3-9
E
INSP
ADJ
POWER UNIT
POWER UNIT
Spark plug inspection
1. Check:
• Electrodes
1
Damage/wear
→
Replace.
• Insulator color
2
Distinctly different color
→
Check the
condition of the engine.
2. Clean:
• Spark plug
(using a spark plug cleaner or wire
brush)
Color guide:
Medium-to-light tan color:
Normal
Whitish color:
Lean air-fuel mixture
Air leakage
Incorrect settings
Blackish color:
Overly rich air-fuel mixture
Electrical malfunction
Excessive oil use
Defective spark plug
3. Measure:
• Spark plug gap
a
Out of specification
→
Regap.
Spark plug gap:
1.0–1.1 mm (0.039–0.043 in)
Summary of Contents for WaveRunner GP1300R
Page 1: ...SUPPLEMENTARY SERVICE MANUAL GP1300R WaveRunner F1G 28197 1G 1X LIT 18616 02 90 LIT186160290...
Page 10: ...E TROUBLE ANALYSIS TROUBLE ANALYSIS 48 SELF DIAGNOSIS 48 WIRING DIAGRAM...
Page 61: ...YAMAHA MOTOR CORPORATION USA Printed in USA Dec 2004 0 0 1 CR E...
Page 62: ...SERVICE MANUAL GP1300R WaveRunner F1G 28197 1F 11 LIT 18616 02 44 LIT186160244...
Page 340: ...YAMAHA MOTOR CORPORATION USA Printed in USA Feb 2003 0 0 1 CR E...