Suzuki Samurai 1986 Service Manual page 42

Condition
Poor starting
(Hard starting)
Not enough power
Possible cause
6. Broken valve timing belt
7. Poor valve seating
8. Wrong kind of engine oil
9. Burnt valves
10. Sticky valve stem
Emission control
1. Malfunctioning PCV valve
2. Loose connection or disconnection of
vacuum hoses
3. ECM is poorly grounded
Inadequate compression
1. Improper valve clearance
2. Valves not seating tight
3. Valve stems tending to seize
4. Broken or weakened valve spring
5. Piston rings seized in grooves, or broken
6. Worn pistons, rings or cylinders
7. Leaky cylinder head gasket
Improperly timed ignition
1. Improper ignition timing
2. Defective spark plug
3. Worn distributor terminals
4. Leaks, loose connection or disconnection of
high tension cord
5. Malfunctioning ignition timing advancers
Fuel system out of order
1. Clogged carburetor jets
2. Defective fuel pump
3. Clogged fuel filter
4. Malfunctioning choke system
5. Float level out of adjustment
6. Clogged fuel pipe
7. Clogged fuel tank outlet
8. Loose joint in fuel system
Abnormal condition in air intake system
1. Air cleaner dirty and clogged
2. Poor returning motion of choke valve
Overheating tendency of engine
1. (Refer to the section entitled "over-
heating.")
.
Correction
Replace
Repair or replace
Replace
Replace
Correct or replace valve
and guide
Replace.
Connect securely.
Ground ECM securely
Adjust
Repair
Replace
Replace
Replace
Replace worn parts and
rebore as necessary
Replace
Adjust
Adjust gap or replace
Dress or replace
Connect or replace as
necessary
Replace
Disassemble and clean
Repair or replace
Replace
Adjust or replace
Adjust
Clean or replace
Clean
Retighten
Clean or replace
Repair, adjust or replace
2-3