within the
required firing range b on the timing.
Incorrect firing range → Check the ignition
system.
NOTE:
_
The ignition timing is not adjustable.
L LLL L LLL L L LLL L
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CHK
ADJ
M MMM M M MMM M M MMM M MMM
L LLL L L LLL L L LLL L LLL