TROUBLESHOOTING INFORMATION
RS 125
9.1.2. CARBURETOR
Trouble
Symptom and possible causes
Remedy
Starter jet obstructed.
Clean.
Starter duct obstructed.
Clean.
Air leaking past the gasket between cold-start body and
carburetor.
Check and tighten.
Difficulties on starting
Cold-start shutter is malfunctioning.
Repair.
Idle jet obstructed or loose.
Check and clean..
Air leaking past the S.I.P.C. tube of carburetor or cold-start
device.
Check.
Idle outlet or by-pass hole obstructed.
Check and clean.
Erratic operation at idling
speed or in the low
speed range
Cold-start shutter does not close fully.
Check and adjust.
Main jet obstructed.
Check and clean.
Build-up sticking to tapered needle.
Check and clean.
Throttle valve malfunctioning.
Check throttle valve
op-
eration.
Erratic operation in the
mid-to-high speed range
Filter obstructed.
Inspect and clean.
Needle valve worn or damaged.
Replace.
Float is malfunctioning.
Check and adjust.
Debris build-up on needle valve.
Clean.
Fuel level too high or too low.
Adjust float height.
Carburetor breather hose obstructed.
Clean.
Erratic overflow and fuel
level
Needle valve spring broken. .
Replace
9.1.3. RADIATOR
Trouble
Symptom and possible causes
Remedy
Coolant insufficient.
Top up.
Radiator fins obstructed by dirt or debris.
Clean.
Thermostat faulty, jammed in the closed position.
Replace.
Coolant passages obstructed.
Clean.
Air in the cooling circuit.
Bleed the circuit.
Coolant pump faulty.
Replace.
Engine overheats
Coolant used does not meet specification.
Change coolant.
Thermostat faulty, jammed in the fully open position.
Replace.
Engine will not warm up
to regular operating tem-
perature
Very low ambient temperature.
Fit cowl to radiator.
9 - 5
Summary of Contents for RS 125
Page 7: ...GENERAL INFORMATION RS 125 GENERAL INFORMATION 1 1 1 ...
Page 30: ...GENERAL INFORMATION RS 125 1 24 ...
Page 31: ...ROUTINE MAINTENANCE RS 125 ROUTINE MAINTENANCE 2 2 1 ...
Page 88: ...ROUTINE MAINTENANCE RS 125 2 58 ...
Page 89: ...LUBRICATION RS 125 LUBRICATION 3 3 1 ...
Page 92: ...LUBRICATION RS 125 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK 3 4 ...
Page 93: ...FUEL SYSTEM RS 125 FUEL SYSTEM 4 4 1 ...
Page 103: ...COOLING SYSTEM RS 125 COOLING SYSTEM 5 5 1 ...
Page 111: ...ENGINE RS 125 ENGINE 6 6 1 ...
Page 118: ...ENGINE RS 125 Generator 5 Pick up 6 ECU ground 7 Neutral light switch 8 6 8 ...
Page 123: ...ENGINE RS 125 ECU ground 6 Pick up 7 Generator 8 Starter motor 9 6 13 ...
Page 127: ...ENGINE RS 125 6 3 2 SPECIAL TOOLS Exhaust valve extractor ROTAX part no 277 445 6 17 ...
Page 133: ...CHASSIS 7 1 RS 125 CHASSIS 7 ...
Page 238: ...CHASSIS 7 106 RS 125 Pull the shock absorber in a downward motion to remove ...
Page 245: ...ELECTRICAL SYSTEM 8 1 RS 125 ELECTRICAL SYSTEM 8 ...
Page 274: ...ELECTRICAL SYSTEM 8 30 RS 125 8 16 WIRING DIAGRAM 8 16 1 WIRING DIAGRAM ...
Page 276: ...ELECTRICAL SYSTEM 8 32 RS 125 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...
Page 277: ...TROUBLESHOOTING INFORMATION RS 125 TROUBLESHOOTING INFORMATION 9 9 1 ...
Page 285: ...TROUBLESHOOTING INFORMATION RS 125 FUEL SYSTEM HOSES OIL TUBES B F E G H I 9 9 ...
Page 286: ...TROUBLESHOOTING INFORMATION RS 125 CLUTCH CABLE M L COLD START CABLE N I 9 10 ...
Page 287: ...TROUBLESHOOTING INFORMATION RS 125 THROTTLE CABLE A O H I 9 11 ...
Page 288: ...TROUBLESHOOTING INFORMATION RS 125 COOLING SYSTEM P Q 9 12 ...
Page 289: ...TROUBLESHOOTING INFORMATION RS 125 R T S 9 13 ...
Page 290: ...TROUBLESHOOTING INFORMATION RS 125 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK 9 14 ...