Royal Enfield CRUSADER 250 Manual de usuario

RoyalEnfield

CRUSADER

TECHNICAL

DATA

250

CLIPPER

CRU

SAD

250

SPORTS

FOR 1960 MODELS

Engine

type

...

Four-stroke

Fou

r-stroke

Four-stroke

Number

cylinders 1 o.h.v. 1 o.h.v., 1 o.h.v.

Cylinder head

Cast

iron

light

alloy*

light

alloy

Cubic capacity (c.c.) 248 248 248

Bore and

stroke

(mm.)

70x64·5

70 x64·5 70 x64·5

Compression

ratio

7·5

1 8

1 8·5

B.H.P. x R.P.M. 13

5,750

13!;-

5,750 17

6,250

Carbu

rettor

...

Amal Monobloc Amal Monobloc Amal Monobloc

Lighti

and chargi

set

Lucas A.C. Rectifier Lucas A.C. Rectifier Lucas A.C. Rectifier

Ignition D.C. Coil D.C. Coil D.C. Coil

Primary

è~ive

chain ... i" pitch i" pitch i" pitch

Final

drive

chain

!;-"

pitch

!;-

" pitch kH

pitch

-Pivoted fork Pivoted

fork

Pivoted

fork

Rear suspension hydraulic damping hydraulic damping hydraulic damping

Telescopic Telescopic Telescopic

Front

fork

automatic

lubrication

automatic

lubrication

automatic

lubrication

Hubs:

Front

light

alloy full width

light

alloy full width

light

alloy full

width

Rear Standard

Q.D. Q.D.

Gear

ratios (solo) 6·14. 8·29,

0.5,

18·0 6·14, 8·29, 11·05, 18·0 6·14, 8·29, 11·05, 18·0

Tyre

sizes:

Front, Dunlop ribbed (ins.) 3.25 X17 3·25 x17 3·25 x17

Rear, Dunlop

studded

(ins.) 3·25 x17 3·25 x17 3·25 x17

M.P.H.

per

1,000 r.p.m. in

top

gear 11·3

·3

Approx.

maximum speed (m.p.h.)

...

70 70 75-80

Approx.

petrol

consumption

(m.p.g.) 100 100 95

Petrol

tank

capacity (gallons) 3 3

);!

Oil

tank

capacity (pints) 3 3 3

Brake

diameter

and

width:

Front

(ins.) 6 x 1 6 x 1 7 x

1!;-

Rear (ins.) ... 6 x 1 6 x 1 6 x 1

Seat height

approx.

(ins.) 29 29 29

Wheelbase

(ins.)

52 52

Overall

width

(ins.) ...

25!

25!;-

Ground

clearance (ins.)

51. 51.

2 2 2

Weight

(lbs.) 300 305 305

Equipment Stop light Stop light

Air

cleaner

*Cast iron on

Crusade

"Airflow"

INSTRUCTION BOOK

for

the

1951-s8-s9-60 "CRUSADER 250"

1958-59-60 "250 CLIPPER"

and

1959-60 "CRUSADER SPORTS"

MOTOR

CYCLES

THE

ENFIELD

CYCLE COMPANY

LIMITED

Head

Office

and Works :

REDDITCH, WORCESTERSHIRE

Telegrams: Telephone:

"Cycles, Phone, Redditch" Redditch 4222

fines)

ILLUSTRATIONS

Fig. No. Description Page

Plan

Controls 5

2 Exploded View

Felt Oil Cleaner

3 Valve Clearance Adjustment

4 Timing Chain Adjustment

5 Clutch Adjustments

6 Exploded View

Hub

7 Reassembly

Cush Drive

Rear

Wheel Adjustment

9 Section

Front

Fork

10 Steering Head Adjustment

Removal

Rear Mudguard

Unit

CONI'ENI'S

Page Page

Foreword 4 Reassembly

Engine after

Decarbonising

OPERATION

THE

Valve Clearances

MOTOR

CYCLE

Engine Bearings

Con

trois 4 Removal and Dismantling

Starting the Engine 6 Engine

...

Timing Chain Adjustment

Start

the

Machine 7

Driving Hints 7 Valve Timing

Running-in 8 Ignition Timing

...

· Sparking Plugs

Lighting Set

LUBRICATION

Carburettor

Lubrication

the Engine 9 Air Cleaner

Lubrication Routine for the

Engine 9 TRANSMISSION

Felt Oil Filter

Multi-grade Oils

Enfield Four-Speed Gear

Detergent Oils

Clutch

Lubrication

the Gearbox ...

Adjustment

Clutch Contrai

Lubrication

Chains •

Quickly Detachable Rear

Hub

Grease

Gun

Lubrication

Adjustment

Chains

Lubrication

the

Front

Fork

FRONT

FORK

TROUBLE

THE

ROAD Construction ...

Engine Stops owing

tci

Jack

.Steering Head

Petrol

Engine Misfires

Stops

REAR

SUSPENSION

owing

Faulty Ignition ...

Other

Causes

Engine Stop- ·

page

. MISCELLANEOUS

Clutch Trouble

Removal

Front

Wheel

OVERHAULING

THE

Removal

Rear

Wheel

ENGINE

Removal

ar Mudguard

Unit...

Decarbonising

Fitting a New Rear Chain

Removal

Cylinder Head

Removal

Tyres

Remo

val

Cylinder and Expanding

Hub

Brakes

Pistop ...

Wheel Bearings

Removal

Valves

Cleaning

Reinoval

Carbon ...

"Dont's"

for Drivers

Grinding-in Valves

...

i8 Guarantee

•,- .

"Crusader

250,"

"250

Clipper"

and

Crusader

Sports

Foreword.

These

248

c.c.

O.H.V. models incorporate the

latest advances in modern motor cycle practice. The

short-stroke,

mm. boreX

·5 mm. stroke engine is

unit construction, the four-speed foot-operated gear-

box and oil tank being integral with the crankcase.

has dry sump lubrication, completely enclosed, and

lubricated valve gear and a very rigid one-piece, high

strength cast iron crankshaft. The complete engine and

gearbox, except for the crankshaft and connecting rod,

can be dismantled without removal from the frame.

A.C. generator enclosed within the off-side crankcase

cover supplies current for lights and ignition coil. The

ignition switch, coil and battery are grouped together in

one box which also has compartments for

air filter

and tools. Pivoted fork rear suspension and telescopic

front forks provide a high degree

comfort and

road

holding. The headlamp, speedometer, ammeter

and

lighting switch are built into the "Casquette" which

shrouds the top

the front forks.

Other items are full-width aluminium-alloy quickly

detachable rear hub on the two "Crusader" machines,

incorporating the Royal Enfield cush drive, full-width

aluminium-alloy front hub, 3·25" X

17"

tyres and fully

enclosed rear chain.

Legshields and pannier equipment, specially de-

signed to fit this machine, are available as extras.

OPERATION OF TIIE MOTOR CYCLE

2 Controls. A rider should familiarise himself with

the positions and method of operation of the various

controls so that their use becomes automatic. The

controls are shown diagrammatically on page

and

in most cases the method of operation

obvious. The

following notes may, however, be of assistance: -

"CRUSADER

"250

CLIPPER"

AND

"CRUSADER

SPORTS"

CLUTCH

DIPPER

REAR BRAKE

IGNmo'

TGe'

)

TOOL

BOX

KICK STARTER

Fig.

1.-Plan

Controls.

BRAKE

Gear Control.

Move up for change to a lower gear.

Move down for change to a higher gear. A small pointer

on the outside

the crankcase cover indicates which

gear

engaged, neutral

between first and second gears.

Kickstarter.

Operate with a long swinging kick.

Lighting Switch.

Position " L " gives headlamp

pilot bulb. tail lamp and speedometer light. Position

"H"

gives headlamp main bulb, tail lamp and

speedometer light. A dipper switch on the handlebar

"CRUSADER

250," "250

CLIPPER"

AND

"CRUSADER

SPORTS"

determines whether the main bulb

gives

a horizontal or

a dipped beam.

Ignition Switch.

Situated in the nearside toolbox

cover. Ignition

off

with the key in a vertical position.

Turn key clockwise for normal ignition, anti-clockwise

for emergency ignition. The emergency position

used

when the battery has become discharged; when the

engine has started, move the switch to the normal

position.

Petrol Filler.

open, turn to left till catch

felt,

push down and turn again to left

far as possible, then

lift

off.

To close, push down and turn to right as far

as possible.

Oil Filler.

On engine crankcase. Operates the

same way as petrol tiller.

Petrol Tap.

open, push hexagon end.

close,

push round end. A small lever above the petrol tap,

when turned clockwise, retains a reserve supply of fuel.

the reserve fuel

needed, turn the lever anti-clockwise.

The following contrai

not

shown in the

diagram:-

Carburettor Tickler.

On top of float chamber.

Depress to increase fuel supply before starting from cold.

3 Starting the Engine.

Fill the tank with petrol and

the oil tank in the engine crankcase with oil. Always use

one of the oils recommended in Section

Turn on the

petrol. Depress the tickler of the carburettor once or

twice

until petrol can be felt in the float chamber,

but

do not flood the carburettor.

Place the gear control in

the neutral position, close the air lever, open the throttle

control about one-eighth, and smartly depress the kick

starter.

the engine fails to tire first or second time,

repeat with a slightly different throttle opening. The best

position for starting will soon be found from experience.

When starting a warm engine, do not flood the

carburettor or the mixture will become too rich.

Should any difficulty be found in kicking the engine

over, put the machine in gear and gently wheel the

machine backwards a

few

inches until compression can

"CRUSADER

250," "250

CLIPPER"

AND

"CRUSADER

SPORTS"

felt. Put the gear in neutral then administer a good

swinging kick to the starter pedal.

4 To Start the Machine. Pull up the clutch lever.

Engage the lowest gear by pressing the foot control up

far as possible and then releasing it. Slowly release

the clutch lever, at the same time accelerating the engine

opening the throttle slightly and the machine will

move away without jar or jerk. When the machine bas

attained sufficient speed (about

m.p.h.) de-clutch,

the same time closing the throttle and changing to second

gear by pressing the foot control downwards as far as it

will

go and then releasing it. Let in the clutch gradually

and open the throttle again until the speed of the machine

sufficient to require a change into third gear (about

m.p.h.), when the foregoing operations are repeated.

Finally, change up to top gear when sufficient speed has

been attained in third (about

m.p.h.).

Note. The above speeds are intended only as a

rough guide for making a normal get-away on a level

road. When starting up a steep hill rather higher speeds

should be used in the intermediate gears.

Once top gear

engaged and the machine

nmning

at a comfortable speed, the air lever should be fully

opened.

5 Driving Hints. For normal running on the level the

air lever can be left fully open, the speed being controlled

the throttle, but when accelerating or climbing a hill

it may be necessary, especially while the engine

cold.

partly to close the air lever

order to prevent "pinking"

or knocking.

Never allow the engine to labour on a hill.

the

machine will not climb comfortably

top gear, change

down by de-clutching and moving the gear lever upwards

far as possible and then releasing it, leaving the

throttle control open during the change. When in the

lower gear, the air lever may be opened

suit the higher

engine speed.

a hill

long and steep enough to

demand a change

a lower gear, it

always desirable

to make this change before the engine has commenced

"CRUSADER

250," "250

CLIPPER"

AND

"CRUSADER

SPORTS"

to labour. One change low down may save two higher

up and at the same time enable a faster climb to

made.

stop the machine, close the throttle and apply

the brakes; lift the clutch as the machine cornes to rest.

The engine may be kept running with the clutch out,

the stop

of only short duration, but neutral should be

found

the engine

kept running for any length of

time.

stop the engine, switch

off

the ignition. Engines

are sent out from the Works with the carburettors set at

a tick-over rate.

is, of course, possible to set the

throttle stop to close the throttle completely, in which

case the engine

will

stop whenever the throttle

closed.

Note that the positions of the handlebars, footrests

and all controls (including the gear lever and the brake

pedal) are adjustable. A rider cannot have proper

control of

his

motor cycle unless he

comfortable and

the controls are conveniently situated. Riders should

set the controls to suit their individual requirements.

6 Running-in.

Ali Royal Enfield motor cycles have a

special oval formed piston which minimises the risk of

seizure with a

new

engine. Nevertheless, careful running-

highly desirable

the best results are to be obtained.

recommended, therefore, that a

new

machine

should not

driven at a speed exceeding

m.p.h. for

the first

200

miles, and, until at least

500

miles have

been covered, the throttle should not be opened above

half way, except for very short periods. After this

distance short bursts of speed are desirable in order to

hasten the bedding down of the thrust faces of the piston.

Gradually increase the duration of these speed bursts

until the machine will stand large throttle openings for

indefinite periods. Note the importance of progressively

increasing the work done by the engine. Running 1,000

miles at

m.p.h. will

not

bed down the piston to

enable it to withstand continuous high speed running.

Piston temperature

the important factor and this

depends not only on speed and throttle opening, but

also on how long that particular throttle opening bas

been sustained. Thus a machine after the preliminary

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