Yamaha 2004 FZ6-SS Service Manual - Chk
3-23
CHECKING THE SPARK PLUGS/
MEASURING THE COMPRESSION PRESSURE
CHK
ADJ
18 Nm (1.8 m
Skg, 13 ftSlb)
NOTE:
NOTE:
7. Install:
Sspark plug
Sspark plug caps
Before installing the spark plug, clean the spark
plug and gasket surface.
8. Install:
Sradiator lower hose bracket bolt
Sradiator lower bolt
EAS00065
MEASURING THE COMPRESSION
PRESSURE
The following procedure applies to all of the cyl-
inders.
Insufficient compression pressure will result in a
loss of performance.
1. Measure:
Svalve 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:
Srider seat
Refer to “SEAT”.
Sfront cowling inner panel (letf and right)
Refer to “COWLINGS”.
Sfuel tank
Refer to “FUEL TANK”.
Sair filter case
Refer to “AIR FILTER CASE”.
Sbattery
Refer to “CHECKING AND CHARGING THE
BATTERY” in chapter 3.
Sbattery box
Sbattery box bracket
Refer to “BATTERY BOX AND BATTERY
BOX BRACKET”.
Sheat protector plate
4. Remove:
Scover
Signition coils
Sspark plug caps
Sspark plugs