SPECIFICATION. Single-cylinder with overhead valves.
ENGINE - Of "A.J.S." design and manufacture. Bore 74 m.m. Stroke 81 m.m. Capacity 349 c.c. Adjustable mechanical lubrication by gear-driven pump made integral with magneto chain cover. Compression ratio 6 to 1. Single-pert detachable cylinder head of efficient design, duplex valve springs. Duralumin rocker arms, tappet tubes and small end bush, aluminium alloy piston with fully floating gudgeon pin and four rings. Roller bearing big end, single row ball bearing timing-side mainshaft, double row ball bearing driving-side mainshaft. Totally enclosed exhaust valve lifter mechanism and tappet adjustment. Inspection disc on magneto chain cover for inspecting chain tension. Vernier setting device for ignition timing.
GEAR BOX - Four-speed gear made, to "A.J.S." design. Ratios 5.25, 6.95, 8.15 and 15.85 to 1. Enclosed foot starter mechanism. Hand or foot control optional.
CLUTCH - Multi-plate clutch with hand control of light tension, push rod and control cable adjuster provided.
FRAME - Strengthened Frame with torque stays from engine plates to rear axle.
TYRES - 26 in. x 3.5 in. Studded Cord Tyres.
WHEEL HUBS - Adjustable taper roller bearings to both wheels.
CARBURETTOR - " Amal " needle-type with throttle stop and twist grip control.
HANDLEBARS - Adjustable semi-sports pattern with controls made integral. Black enamel finish and chromium plated levers.
FRONT FORKS - Centre barrel spring type with adjustable spindles and hand adjustable shock absorber. Hand adjusted multi-plate steering damper.
FOOTRESTS - Adjustable with wide range positions, thick rubber pads.
SADDLE - "Lycett" flexible top, adjustable in all directions.
BRAKES - Internal expanding front and rear, both 5 ½ in. diameter, fitted with hand adjusters, dust and water excluders. Powerful and progressive in action.
TRANSMISSION - " Renold " chain, front 7/16 in x .265 in, rear ½ in. x .305 in. Primary drive running in oil bath. Efficient shock absorber fitted to engine shaft, lubricated by oil bath. Rear chain adequately protected by top half chain cover.
MUDGUARDS - Dome section. Rear, with hinged back portion to facilitate wheel removal.
STAND - Easily operated centre stand.
EXHAUST SYSTEM - As illustrated, or up-turned exhaust pipe with round type silencer optional.
EQUIPMENT - Complete kit of tools including grease gun and tyre inflator.
PETROL TANK - Finish : Usual " A.J.S." black and gold. Capacity 1 ¾ gallons. With provision for fitting flush instrument panel.
OIL TANK - Capacity 3 ½ pints. Quick action filler cap.
PRICE - To Standard Specification £ 43-5-0.
From the 1934 AJS Catalogue
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