Ignition Timing Check - Yamaha XVS6501997 Service Manual

SPARK PLUG INSPECTION/IGNITION TIMING CHECK
2. Check:
S Spark plug type
Incorrect ! Replace.
Standard spark plug:
DPR7EA-9 (NGK)
X22EPR-U9 (DENSO)
3. Inspect:
S Electrode 1
Wear/damage ! Replace.
S Insulator 2
Abnormal color ! Replace.
Normal color is a medium-to-light tan col-
or.
4. Clean:
S Spark plug
(with spark plug cleaner or wire brush)
5. Measure:
S Spark plug gap a
(with a wire gauge)
Out of specification ! Adjust gap.
Spark plug gap:
0.8 X 0.9 mm
6. Install:
S Spark plug
NOTE:
Before installing a spark plug, clean the gasket
surface and the plug surface.
EB303051

IGNITION TIMING CHECK

NOTE:
Prior to checking the ignition timing, check all
electrical connections related to the ignition
system. Make sure all connections are tight and
free of corrosion and that all ground connec-
tions are tight.
3-12
INSP
ADJ
18 Nm (1.8 mSkg)