Yamaha SRX400 (1985-86)

The Yamaha SRX400 was a motorcycle produced in 1985-86. It has a four-stroke, single cylinder engine with a capacity of 399cc, producing 33 horsepower at 7000 rpm and 3.4 kgf-m of torque at 6000 rpm. The bike features a YDIS Twin Carburetor induction system and TCI ignition. It has a five-speed transmission and chain final drive with heavy-duty O-ring and 138 links. The front suspension is telescopic forks while the rear suspension is dual shocks. The front brake is a single 320mm disc with 4 piston caliper while the rear brake is a single disc. The bike has a dry weight of 147 kg and a fuel capacity of 15 liters. The front and rear tires are tubeless with sizes of 110/70-17 and 140/70-17 respectively.

Technical specifications:

Make Model: Yamaha SRX 400

Year: 1985 – 86

Engine: Four stroke, single cylinder, SOHC, 4 valves
Capacity: 399 cc / 24.3 cu-in
Bore x Stroke: 87 67.2 mm
Cooling System: Air cooled
Compression Ratio: 9.2:1
Induction: YDIS Twin Carburetor
Ignition: TCI
Spark Plug: DPR8EA-9, IX24B, DPR8EIX
Starting: Kick
Max Power: 33 hp / 24.6 kW @ 7000 rpm
Max Torque: 3.4 kgf-m / 24.5 lb-ft @ 6000 rpm
Transmission: 5 Speed
Final Drive: Chain, 428 Heavy Duty O-Ring, 138 links
Sprocket Front / Rear: 17 / 50
Front Suspension: Telescopic forks

Rear Suspension: Dual shocks
Front Brakes: Single 320mm disc 4 piston caliper
Rear Brakes: Single disc
Front Tyre: 110/70-17 Tubeless
Rear Tyre: 140/70-17 Tubeless
Dry Weight: 147 kg / 324 lbs
Fuel Capacity: 15 Liters / 3.9 US gal

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