CARBURETOR
TROUBLESHOOTING
Engine Cranks But Won't Start
1. No fuel in tank
2. No fuel to cylinders
3. Too much fuel getting to cylinders
4. No spark at plugs (ignition malfunction)
5. Air cleaner clogged
6. Improper choke operation
7. Improper t h r o t t l e operation
Engine Idles Roughly, Stalls, or Runs Poorly
1. Idle speed incorrect
2. Ignition malfunction
3. Low compression
4. Rich mixture
5. Lean mixture
6. Air cleaner clogged
7. A i r leaking into manifold
8. Fuel contaminated
9. Carburetor malfunction
Lean Mixture
1. Carburetor fuel jets clogged
2. Fuel cap vent blocked
3. Fuel filter clogged
4. Fuel line kinked or restricted
5. Float valve faulty
6. Float level t o o low
7. Air vent tube clogged
8. Intake air leak
9. Pilot screw misadjusted
Rich Mixture
1. Choke stuck closed
2. Float valve faulty
3. Float level too high
4. Carburetor air jets clogged
5. Pilot screw misadjusted
6. Air cleaner clogged
Misfiring during Acceleration
1. Incorrect carburetor air/fuel mixture
Backfiring
1. Incorrect carburetor air/fuel m i x t u r e
2. Carburetor malfunction
4 - 2
Date of Issue: December, 1977
© H O N D A MOTOR CO.. L T D .
Summary of Contents for CM 185T 1981
Page 8: ...GENERAL INFORMATION 1 8 Date of Issue December 1977 HONDA MOTOR CO LTD ...
Page 9: ...GENERAL INFORMATION WIRING DIAGRAMS 1 8 Date of Issue December 1977 HONDA MOTOR CO LTD ...
Page 47: ...CARBURETOR 4 ...
Page 54: ...ENGINE REMOVAL AND INSTALLATION 5 Date of Issue December 1977 HONDA MOTOR CO LTD ...
Page 56: ...CYLINDER HEAD VALVES SERVICE DATA 6 2 Date of Issue December 1977 HONDA MOTOR CO LTD ...
Page 87: ...7 Date of Issue December 1977 HONDA MOTOR CO LTD CYLINDER PISTON ...
Page 117: ...A C GENERATOR STARTER MOTOR TORQUE 4 5 5 0 kg m 32 5 36 2 ft lb ...
Page 169: ...REAR WHEEL REAR SUSPENSION 12 Date of Issue December 1977 H O N D A MOTOR CO LTD ...
Page 198: ...17 Date of Issue December 1977 H O N D A MOTOR CO LTD SWITCHES LIGHTS HORN ...