Suzuki DR600S - Engine Troubleshooting

7-1
SERVICING
INFORMATION
TROUBLESHOOTING
ENGINE
Complaint
Symptom
and
possible
causes
or is hard to start.
Engine will not start
Valve
clearance
out
of
adjustment.
Worn
valve
guides
or
poor
seating
of
valves
Valves
mistiming.
Piston
rings
excessively
worn.
Worn-down
cylinder
bore
Poor seating of spark plug
POPWns
Plug not sparking
Fouled spark plug
Wet spark plug.
Defective magneto.
Defective CDI unit
Defecitve ignition coil.
.
Open
or
short
circuit
in
high-tension
cord
PAPwWNH
No
fuel
reaching
the
carburetor
Clogged
fuel
tank
vent
hose
Clogged
or
defective
fuel
cock.
Defective
carburetor
float
valve
Clogged
fuel
hose.
Clogged fuel filter.
Se ee hee
Remedy
Adjust
Repair
or
replace
Adjust
Replace.
Replace
or
rebore.
Retighten.
Clean
or
replace
Clean
and
dry
Replace
Replace
Replace
Replace.
Clean
Clean or replace.
Replace
Clean or replace.
Clean or replace.
Engine stalls easily.
Fouled spark plug.
Defective magneto.
Defective
CDI
unit.
Clogged fuel hose.
Clogged
jets
in
carburetor.
Valve
clearance
out
of
adjustment.
eye Pes Nh
Noisy engine.
Excessive
valve
chatter
1.
Valve
clearance
too
large.
2.
Weakened
or
broken
valve
springs.
3.
Worn
down
rocker
arm
or
rocker
arm
shaft
Noise
appears
to
come
from
Piston
1.
Piston
or
cylinder
worn
down.
2.
Combustion
chamber
fouled
with
carbon
3.
Piston
pin
or
piston
Pin
bore
worn.
4.
Piston
rings
or
ring
groove
worn.
Noise
seems
to
come
from
timing
chain
1.
Stretched
chain.
2.
Worn
sprockets,
3.
Chain
tensioner
not
working.
Noise
seems
to
come
from
clutch
Worn
splines
of
countershaft
or
hub.
Worn
teeth
of
clutch
plates.
Distorted
clutch
Plates,
driven
and
drive.
Worn
clutch
release
bearing.
Clutch
dampers
weakened.
Pepys
Noise
seems
to
come
from
crankshaft
1.
Worn
or
burnt
bearings.
2.
Big-end
bearing
worn
or
burnt.
3.
Thrust
clearance
too
large.
Clean.
Replace.
Replace
Clean.
Clean.
Adjust.
Adjust.
Replace
Replace
Replace
Clean
Replace.
Replace
Replace.
Replace.
Repair or replace.
Replace.
Replace
Replace.
Replace.
Replace the primary driven
gear.
Replace.
Replace.
Replace.