Honda CM 185T 1981 User Manual

GENERAL INFORMATION
SPECIFICATIONS
ITEM
DIMENSIONS
Overall length 1,960 mm (77.2 in.)
Overall width 830 mm (32.7 in.)
Overall height 1,130 mm (44.5 in.)
Wheelbase
1,280 mm (50.4 in.)
Seat height 730 mm (28.7 in.)
Foot peg height
180 mm ( 7.1 in.)
Dry weight
124 kg (273 lbs.)
FRAME
Type
Diamond
F. suspension, travel
Telescopic fork 115 mm (4.53 in.)
R. suspension, travel Swing arm 64 mm (2.53 in.)
F. tire size, pressure
3.00-17 (4PR) 1.75 kg/cm
2
(25 psi)
R. tire size, pressure 3.50—16 (4PR) 2.25 kg/cm
2
(32 psi)
F. brake, lining swept area Internal expanding shoes, 110 cm
2
(17.05 sq. in.)
R. brake lining, swept area
Internal expanding shoes, 123 cm
2
(19.07 sq. in.)
Fuel capacity
10.5 liters (2.8 U.S. gal.)
Fuel reserve capacity 3.0 liters (0.8 U.S. gal.)
Caster angle
62°
Trail 92 mm (3.6 in.)
Front fork oil capacity
125 cc (4.2 oz), 98 cc (3.3 oz) at draining
ENGINE
Type
Air cooled 4-stroke
Cylinder arrangement
Parallel twin 20° inclined from vertical
Bore and stroke 53x41 mm (2.09 x 1.61 in.)
Displacement
181 cc (11.03cu. in.)
Compression ratio
9.0 : 1
Valve train Chain drive overhead camshaft
Maximum horsepower
15.0 BHP/9,500 rpm
Maximum torque
1.28 kg-m (9.26 ft-lb.)/7,000 rpm
Oil capacity
1.5 liters (1.6 U.S. qt.)
Lubrication system Pressure and wet sump
Air filtration Oiled polyurethane foam
Cylinder compression
12.0 ± 2.0 kg/cm
2
(170 ± 28 psi)
Intake valve Opens
-3° (B.T.D.C.) at 1mm lift. 45° (B.T.D.C.) at 0 lift
Closes
34° (A.B.D.C.) at 1mm lift, 97° (A.B.D.C.) at 0 lift
Exhaust valve Opens 33° (B.B.D.C.) at 1 mm lift, 94° (B.B.D.C.) at 0 lift
Closes
-4° (A.T.D.C.) at 1mm lift, 49° (A.T.D.C.) at 0 lift
Valve clearance IN: 0.05 mm (0.002 in.)
EX: 0.05 mm (0.002 in.)
Idle speed
1,200 ± 100 rpm
1-2
Date of Issue: December, 1977
© HONDA MOTOR CO., LTD.

Honda CM 185T 1981 Specifications

General

Year	1981
Manufacturer	Honda
Model	CM 185T
Category	Standard
Compression Ratio	9.0:1
Ignition	CDI
Transmission	5-speed
Final Drive	Chain
Front Suspension	Telescopic forks
Rear Suspension	Dual shocks
Rear Brake	Drum
Front Tire	3.00-18
Rear Tire	3.50-17
Starting	Electric & Kick
Max Power	16 hp @ 9500 rpm
Front Brake	Disc
Seat Height	780 mm
Fuel Capacity	9.5 L (2.5 US gal)
Carburetion	Keihin

Summary

Specifications

Engine Specifications

Key engine parameters like bore, stroke, displacement, power, torque.

Service Data

Engine Component Service Data

Measurements for cylinder, piston, valves, camshaft, etc.

Tools and Torque Values

Torque Specifications

Tightening torques for critical fasteners.

Wiring Diagrams

Electrical System Wiring Diagram

Visual representation of electrical component connections.

Emission Control and Maintenance

Maintenance Schedule

Recommended service intervals and tasks.

Lubrication

Engine Oil Service

Procedures for checking, changing, and filtering engine oil.

Inspection and Adjustment

Engine System Adjustments

Adjustments for spark plug, valves, timing, carb choke/idle.

Chassis System Adjustments

Adjustments for drive chain, brakes, suspension, steering.

Carburetor Service

Carburetor Removal and Disassembly

Steps for removing and taking apart the carburetor.

Float Level and Idle Speed Adjustment

Carburetor Troubleshooting

Engine Removal and Installation

Engine Removal Procedure

Detailed steps for engine removal from the frame.

Engine Installation Procedure

Cylinder Head and Valves

Valve Seat Service

Rocker Arm and Camshaft Service

Cylinder Head Removal and Installation

Cylinder and Piston Service

Cylinder and Piston Inspection

Piston Ring Installation

Cylinder Installation

Clutch, Oil Pump, Gear Shift, Kick Starter

Clutch Service

Oil Pump Service

Gear Shift Linkage Service

Kick Starter Service

AC Generator and Starter Motor

Starter Clutch and Motor Service

Transmission and Crankshaft

Transmission Removal and Inspection

Crankshaft Service

Crankcase and Transmission Assembly

Steering, Front Wheel, and Front Suspension

Front Wheel Service

Front Fork Service

Steering Stem Service

Rear Wheel and Rear Suspension

Rear Wheel Service

Rear Shock Absorber Service

Swingarm and Rear Brake Service

Battery and Charging System

Battery Service

Charging System Service

Procedures for charging and testing the charging system.

Ignition System

Ignition System Troubleshooting

Diagnosing common ignition system failures.

Electric Starter System

Starter System Troubleshooting

Diagnosing electric starter system faults.

Switches, Lights, and Horn

Switches/Lights/Horn Troubleshooting

Diagnosing issues with lights, horn, and switches.

Troubleshooting Chart

Engine Starting and Power Issues

Diagnosing problems with starting and engine power.

Performance, Noise, and Handling Issues

Troubleshooting poor performance, noise, and handling problems.

Suspension, Brake, and Drive Chain Issues

Diagnosing faults in these systems.