1983 ATC250R Specifications

General Specs
Model CodeTB06
Product Code964
Frame VIN LocationStamped on left side of frame neck
Engine Serial LocationStamped on lower right side of crankcase
Frame Starting NumberJH3TB060*DC200001
Engine Starting NumberTB06E-2200005
Owner Manual31964600
Service Manual6196103
Length1840 mm (72.4 in)
Width1075 mm (42.3 in)
Height1075 mm (42.3 in)
Seat Height735 mm (28.9 in)
Wheelbase1260 mm (49.6 in)
Ground Clearance120 mm (4.7 in)
Dry Weight133 kg (293.3 lb)
Caster Angle20.5°
Trail33 mm (1.3 in)
Tire & Rim
Front Tire Size (HxW-R)23.5x8-11
Rear Tire Size (HxW-R)22x11-8
Engine Type2 Stroke air cooled
Cylinder ArrangementSingle cylinder inclined 3 degrees
Displacement247 cc (15.1 ci)
Bore70 mm (2.8 in)
Stroke64.4 mm (2.5 in)
Compression Ratio6.7:1
Starter TypeForward kick start
Fuel TypePre-mixed 20:1
Oil Capacity - Total1.1 L (1.2 US qt; 1 Imp qt)
Oil Capacity - Oil Change0.9 L (1 US qt; 0.8 Imp qt)
Engine Dry Weight30 kg (66.2 lb)
Drive Train & Transmission
Clutch TypeManual wet multiplate
Transmission Type5 speed constant mesh
Primary Reduction3.250
First Gear1.900
Second Gear1.591
Third Gear1.240
Fourth Gear1.000
Fifth Gear0.839
Final Reduction3.231
Gear Shift Pattern1 - N - 2 - 3 - 4 - 5
Identification MarkPE30A
TypePiston valve
Throttle Bore30 mm (1.2 in)
Main Jet#130
Pilot Jet/Slow Jet#50
Jet Needle Clip Position3rd Groove
Pilot Screw Adjustment1 1/2 Turns out
Float Level20 mm (0.8 in)
Engine Idle1300 RPM
Air Filter TypeOiled polyrethane foam
Fuel Tank Capacity10.5 L (2.8 US gal; 2.3 Imp gal)
Fuel Tank Reserve1.8 L (0.5 US gal; 0.4 Imp gal)
Ignition TypeCDI
CDI Identification MarkCF415 (964)
Spark PlugBR8ES (NGK)
Spark Plug Gap Max0.7-0.8 mm (0.028-0.031 in)
Pulse Generator20-60 Ω
Exciter Coil245 Ω
Ignition Coil Primary0.2-0.8 Ω
Ignition Coil Secondary w/o Cap8000-15000 Ω
Initial Ignition Timing17.0° BTDC
Full Advance Ignition Timing14.0° BTDC
Ignition Advancement TypeElectronic
Voltage12 V
Alternator Max Output73 W
Alternator Max Output RPM7600 RPM
Front Brake OperationRight Hand
Rear Brake OperationRight Foot
Front Brake TypeHydraulic Disc
Rear Brake TypeHydraulic Disc
Front SuspensionTelescopic fork
Rear SuspensionPro-link Swing arm
Front Wheel Travel220 mm (8.7 in)
Rear Wheel Travel206 mm (8.1 in)
Front Fork Oil Capacity281 cc (9.5 US fl oz; 9.9 Imp fl oz)

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.