AJS Motorcycles

Pitmans Book of the AJS

The BOOK of the A.J.S.

THE MOTOR-CYCLIST'S LIBRARY

The BOOK of the A.J.S.

W. C. HAYCRAFT

A COMPLETE GUIDE FOR OWNERS AND PROSPECTIVE PURCHASERS OF A.J.S. MOTOR-CYCLES

BY DEALING WITH EVERY PHASE OF THE SUBJECT, INCLUDING CHAPTERS ON DRIVING, TOURING, PRELIMINARIES, I.C. ENGINE THEORY, TRACING FAULTS, AND OVERHAULING

THIRD EDITION

LONDON

SIR ISAAC PITMAN & SONS, LTD.

1933

PREFACE

WORLD-WIDE trade depression during 1931 has resulted in several firms being taken over by new proprietors. On going to Press with the Third Edition of this little handbook, the author finds that the firm of Messrs. A. J. Stevens & Co., Ltd., no longer exists, the whole of their goodwill and equipment having been taken over by the well-known Matchless concern (Messrs. Colliers, Ltd., of Plumstead). It is the intention of this firm to carry on the manufacture of A.J.S. machines of exactly the same high quality as have issued from the Wolverhampton concern. During the 1932 season a limited programme is available, comprising four overhead-valve and two side-valve models. Series "T," as these machines are known, are dealt with in the present edition. They are rather similar but improved versions of the 1931 "S" series. It will be observed that series "T" includes no "cam-shaft" models, but speedman and racing enthusiasts will be delighted to learn that the famous and successful "camshaft" models, on one of which Denly attained a speed of 118 98 m.p.h, at Arpagon in France, will be reintroduced as soon as the new firm has completed its reorganization of the A.J.S. manufacturing equipment now transported bodily to Plumstead. A.J.S. Big Twins will also be revived. Series " T" will be continued practically unaltered for 1933, and hence this edition will remain quite up to date until 1934. The author has retained many useful notes for the benefit of owners of 1929-31 models, but he does not propose to deal at any length with the "camshafts," as these machines are primarily designed for racing and competition purposes and thus outside the intended sphere of this handbook. It is only fair to conclude by mentioning that the author has no present or past connection with Messrs. A.J.S. Motor Cycles (Colliers), Ltd., to whom he is greatly indebted for supplying information and photographs. As hitherto, the author's advice is at the disposal of readers who care to write to him c/o the Publishers. W. C. H.

CONTENTS

PREFACE ....

THE A.J.S. SERIES

VARIOUS PRELIMINARIES

DRIVING HINTS AND TIPS

RUNNING COSTS AND TOURING

HOW THE ENGINE WORKS

FAULTS : THEIR LOCATION AND REMEDY

OVERHAULING

INDEX

AJS 1932-1933 Models

T5 SV

T6 TB6 OHV

T8 TB8 OHV

T9 4.98 H.P SV

990 SV 1933

Trophy Camshaft Models