1987 ATC125M Specifications

General Specs
Model CodeTE01
Product CodeHB6
Frame VIN LocationStamped into right side of frame neck
Engine Serial LocationStamped on bottom of left crankcase cover
Frame Starting NumberJH3TE010*HK300001
Engine Starting NumberTE01E-8300001
Owner Manual31HB6610
Service Manual61HB601
Length1660 mm (65.4 in)
Width990 mm (39 in)
Height965 mm (38 in)
Seat Height680 mm (26.8 in)
Wheelbase1085 mm (42.7 in)
Ground Clearance120 mm (4.7 in)
Dry Weight125 kg (275.6 lb)
Tire & Rim
Front Tire Size (HxW-R)22x11-8
Rear Tire Size (HxW-R)22x11-8
Engine TypeOHC single cylinder 4 stroke air cooled
Cylinder ArrangementSingle cylinder inclined 25 degrees from vertical
Valve TrainOverhead camshaft - chain drive
Displacement124 cc (7.6 ci)
Bore54 mm (2.1 in)
Stroke54.5 mm (2.1 in)
Compression Ratio9:1
Cylinder Compression1230-1430 kPa (178-207 psi)
Horsepower9.4 PS (9.3 hp)
Torque0.96 kg/m3 (6.9 ft-lb)
Starter TypeElectric and recoil
Oil Capacity - Total1.5 L (1.6 US qt; 1.3 Imp qt)
Oil Capacity - Oil Change1.3 L (1.4 US qt; 1.1 Imp qt)
Engine Dry Weight30.9 kg (68.1 lb)
Drive Train & Transmission
Clutch TypeAutomatic wet multiplate centrifugal
Transmission Type5 speed constant mesh with reverse
Primary Reduction3.737
First Gear3.250
Second Gear2.188
Third Gear1.550
Fourth Gear1.167
Fifth Gear0.923
Final Reduction4.000
Gear Shift PatternForward: N - S/L - 1 - 2 - 3 - 4, Reverse: R - N
Drive Chain (Size/Links)428/96
Identification MarkPB85A
TypePiston valve
Main Jet#95
Pilot Jet/Slow Jet#35
Jet Needle Clip Position3rd groove
Pilot Screw Adjustment2 turns out
Float Level10.7 mm (0.4 in)
Engine Idle1500 RPM
Fuel Tank Capacity8.5 L (2.2 US gal; 1.9 Imp gal)
Fuel Tank Reserve1.4 L (0.4 US gal; 0.3 Imp gal)
Ignition TypeCDI
CDI Identification MarkCI511 (HB6)
Spark PlugDR8ES-L (NGK), X24ESR-U (Denso)
Spark Plug Gap Max0.6-0.7 mm (0.024-0.028 in)
Pulse Generator290-360 Ω
Exciter Coil100-300 Ω
Lighting Coil0.1-1 Ω
Ignition Coil Primary0.1-0.3 Ω
Ignition Coil Secondary w/o Cap3700-4500 Ω
Ignition Coil Secondary w/ Cap7400-11000 Ω
Initial Ignition Timing10.0° BTDC
Full Advance Ignition Timing28.0° BTDC
Ignition Advancement TypeElectronic
Voltage12 V
Power TypeFull Wave Rectified DC
Alternator Max Output130 W
Alternator Max Output RPM5000 RPM
Regulator Voltage14-15 V
Front Brake OperationRight hand
Rear Brake OperationLeft hand & right foot
Front Brake TypeCable operated drum
Rear Brake TypeCable operated drum
Front SuspensionRigid
Rear SuspensionRigid

Information on this page is provided in good faith that it is accurate, but in no way is the data guanteed to be accurate. If there are any mistakes, please contact me.