Matchless G9 Twin (1948-58)

Make Model: Matchless G9


Year: 1948 – 58
Engine: Parallel twin cylinder
Capacity: 498 cc / 30.4 cub in.
Bore x Stroke: 66 x 72.8 mm
Cooling System: Air cooled
Compression Ratio: 7.7:1
Lubrication: Dry sump
Engine Oil: Hot: SAE 50 Cold: SAE 30 Extremely Cold: SAE 20
Oil Capacity: 2.5 L / 5.3 US pints
Exhaust: Twin, chrome, megaphone silencers
Fuel System: Amal 376/6
Ignition: Magneto, Lucas K2F
Starting: Kick
Battery: Lucas, 6V 12 Ah
Spark Plug: KLG FE80, 14mm thread
Maximum Power: 24.3 kW / 33 hp @ 6800 rpm
Transmission: 4-Speed
Final Drive: Chain
Gear Ratios: 1st 2.67 / 2nd 1.77 / 3rd 1.35 / 4th 1.0:1
Frame: Single top and down pipe, double cradle

Wheelbase: 1403 mm / 55.25 in.
Front Suspension: Teledraulic
Rear Suspension: Swingarm, twin shocks and coil springs, oil dampers
Front Brakes: Drum
Rear Brakes: Drum
Wheels: Steel, wire spokes
Front Tyre: 3.25 x 19 in.
Rear Tyre: 3.50 x 19 in.
Dry Weight: 181 kg / 400 lbs
Fuel Capacity: 17 L / 4.5 US gal
Top Speed: 137 km/h / 85 mph
Colours: Black, Red
Source: Wikipedia


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