Yamaha Tracer MT09TRAH 2017 Service Manual page 251

Compression pressure (with oil applied into the
cylinder)
Reading
Higher than without oil
Same as without oil
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6. Install:
• Spark plugs
Spark plug
13 N·m (1.3 kgf·m, 9.4 lb·ft)
7. Install:
• Ignition coils
Refer to "CAMSHAFTS" on page 5-9.
• Air cut-off valve
Refer to "AIR INDUCTION SYSTEM" on
page 7-15.
• Air filter case
Refer to "GENERAL CHASSIS (3)" on page
4-13.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Fuel tank cover
Refer to "GENERAL CHASSIS (3)" on page
4-13.
• Rider seat/Passenger seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Front side cowling/Front side panel/Fuel tank
front cover
Refer to "GENERAL CHASSIS (2)" on page
4-6.
Diagnosis
Piston ring(s) wear or
damage  Repair.
Piston, valves, cylinder
head gasket possibly
defective  Repair.
ENGINE INSPECTION
5-2