Model FH 650 c.c. HUNTMASTER TWIN
Engine: Vertical O.H.V. 70 x 84 mm.- 646cc. (2.76 x 3.30 - 39.3 cubic inches). Cast iron cylinders and heads. Vachrome top piston rings. Forged steel crankshaft mounted on heavy duty roller and white metal lined bearings. Light alloy connecting rods with lead-bronze liners. Gear driven camshaft. Push rod operated over-head valves. Mechanical crankcase breather. Lubrication: double gear pump. Magneto with automatic advance. Amal 'Monobloc' carburetter with air cleaner.
Frame: Duplex cradle type, fully triangulated, ensuring great rigidity. Swinging arm rear suspension. Hydraulic damping. Rubber bushed pivots. Lugs for sidecar attachment either side. Thief-proof steering lock. Stands: easy-lift spring-up central and strong tubular front, also prop stand.
Front Forks: Telescopic with hydraulic damping. Attractive headlamp hood and fork cover with built-in illuminated instrument panel, containing speedometer, ammeter and lighting switch.
Hubs: Full width light alloy fitted with heavy duty ball bearings front and rear. Powerful central brakes with non-fade linings. Car type fulcrum adjustment. New quickly detachable rear wheel.
Transmission: Four-speed gearbox, foot control. Three-plate dry clutch. Engine shaft shock absorber. Polished aluminium oil bath primary chain case. Rear chain fully protected and lubricated.
Handlebars and Controls: Adjustable, chromium plated, 7/8 in. diameter.
Petrol Tank: Rubber mounted, enamelled and lined with chromium plated motifs. Quick action filler cap.
Mudguards: Wide D section. Back end of rear guard detachable for easy wheel removal.
Equipment: Ariel design dualseat and pillion footrests. Trip speedometer 120 m.p.h. (180 km.p.h.). 7 ½ in. headlamp. 56 watt dynamo. 12 amp. Battery. Stop and tail lamp. Reflector. Electric horn. Tool box and tools. Tyre inflator.
Finish: Superbly finished in best quality Deep Claret enamel.