Dunstall Motorcycles
1969 Dunstall Norton Sprint

Brief Specification

• Norton 750 Engine
• Bore 73mm, Stroke 89mm
• Capacity 745cc
• Hand finished and polished ports
• Lightened and polished rockers
• Special "H 18 S" material valves
• Bronze "Hi-Dural 5" valve guides
• Special dual rate valve springs
• Finned induction manifolds
• 10 to 1 compression, spun cast pistons
• Lucas Capacitor ignition system
• Lightened camfollowers
• Street high lift camshaft
• Paired Amal 932/901 type concentric carburettors
• Flexible forced oil feed to rockers
• Champion N6Y wide heat range plugs
• Output 66 b.h.p at 7,000 rpm

Cycle Parts

• Duplex "Featherbed" frame, crome plated
• "Road-holder" forks fitted with twin leading shoe brake
• Balanced exhuast system, or upswept, one side system
• "Decibel" silencers
• Rear footrest kit, or forward footrests with upswept pipes
• 3½ gallon lowline, 4 gallon or 5 gallon tank (choice of colours)
• G.T. dual-seat incorporating mudguard, toolbox and number plate (choice of colours)
• Chrome headlamp assembly
• Chrome dual instrument bracket
• Manx front mudguard, or glass-fibre mudguard (choice of colours)
• Semi-straight handlebars, high bars, or clip-ons
• Chrome headlamp brackets
• Chrome or alloy call-ended control levers
• Friction steering damper
• Alloy fork top yoke
• Alloy wheel rims
• Avon G.P. rear tyre, or 4.00 x 18 Avon tyre
• Suspension gaiters front and rear, black or red
• Cibie light unit
• Chrome plated chaincase, chainguard, battery box and oil
• The following choice of colours are available:- red, yellow, racing green, silver or blue tank

Gearbox