leco P-1 - Page 16

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Spark

Plug

If

the

spark

plug

electrode

area

has

an

excess

of

carbon

buildup,

the

efficiency

of

the

plug

will

be

seriously

reduced.

REMOVE

THE

CARBON

WITH

A

SPARK

PLUG

CLEANER

OR

WIRE

BRUSH.

After

cleaning

the

spark

plug

RESET

THE'EleCTRODE

GAP

TO

0.6/0.7

mm

(.024"

.028").

Recommended

spark

plug:

NGK

BM7A

Champion

CJ4

or

CJ6

Magneto

The

gap

between

the

coil

and

the

flywheel

should

be

0.4

to

0.5

mm.

Carburetor

S/N

78001

thru

S/N

78001304

Proper

adjustment

of

the

carburetor

is

very

important

to

the

operation

of

this

engine,

The

carburetor

has

been

carefully

adjusted

at

the

factory

and

therefore

should

not

require

any

further

adjustment.

If

the

carburetor

should

require

adjustment

follow

the

instrction

in

the

Carburetor

Service

Manual,

page

53.

Carburetor

S/N

78001305

up

Adjusting

Idling

RPM

When.

the

adjusting

screw

is

turned

right,

the

engine

RPM

increases,

and

when

it

is

ttirned

left,

RPM

decreases.

See

Figure

14.

Normal

Idling

RPM

3100

*.

100

rpm

NOTE:

The

carburetor

greatly

affects

the

operating

conditions

of

the

engine.

Since

it

has

been

adjusted

carefully

at

the

factory

before

shipment,

avoid

adjusting

it

unless

absolutely

necessary.

If

adjustments

are

needed,

contact

your

nearest

engine

dealer.

See

Figure

14.

ADJUSTING

SCREW

Figure

14

16