3-10
Checking Compression
1. Remove the four 6 mm cap screws securing the
coil cover to the valve cover.
A0204
2. Remove the three 6 mm cap screws that secure the
ignition coils to the valve cover. Remove the
ignition coils noting that the coil with the green
tubing is coil #1.
A0206
3. Using a 3/8 in. drive ratchet, adapter, and 5/8 in.
spark plug socket, carefully remove the three
spark plugs.
A0203
NOTE: Before this test procedure, make certain
the battery is fully charged.
4. Install the compression tester gauge with adapter
into the spark plug hole; then with the throttle
valve in the full-open position, crank the engine
over to get the psi reading. Compression should
be 175 psi ± 10% at sea level.
A0222
NOTE: Make certain that all three cylinder read-
ings are within 10% of each other.
5. Install the spark plugs and tighten to 1.8 kg-m (13
ft-lb).
A0221
6. Install the ignition coils onto the valve cover and
tighten the three 6 mm caps screws to 1.3 kg-m
(9.5 ft-lb).
Coil Wire Colors
#1 Coil
yellow/red
black/white
#2 Coil
white/red
black/white
#3 Coil
green/red
black/white
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