1986 TRX125 Specifications

General Specs
ManufacturerHonda
Year1986
ModelTRX125
Model NameFourtrax 125
Model CodeTE05
Product CodeVM6
Frame VIN LocationStamped on lower left side of frame in front of footpeg
Engine Serial LocationStamped on bottom of left crankcase cover
Frame Starting NumberJH3TE050*GC100001
Engine Starting NumberTE05E-2100001
Chassis
Length1600 mm (63 in)
Width980 mm (38.6 in)
Height970 mm (38.2 in)
Seat Height670 mm (26.4 in)
Wheelbase1050 mm (41.3 in)
Ground Clearance110 mm (4.3 in)
Dry Weight142 kg (313.1 lb)
Caster Angle10°
Trail38 mm (1.5 in)
Tire & Rim
Front Tire Size20x7-8
Rear Tire Size22x11-8
Engine
Engine TypeOHC single cylinder 4 stroke air cooled
Cylinder ArrangementSingle cylinder inclined 75 degrees from vertical
Valve TrainOverhead camshaft - chain drive
Displacement124 cc (7.6 ci)
Bore55 mm (2.2 in)
Stroke52.2 mm (2.1 in)
Compression Ratio8.8:1
Cylinder Compression1079-1373 kPa (156-199 psi)
Horsepower8.7 PS (8.6 hp)
Torque0.89 kg/m3 (6.4 ft-lb)
Starter TypeElectric and recoil
Fuel TypeRegular Gasoline
Oil Capacity - Total1 L (1.1 US qt; 0.9 Imp qt)
Oil Capacity - Oil Change1.2 L (1.3 US qt; 1.1 Imp qt)
Drive Train & Transmission
Clutch TypeAutomatic wet multiplate centrifugal
Transmission Type5 speed constant mesh with reverse
Primary Reduction3.722
First Gear3.403
Second Gear2.462
Third Gear1.556
Fourth Gear1.190
Fifth Gear0.958
Reverse4.376
Final Reduction3.846
Gear Shift PatternR - N - 1 - 2 - 3 - 4 - 5
DrivelineChain
Carburetor
BrandKeihin
Identification MarkPB01C
TypePiston valve
Main Jet#95
Pilot Jet/Slow Jet#38
Jet Needle Clip Position3rd Groove
Pilot Screw Adjustment1 3/4 Turns out
Float Level10.5 mm (0.4 in)
Engine Idle1700 RPM
Fuel Tank Capacity7.5 L (2 US gal; 1.6 Imp gal)
Fuel Tank Reserve0.8 L (0.2 US gal; 0.2 Imp gal)
Ignition
Ignition TypeCDI
CDI Identification MarkCI501 (VM6)
Spark PlugDR8ES-L (NGK)
X24ESR-U (Denso)
Spark Plug Gap Max0.6-0.7 mm (0.024-0.028 in)
Pulse Generator90 Ω
Pulse Generator Gap Max0.30-0.40 mm (0.012-0.016 in)
Exciter Coil100-400 Ω
Lighting Coil0.1-1 Ω
Ignition Coil Primary0.16-0.2 Ω
Ignition Coil Secondary w/o Cap3700-4500 Ω
Initial Ignition Timing10.0° BTDC
Full Advance Ignition Timing32.0° BTDC
Ignition Advancement TypeMechanical & Electronic
Electrical
Voltage12 V
Power TypeDC
Alternator Max Output48 W
Alternator Max Output RPM3400 RPM
Brakes
Front Brake TypeCable operated drum
Rear Brake TypeCable operated drum
Suspension
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.