Honda NS125F (1987)

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The Honda NS 125F is a two-stroke, single-cylinder motorcycle that was produced in 1987. It has a capacity of 124.5cc and a compression ratio of 6.5:1. The bike is equipped with a 26mm Dell’Orto PHBH 26 FS carburetor and a capacitor discharge electronic ignition. The maximum power output of the bike is 25 hp at 7000 rpm, and the maximum torque is 13.0 lb-ft at 8000 rpm. It has a multi-disc oil bath clutch and a 6-speed transmission. The final drive is via chain. The frame is a double cradle tubular steel design, and the front suspension is a non-adjustable 35mm Marzocchi telescopic fork, while the rear suspension is a Pro-link monoshock with an adjustable Marzocchi hydraulic shock absorber. The front brake is a single 254mm disc with a 2 piston caliper, while the rear brake is an 86.4 mm drum. The front tyre is 3.25-16, while the rear tyre is 3.50-18. The wheelbase is 1350 mm, and the seat height is 780 mm. The dry weight of the bike is 115 kg, and it has a fuel capacity of 14.5 litres.

Technical specifications:

Make Model: Honda NS 125F

Year: 1987


Engine: Two stroke, single cylinder, Reed valve induction
Capacity: 124.5 cc / 7.6 cu-in
Bore x Stroke: 56 x 50 mm
Cooling System: Liquid cooled
Compression Ratio: 6.5:1
Induction: 26mm Dell’Orto PHBH 26 FS carburetor
Ignition: Capacitor discharge electronic ignition.
Starting: Kick
Max Power: 25 hp / 18.6 kW @ 7000 rpm
Max Torque: 13.0 lb-ft / 1.8 kg-m @ 8000 rpm
Clutch: Multi-disc oil bath
Transmission: 6 Speed
Final Drive: Chain
Frame: Double cradle tubular steel panels
Front Suspension: 35mm Marzocchi telescopic fork is not adjustable.

Rear Suspension: Pro-link monoshockHydraulic shock absorber adjustable Marzocchi excursion.
Front Brakes: Single 254mm disc 2 piston caliper
Rear Brakes: 86.4 mm Drum
Front Tyre: 3.25 -16
Rear Tyre: 3.50 -18
Wheelbase: 1350 mm / 53.1 in
Seat Height: 780 mm / 30.7 in
Dry Weight: 115 kg / 253 lbs
Fuel Capacity: 14.5 Litres / 3.8 US gal

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