Checking The Fuel Line; Checking The Spark Plugs - Yamaha XSR MTM690 2016 Service Manual

EAS30619

CHECKING THE FUEL LINE

The following procedure applies to all of the fuel
overflow, and breather hoses.
1. Remove:
• Seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Fuel tank top cover
• Fuel tank covers
• Fuel tank center cover
Refer to "GENERAL CHASSIS (3)" on page
4-5.
• Rear fuel tank bracket bolts "1"
TIP
After removing the rear fuel tank bracket bolts,
lift up the rear of the fuel tank.
ECA20070
NOTICE
When lifting up the fuel tank, be careful not
to pull the fuel tank overflow hose and fuel
tank breather hose.
1
2. Check:
• Fuel hose "1"
• Fuel tank overflow hose "2"
• Fuel tank breather hose "3"
Cracks/damage → Replace.
Loose connection → Connect properly.
ECA16950
NOTICE
Make sure the fuel tank breather/overflow
hose is routed correctly.
1
3
3. Install:
• Rear fuel tank bracket bolt
4. Install:
• Fuel tank center cover
• Fuel tank covers
• Fuel tank top cover
Refer to "GENERAL CHASSIS (3)" on page
4-5.
• 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:
• Seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Fuel tank top cover
• Fuel tank covers
• Fuel tank center cover
• Air scoops
Refer to "GENERAL CHASSIS (3)" on page
4-5.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
2. Remove:
• Ignition coils
• Spark plugs
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.
3. Check:
• Spark plug type
Incorrect → Change.
4. Check:
• Electrode "1"
Damage/wear → Replace the spark plug.
• Insulator "2"
2
Abnormal color → Replace the spark plug.
Normal color is medium-to-light tan.
3-4
PERIODIC MAINTENANCE
Rear fuel tank bracket bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Manufacturer/model
NGK/LMAR8A-9