Suzuki RM85 User Manual

TROUBLESHOOTING 3-3
Complaint Possible Cause Remedy
Engine runs poorly in
low speed range
Wide spark plug gap
Carburetor air screw maladjustment
Incorrect carburetor fuel level
Improper jet needle size
Incorrect ignition timing
CDI unit malfunction
Ignition coil damage
Magneto malfunction
Magneto short circuit
Adjust or replace
Adjust
Adjust
Replace
Adjust
Replace
Replace
Replace
Replace
Engine runs poorly in
high speed range
Narrow spark plug gap
Incorrect carburetor fuel level
Retarded ignition timing
CDI unit malfunction
Ignition coil damage
Air cleaner element clogged
Magneto short circuit
Exhaust pipe cracked
Exhaust valve malfunction
Piston ring stuck
Adjust or replace
Adjust
Adjust
Replace
Replace
Clean or replace
Replace
Replace
Clean, adjust or
replace
Replace
Exhaust valve does
not work
Carbon deposits on exhaust valve
Exhaust valve damage
Governer damage
Exhaust valve shaft damage
Valve spring damage
Clean
Replace
Replace
Replace
Replace
Spark plug does not
ignite
Ignition coil malfunction
Spark plug malfunction
Generator malfunction
CDI unit malfunction
Wide spark plug gap
Engine stop switch malfunction
Replace
Replace
Replace
Replace
Adjust
Repair or replace
Carbon deposits on
spark plug porcelain
Too rich air/fuel mixture
Too rich oil/gasoline mixture
Improper spark plug heat range
Adjust
Adjust
Replace
Spark plug electrode
damage
Improper spark plug heat range
Overheating
Incorrect ignition timing
Loose spark plug
Too lean air/fuel mixture
Replace
3-4
Adjust
Tighten
Adjust

Suzuki RM85 Specifications

General

Brand	Suzuki
Model	RM85
Category	Motorcycle
Language	English