7-1
Power unit (check and adjustment)
Power unit (check and adjust-
ment)
Checking the compression pressure
1. Start the engine, warm it up for 5–10 min-
utes, and then stop it.
2. Remove:
•Clip
(from the engine shut-off switch)
• Fuel injector coupler
See “Fuel injector” (6-28).
• Ignition coil
• Spark plug
See “Camshaft” (7-38).
Before removing the spark plugs, remove
any dirt or dust in the spark plug wells that
could fall into the cylinders.
3. Install:
• Special service tool
4. Measure:
• Compression pressure
Below specification Check the engine
internal parts.
Crank the engine until the reading on the com-
pression gauge stabilizes.
5. Remove:
• Special service tool
6. Install:
• Spark plug
• Ignition coil
See “Camshaft” (7-38).
• Clip
(to the engine shut-off switch)
Checking the oil pressure
1. Connect the YDIS to display “Oil pres-
sure”.
2. Start the engine and warm it up until the
engine idle speed stabilizes at the speci-
fied engine idle speed range.
A. Worldwide
B. USA and Canada
Compression gauge “1”
90890-03160
Compression gauge extension “2”
90890-06563
Combination compression gauge
and cylinder leakdown test kit “3”
YB-45544-A
Compression pressure
Minimum (reference data)
628.8 kPa (6.29 kgf/cm², 91.2
psi)
Spark plug
11 N·m (1.1 kgf·m, 8.1 lb·ft)
Idle speed (in neutral)
600–700 r/min
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