Checking The Fuel Line; Checking The Spark Plugs - Yamaha FJR13AG Service Manual

EAS30619

CHECKING THE FUEL LINE

1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• T–bar
Refer to "GENERAL CHASSIS (6)" on page
4-22.
2. Check:
• Fuel hose "1"
• Fuel tank breather hose "2"
• Fuel tank overflow hose "3"
• Fuel tank breather/overflow hose "4"
Cracks/damage → Replace.
Loose connection → Connect properly.
ECA16950
NOTICE
Make sure the fuel tank breather/overflow
hose is routed correctly.
1
3. Install:
• T–bar
Refer to "GENERAL CHASSIS (6)" on page
4-22.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Rider seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
EAS30620

CHECKING THE SPARK PLUGS

The following procedure applies to all of the
spark plugs.
1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
3
2
4
3-4
PERIODIC MAINTENANCE
• T–bar
Refer to "GENERAL CHASSIS (6)" on page
4-22.
2. Remove:
• Ignition coil
3. Remove:
• Spark plug
ECA13320
NOTICE
Before removing the spark plugs, blow away
any dirt accumulated in the spark plug wells
with compressed air to prevent it from falling
into the cylinders.
4. Check:
• Spark plug type
Incorrect → Change.
Manufacturer/model
NGK/CPR8EA-9
5. Check:
• Electrodes "1"
Damage/wear → Replace the spark plug.
• Insulator "2"
Abnormal color → Replace the spark plug.
Normal color is medium-to-light tan.
6. Clean:
• Spark plug
(with a spark plug cleaner or wire brush)
7. Measure:
• Spark plug gap "a"
(with a wire thickness gauge)
Out of specification → Regap.
Spark plug gap
0.8–0.9 mm (0.031–0.035 in)
8. Install:
• Spark plug
Spark plug
13 Nm (1.3 m·kgf, 9.4 ft·lbf)