Honda 1986 GoldWing GL1200A Manual page 76

CFI System
Troubleshooting
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Fast Idle speed does not decrease when warm.
NOTE: Warm engine up to normal operating temperature before inspecting.
WIRING: Disconnect coupler from air
valve. Measure Input voltage between
Br {
+)
and G (-) terminals of wire harness
o
Volts
coupler Battery voltage should be
indicated about 3 seconds after ignition
switch is turned ON.
!
Battery Voltage
AIR VALVE: Measure resistance between
Abnormal
coupler terminals of air valve (see
page 10-34)
~
65-100n
AIR VALVE: Pinch air bypass hoses
between air valve and air chamber, air
valve and reed valves. Recheck idle
speed. Idle speed should decrease.
Idle Speed
Air oypass hoses
' I
Decreases
,
..
~:,
To air
~·a-=--
chamber
~.
[
._~:1
;:::;
,
-::I.
Air
Vallie? ' .
,
1
~
Not Decreased
COOLING: Check water bypass hoses
Blocked
between air valve and thermostat hOUSing.
There should be no blocking.
l
Clear
AIR LEAKS: Check for air leaks
In
intake
Abnormal
system between throttle valve and cylinder
head.
I
Normal
• Open circuit In wire harness.
• Faulty air valve.
• Faulty air valve.
• Coolant cannot reach air valve.
• Secondary air leak.
• Damaged or leaking bypass hose.
10-16