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Matchless - G80 (L F Harris) 87-94

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Bike Description and General information
Les Harris produced the G80 after John Bloor took back the right to Build the Bonneville. Very underrated Bike with lively Rotax engine design by Brian Jones. Part Bin or Class ? Grimeca hubs, Paioli forks, twin Brembo discs and a Dell’Orto carburettor. Twin Disc and Electric Start option added late 87. limited production to special order after 1989.

Service Infromation
Front Fork Oil cc (right leg) : 180cc
Front Fork Oil cc (left leg) : 180cc
Valve Clearance Cold - Inlet : 0.05 mm
Valve Clearance Cold - Exhaust : 0.05 mm
Tyre Pressure Front Bar / psi : 25psi
Tyre Pressure Back Bar / psi : 32psi
Engine Oil Grade SAE : 15W/40
Engine Oil Classification API : SF / SG
Engine Oil quantity with filter (litres) :
Engine Oil quantity with filter (litres) : 2.5
Engine Oil quantity (litres) : 2.5
Spark Plugs Gap (mm) : 0.7

Matchless G80 (L F Harris) 87-94 Parts & Accessories

Brakes
Front Disc
Front Disc Size 260 mm
Front-Pistons-per-caliper 2
Rear Drum
Rear Drum Size 160mm
Brake fluid SAE J.1703 or DOT3
Dimensions
Seat Height 787mm
Wheelbase 1372 mm
Dry Weight 150 kgs
Fuel Capacity 15 litre
Electrics
Voltage 12v
Main Fuse 15A
Ignition Breakerles C.D.ignition system(Nippondenso)
Charging System Alternator 190W
Spark Plugs D8EA
Spark Plugs (Iridium) DR8EIX
Bulb-Headlight Halogen 60/45w
Battery 5Ah(14Ah with Electric starter)
Ignition Timing 29° at 6000rpm
Engine
Type Air Cooled 4 Stroke SOHC Single
Bore x Stroke 89 x 79.4 mm
Compression Ratio 9.2:1
Displacement 494 cc
No. of Valves 4
Lubrication System Dry Sump oil in frame tube
Starting Kick ( Electric as cost option )
Carburation Dellorto type PHF 36-B5
Carburation Main Jet 120
Fuel Minimum Octane Rating 97(4Star)
Red line RPM 7000rpm
Transmission
Gear Ratio 1st 15.89
Gear Ratio 2nd 10.93
Gear Ratio 3rd 7.65
Gear Ratio 4th 6.10
Gear Ratio 5th 4.98
Clutch Type Wet
Sprocket front 20T
Sprocket rear 46T
Final Drive Chain
Chain type 5/8"pitch×3/8"wide
Chain Number of Links 104 Links
Transmission 5 Speed
Misc.
Motorcycle Style ROADSTER
Colour Options Black with Gold Detail or Silver with Red Detail
Exhaust 2 into 1
Place of Manufacture Newton Abbot, Devon, England, UK
Number Produced 860 (364 with Electric Start)
Power
Max Power Output 34 bhp 25 kw
Suspension
Front Adjustable Anti Dive Telescopic forks
Rear Twin Shock
Tyres
Front 100/90-19
Rear 110/90-18
Wheels
Front 19 inch spoked
Rear 18 inch spoked
 

All information is to the best of the Motorbike specs knowledge at the given time, the information is intended only as a guide.

A major japanese manufacturers quote:

We reserve the right to vary our specification with or without notice and at such time and in such manner as we think fit.

 
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