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Dunstall Motorcycles
1969 Dunstall Norton Export

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1969 Dunstall Norton Export

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 9" hydraulic disc front brake
  • Swept back, balanced exhuast system
  • "Decibel" silencers
  • Rear mounted footrest and controls
  • De-Luxe or G.T. fairing (choice of colours)
  • 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)
  • Grand Prix, Manx or glass-fibre mudguard (choice of colours)
  • Clip-on handlebars
  • Alloy ball-ended control levers
  • Steering damper assembly
  • Alloy fork top yoke
  • Alloy wheel rims
  • Avon G.P. rear tyre
  • Front fork and suspension gaiters
  • Chromium plated chaincase, chainguard, oil tank and battery box
  • The following choice of colours are available:- red, yellow, racing green, silver or blue

Gearbox

Four Speed
Semi Close Ratio
Alternative
Ratios
Gear Ratio Speed Gear Ratio Speed
Top 4.22 131 mph Top 4.53 124 mph
Third 5.14 109 mph Third 5.50 104 mph
Second 7.12 78 mph Second 7.65 74 mph
First 10.75 52 mph First 11.50 49 mph

www.woodgate.org/dunstall/69nor3.html / Webmaster / Revised 24th February 2000