Suzuki Samurai 1986, Service Manual

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Condition Possible cause Correction
Surges
Fuel system out of order
(Engine power varia-
1. Clogged fuel filter
Replace
tion under steady
2. Kinky, leaky or damaged fuel hoses and lines Check and replace as
throttle or cruise.
necessary
Feels like the car
3. Malfunctioning fuel pump Check and replace as
speeds up and down
necessary
with no change in the
4. Leaky manifold and carburetor gaskets Replace
accelerator pedal.)
5. Improper float level
Adjust
Ignition system out of order
Improper ignition timing
2. Malfunctioning ignition timing advancers
(mechanical and vacuum)
Adjust
Check or replace
3. Leaky or loosely connected high tension cord Check and repair or
replace
4. Defective spark plug (excess carbon deposits, Check and clean, adjust
improper gap, burned electrodes, etc..) or replace
5. Cracked rotor or cap in distributor Replace
Emission control
1. Malfunctioning bowl vent solenoid valve
2. Malfunctioning throttle position switch
(wide open switch)
3. Malfunctioning high altitude switch
4. Malfunctioning EGR valve
5. Malfunctioning thermostatically controlled
air cleaner
Check and replace as
necessary
Check and replace as
necessary
Check and replace as
necessary
Check and replace as
necessary
Check and replace as
necessary.
Dieseling
(Engine continues to
run after ignition
switch is turned off.
it runs unevenly and
may make knocking
noise.
Malfunctioning fuel cut solenoid valve in
carburetor
Check solenoid valve for
proper operation and
replace as necessary
Erratic idling
(Improper engine
idling)
Abnormal condition in ignition system
1. Defective spark plug
2. Leaky or disconnected high tension cord
3. Worn distributor terminals
4. Improper ignition timing
5. Cracked cap in distributor, leakage inside
Adjust or replace
Connect or replace
Replace
Adjust
Replace
2-5