Measuring The Compression Pressure - Yamaha YZF-R6T Supplementary Service Manual

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MEASURING THE COMPRESSION PRESSURE

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CHECKING THE SPARK PLUGS/
6. Measure:
S spark plug gap a
(with a wire Thickness gauge)
Out of specification ! Regap.
7. Install:
S spark plug
NOTE:
Before installing the spark plug, clean the spark
plug and gasket surface.
8. Install:
S air filter case
Refer to "AIR FILTER CASE".
S fuel tank
Refer to "FUEL TANK".
S rider seat
Refer to "SEATS".
EAS00065
MEASURING THE COMPRESSION
PRESSURE
The following procedure applies to all of the cyl-
inders.
NOTE:
Insufficient compression pressure will result in a
loss of performance.
1. Measure:
S valve clearance
Out of specification ! Adjust.
Refer to "ADJUSTING THE VALVE CLEAR-
ANCE".
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Remove:
S rider seat
Refer to "SEATS".
S fuel tank
Refer to "FUEL TANK".
S air filter case
Refer to "AIR FILTER CASE".
4. Remove:
S cover
S ignition coils
S spark plugs
3-22
CHK
ADJ
Spark plug gap
0.6 X 0.7 mm
(0.0236 X 0.0276 in)
13 Nm (1.3 mSkg, 9.4 ftSlb)