NSU Supermax - Specific Adjustments and Preparations; Valve Clearance Adjustment; Periodical Inspections and Lubricants

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Periodical Lubrication

and

Inspection

Adjusting the Valve

Clearance

The

clearance

between

the

spherical

end

of

the

adjust-

able

tappet

and

the

valve

stem should

amount

to

0.002" in

the

case

of

the

inlet

valve

0.004" in

the

case

of

the

exhaust

valve

Use a

feeler

gauge

to check this

clearance

..

Adiust~ents

should

be

made

with

the

engine

cold

and

with

the

piston

at

TDC

on

the

firing stroke. The pinch

bolt

o~

the

rocker

arm,

which must

be

slackened

off

when

making

the

ad-

justment, must

be

well tiQhtened

ul?

again

to

prevent

the

adjustable

tappet

working

loose

In

service.

Adjust

clearance

Slacken locking

screw

Tighten locking

screw

Every

conscientious

rider

will

keep

his

machine

in

"a

r~adworthy

condition,

~n~

so

will

pay

particular

atten-

tion

to

the

proper

functioning

of

the

brakes.

We

consider

it

advisable

that

the

operation

of

the

brakes

be

checked

before

every

journey.

See

page

43/44.

Every

four

weeks

check

the

battery

and

have

it

charged

if

necessary.

Every 600 miles check

the

chain

tension

and

adjust

if

necessary.

Every 1,200 miles Check

valve

clearance,

adjust

if neces-

sary,

see

page

64. Check

the

clutch adjust-

ment,

make

certain

that

all

important

nuts

and

bolts

are

tight. The

principal

ones

are:

the

cylinder

and

cylinder

head

bolts (only with

engine

cold);

the

nuts

on

the

wheel

spindles

and

the

pinch bofts

on

the

front-fork

swinging

orms;

the

handlebar,

silencer

and

chain

guard

mountings

and

the

electric

cable

connec-

tions,

and

the

sidecar

connections

if

one

is

fitted.

j

Every 2,400 miles check

the

sparking

plug

gap

(see

page

59).

Clean

the

plug if

necessary.

Check

the.

play

in

the

steering

head

bearing

and

adjust

It

for

free

movement, but without

perceptible

play.

(When

the

machine

is

on the

stand

and

the steer-

ing

damper

is

completely

slackened,

the front

forks

after

..

being

put

practically

into

their

central

position must

return

fo

the left

or

right

lock).

Every 4,000 miles

clean

the

generator,

check

the

contact

breaker

gap

(see

page

57). Check

the

electric

cables

and

their

connections.

Tighten

the

terminal

screws.

About

every

6,000

to

10,000 miles

renew

the

sparking

plug.

64

65

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