1981 ATC250R Specifications
| General Specs | |
|---|---|
| Manufacturer | Honda |
| Year | 1981 |
| Model | ATC250R |
| Model Code | TB06 |
| Product Code | 961 |
| Frame VIN Location | Stamped on left side of frame neck |
| Engine Serial Location | Stamped on lower right side of crankcase |
| Frame Starting Number | JH3TB060*BC000020 |
| Engine Starting Number | TB06E-2000033 |
| Owner Manual | 3196100 |
| Service Manual | 6196103 |
| Chassis | |
| Length | 1795 mm (70.7 in) |
| Width | 1075 mm (42.3 in) |
| Height | 1040 mm (40.9 in) |
| Seat Height | 710 mm (28 in) |
| Wheelbase | 1197 mm (47.1 in) |
| Ground Clearance | 115 mm (4.5 in) |
| Dry Weight | 137 kg (302.1 lb) |
| Caster Angle | 21° |
| Trail | 45 mm (1.77 in) |
| Tire & Rim | |
| Front Tire Size (HxW-R) | 22x11-8 |
| Rear Tire Size (HxW-R) | 22x11-8 |
| Engine | |
| Engine Type | 2 Stroke air cooled |
| Cylinder Arrangement | Single cylinder inclined 3 degrees |
| Displacement | 248 cc (15.1 ci) |
| Bore | 70 mm (2.8 in) |
| Stroke | 64.4 mm (2.5 in) |
| Compression Ratio | 6.6:1 |
| Starter Type | Forward kick start |
| Fuel Type | Pre-mixed 20:1 |
| Oil Capacity - Total | 1.1 L (1.2 US qt; 1 Imp qt) |
| Oil Capacity - Oil Change | 0.9 L (1 US qt; 0.8 Imp qt) |
| Engine Dry Weight | 30 kg (66.2 lb) |
| Drive Train & Transmission | |
| Clutch Type | Manual wet multiplate |
| Transmission Type | 5 speed constant mesh |
| Primary Reduction | 3.250 |
| First Gear | 1.900 |
| Second Gear | 1.591 |
| Third Gear | 1.240 |
| Fourth Gear | 1.000 |
| Fifth Gear | 0.839 |
| Final Reduction | 3.385 |
| Gear Shift Pattern | 1 - N - 2 - 3 - 4 - 5 |
| Driveline | Chain |
| Carburetor | |
| Brand | Keihin |
| Identification Mark | PE23A |
| Type | Piston valve |
| Throttle Bore | 27 mm (1.1 in) |
| Main Jet | #158 |
| Pilot Jet/Slow Jet | #50 |
| Jet Needle Clip Position | 3rd Groove |
| Pilot Screw Adjustment | 1 3/8 Turns out |
| Float Level | 18.5 mm (0.7 in) |
| Engine Idle | 1300 RPM |
| Air Filter Type | Oiled polyrethane foam |
| Fuel Tank Capacity | 8.4 L (2.2 US gal; 1.8 Imp gal) |
| Fuel Tank Reserve | 1.9 L (0.5 US gal; 0.4 Imp gal) |
| Ignition | |
| Ignition Type | CDI |
| CDI Identification Mark | CI-14 |
| Spark Plug | B8ES (NGK) - US BR8ES (NGK) CAN |
| Spark Plug Gap Max | 0.7-0.8 mm (0.028-0.031 in) |
| Pulse Generator | 20-60 Ω |
| Exciter Coil | 245 Ω |
| Ignition Coil Primary | 0.2-0.8 Ω |
| Ignition Coil Secondary w/o Cap | 8000-15000 Ω |
| Initial Ignition Timing | 17.0° BTDC |
| Full Advance Ignition Timing | 14.0° BTDC |
| Ignition Advancement Type | Electronic |
| Electrical | |
| Voltage | 12 V |
| Alternator Max Output | 73 W |
| Alternator Max Output RPM | 7600 RPM |
| Brakes | |
| Front Brake Operation | Right Hand |
| Rear Brake Operation | Right Foot |
| Front Brake Type | Hydraulic Disc |
| Rear Brake Type | Drum |
| Suspension | |
| Front Suspension | Telescopic fork |
| Rear Suspension | Pro-link Swing arm |
| Front Wheel Travel | 170 mm (6.7 in) |
| Rear Wheel Travel | 110 mm (4.3 in) |
| Front Fork Oil Capacity | 174 cc (5.9 US fl oz; 6.1 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.