1986 TRX250R Specifications

General Specs
Model NameFourtrax 250R
Model CodeTE12
Product CodeHB9
Frame VIN LocationStamped on left side of frame near rear fender
Engine Serial LocationStamped on bottom of left crankcase cover
Frame Starting NumberJH3TE120*GC000001
Engine Starting NumberTE12E-1000001
Owner Manual31HB9600
Service Manual61HB903
Length1825 mm (71.9 in)
Width1130 mm (44.5 in)
Height1070 mm (42.1 in)
Seat Height775 mm (30.5 in)
Wheelbase1295 mm (51 in)
Ground Clearance110 mm (4.3 in)
Dry Weight237 kg (522.6 lb)
Caster Angle
Trail27 mm (1.06 in)
Tire & Rim
Front Tire Size (HxW-R)21x7-10
Rear Tire Size (HxW-R)20x10-9
Front Rim Size (W x H)5.5x10
Rear Rim Size (W x H)8x9
Engine Type2 Stroke liquid cooled
Cylinder ArrangementSingle cylinder inclined 7 degrees
Displacement246 cc (15 ci)
Bore66 mm (2.6 in)
Stroke72 mm (2.8 in)
Compression Ratio7.5:1
Starter TypeKick
Fuel TypePre-mixed 20:1
Oil Capacity - Total0.7 L (0.7 US qt; 0.6 Imp qt)
Oil Capacity - Oil Change0.6 L (0.6 US qt; 0.5 Imp qt)
Engine Dry Weight26 kg (57.3 lb)
Drive Train & Transmission
Clutch TypeManual wet multidisc
Transmission Type6 speed constant mesh
Primary Reduction2.652
First Gear2.570
Second Gear2.062
Third Gear1.667
Fourth Gear1.333
Fifth Gear1.083
Sixth Gear0.884
Final Reduction3.000
Gear Shift Pattern1 - N - 2 - 3 - 4 - 5 - 6
Identification MarkPJ05A
TypePiston valve
Throttle Bore34 mm (1.3 in)
Main Jet#150
Pilot Jet/Slow Jet#48
Jet Needle Clip Position4th Groove
Pilot Screw Adjustment1 7/8 Turns out
Float Level16 mm (0.6 in)
Air Filter TypeOiled polyurethane foam
Fuel Tank Capacity10 L (2.6 US gal; 2.2 Imp gal)
Fuel Tank Reserve2 L (0.5 US gal; 0.4 Imp gal)
Ignition TypeCDI
CDI Identification MarkCF502 (HA2)
Spark PlugBR8ES (NGK)
Spark Plug Gap Max0.7-0.8 mm (0.028-0.031 in)
Pulse Generator50-200 Ω
Exciter Coil50-250 Ω
Lighting Coil0.1-1 Ω
Ignition Coil Primary0.1-0.3 Ω
Ignition Coil Secondary w/o Cap3000-5000 Ω
Ignition Coil Secondary w/ Cap7000-11000 Ω
Initial Ignition Timing19.0° BTDC
Ignition Advancement TypeElectronic
Voltage12 V
Alternator Max Output159 W
Alternator Max Output RPM5000 RPM
Regulator Voltage13-15 V
Front Brake TypeHydraulic Disc
Rear Brake TypeHydraulic Disc
Front SuspensionDouble wishbone
Rear SuspensionPro-link Swing arm
Front Wheel Travel200 mm (7.9 in)
Rear Wheel Travel230 mm (9.1 in)

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.