1991 TRX250X Specifications

General Specs
Model NameFourtrax 250X
Model CodeTE13
Product CodeHC0
Frame VIN LocationStamped on front of frame
Engine Serial LocationOn top of right side cover directly under exhaust pipe
Frame Starting NumberJH3TE130*MK300004
JH3TE133*MK300005 (NH)
Engine Starting NumberTE13E-8200010
TE13E-8200016 (NH)
Owner Manual31HC0800
Service Manual61HC052
Length1720 mm (67.7 in)
Width1105 mm (43.5 in)
Height1085 mm (42.7 in)
Seat Height770 mm (30.3 in)
Wheelbase1150 mm (45.3 in)
Ground Clearance125 mm (4.9 in)
Curb Weight170 kg (374.9 lb)
Dry Weight164 kg (361.6 lb)
Caster Angle
Trail35 mm (1.38 in)
Tire & Rim
Front Tire Size (HxW-R)22x7-10
Rear Tire Size (HxW-R)22x10-9
Front Rim Size (W x H)5.5x10
Rear Rim Size (W x H)8x9
Engine Type4 Stroke Air Cooled
Cylinder ArrangementSingle cylinder inclined 20 degrees
Valve TrainOverhead camshaft - chain drive
Displacement246.4 cc (15 ci)
Bore74 mm (2.9 in)
Stroke57.3 mm (2.3 in)
Compression Ratio9.4:1
Cylinder Compression1175-1375 kPa (170-199 psi)
Horsepower21.4 PS (21.1 hp)
Torque2.25 kg/m3 (16.3 ft-lb)
Starter TypeForward Kick Start
Oil Capacity - Total2 L (2.1 US qt; 1.8 Imp qt)
Oil Capacity - Oil Change1.6 L (1.7 US qt; 1.4 Imp qt)
Engine Dry Weight39.2 kg (86.4 lb)
Drive Train & Transmission
Clutch TypeManual wet multiplate
Transmission Type5 speed constant mesh with reverse
Primary Reduction2.833
First Gear3.692
Second Gear2.529
Third Gear1.857
Fourth Gear1.458
Fifth Gear1.178
Final Reduction2.923
Gear Shift PatternR/1 - N - 2 - 3 - 4 - 5
Drive Chain (Size/Links)520/86
Identification MarkQB01B
TypeDual Valve
Throttle Bore36 mm (1.4 in)
Main Jet#122
Pilot Jet/Slow Jet#38
Jet Needle Clip Position3rd Groove
Pilot Screw Adjustment2 1/2 Turns out
Float Level18.5 mm (0.7 in)
Engine Idle1400 RPM
Fuel Tank Capacity8.5 L (2.2 US gal; 1.9 Imp gal)
Fuel Tank Reserve1.8 L (0.5 US gal; 0.4 Imp gal)
Ignition TypeCDI
CDI Identification MarkCI536 (HC0)
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 Primary0.1-0.2 Ω
Ignition Coil Secondary w/o Cap5800-7200 Ω
Ignition Coil Secondary w/ Cap8800-14000 Ω
Initial Ignition Timing10.0° BTDC
Full Advance Ignition Timing33.0° BTDC
Voltage12 V
Alternator Max Output135 W
Alternator Max Output RPM5000 RPM
Regulator Voltage12.5-13.5 V
Front Brake TypeHydraulic Disc
Rear Brake TypeHydraulic Disc
Front SuspensionDouble wishbone
Rear SuspensionSwing arm
Front Wheel Travel170 mm (6.7 in)
Rear Wheel Travel200 mm (7.9 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.