Norton 850 Mk 1 1974, Service Notes, Page: 3 / 48

CONTENTS
Introduction and Spares Officers 2
Engine numbers-model changes 3
Group 1 :--
Crank assembly including pistons, camshaft and timing
gear.
4
Group 2:-- Barrels, gaskets and head parts. 7
Group 3: --
Timing cover, all therein and rocker feed.
10
Group 4:--
Crankcases, breathing and main bearings.
13
Groups 5, 6, 7:--
Gearbox.
15
Group 8:--
Primary case and clutch.
18
Group 9:--
Carburetors.
21
Group l0:--
Engine mountings.
22
Group 11:--
Frame. swinging arm and suspension.
24
Group I2:--
Footrest plates.
27
Group 13:--
The oil tank.
28
Groups !4, 15, 16:--
Forks and front wheel.
29
Group 17:--
Rear hub, brake and sprocket.
30
Group 18:--
Handlebar controls.
31
Groups 19, 21-24, 28:--
Handlebars, side panels, front mudguard, scats, rear
mudguard, tanks and instruments.
32
Group 20:--
Exhaust systems.
32
Groups 25, 26, 27:-- Electrics. 32
Group 29:--
The tool kit.
32
Addendum 33
Further model changes 33
Engine, main bearings, timing chest contents, ex valves 34
Pushrods Primary chain case, Clutch slip 34
Clutch drag, Alternators, Electric start 35
Gearbox, Kick start pawl, The pawl spring 36-37
Go-faster mods etc. wheels and brakes, Frame parts and handling 38
Service Release N3,13 Camshafts 39
Some tuning tips 40
Carburetor setting 41
Carburetion 42
Oil 43
The Norton Owners Club 1979. All rights reserved. No part of this publication may be reproduced, stored
in a retrieval system, or transmitted in any way or form or by any means, electronic, mechanical,
photocopying recording or otherwise, without the prior permission of the Norton Owners Club. So there! ©
Addendum 1980