Poulan PP1644JA User Manual - Page 23

SERVICE

AND

ADJUSTMENTS

TO

REPLACE

FUSE

Replace

with

30

amp

automotive

-type

plug-in

fuse.

The

fuse

holder

is

located

in

the

engine

compartment,

directly

in

front

of

the

dash.

TO

REPLACE

HEADLIGHT

BULB

•

Raise

hood.

•

Pull

bulb

holder

out

of

the

hole

in

the

backside

of

the

grill.

•

Replace

bulb

in

holder

and

push

bulb

holder

securely

back

into

the

hole

in

the

backside

of

the

grill.

•

Close

hood.

INTERLOCKS

AND

RELAYS

Loose

or

damaged

wiring

may

cause

your

tractor

to

run

poorly,

stop

running

or

prevent

it

from

starting.

•

Check

wiring.

See

the

electrical

wiring

diagram

in

the

Repair

Parts

section

of

this

manual.

TO

REMOVE

HOOD

AND

GRILL

ASSEMBLY

(See

Fig.

34)

•

Lift

hood.

Disconnect

headlight

wiring

connection.

•

Remove

wingnut

at

rear

of

each

side

panel.

•

Remove

retainer

springs

from

hood

pivot

brackets.

•

Pivot

hood

and

side

panel

forward

and

lift

off

tractor.

•

To

replace,

reverse

above

procedure.

•

WINGNUT

HEADLIGHT

WIRING

CONNECTION

FIG.

34

ENGINE

TO

ADJUST

THROTTLE

CONTROL

CABLE

(See

Figs.

35

&

36)

The

throttle

control

has

been

preset

at

the

factory

and

adjustment

should

not

be

necessary.

Check

adjustment

as

described

below

before

loosening

cable.

If

adjustment is

necessary,

proceed

as

follows:

•

With

engine

not

running,

move

throttle

control

lever

to

fast

(4)

position.

•

Check

that

speed

control

lever

is

against

stop

screw.

If

it

is

not,

loosen

casing

clamp

screw

and

pull

throttle

cable

until

lever

is

against

screw.

Tighten

clamp

screw

securely.

TO

ADJUST

CARBURETOR

(See

Fig.

37)

The

carburetor

has

been

present

at

the

factory

and

adjust-

ment

should

not

be

necessary.

However,

minor

adjustment

may

be

required

to

compensate

for

differences

in

fuel,

temperature,

altitude

or

load.

If

the

carburetor

does

need

adjustment,

proceed

as

follows:

In

general,

turning

the

adjusting

needles

in

(clockwise)

decreases

the

supply

of

fuel

to

the

engine

giving

a

leaner

fuel/air

mixture.

Turning

the

adjusting

needles

out

(coun-

terclockwise)

increases

the

supply

of

fuel

to

the

engine

giving

a

richer

fuel/air

mixture.

IMPORTANT:

DAMAGE

TO

THE

NEEDLES

AND

THE

SEATS

IN

CARBURETOR

MAY

RESULT

IF

SCREW

IS

TURNED

IN

TOO

TIGHT.

PRELIMINARY

SETTING

-

•

Be

sure

you

have

a

clean

air

filter,

and

the

throttle

control

cable

is

adjusted

properly

(see

above).

•

With

engine

off

turn

idle

fuel

adjusting

needle

in

(clock-

wise)

closing

it

finger

tight

and

then

turn

out

(counter-

clockwise)

1-1/4

turns.

•

Turn

main

fuel

adjusting

needle

in

(clockwise)

closing

finger

tight

and

then

turn

out

(counterclockwise)

1

turn.

FINAL

SETTING

-

•

Start

engine

and

allow

to

warm

for

five

minutes.

Make

final

adjustments

with

engine

running

and

shift/motion

control

lever

in

neutral

(N)

position.

•

With

throttle

control

lever

in

fast

(4)

position,

turn

main

fuel

adjusting

needle

in

(clockwise)

until

engine

begins

to

die

then

turn

out

(counterclockwise)

until

engine

runs

rough.

Turn

needle

to

a

point

midway

between

those

two

positions.

•

Idle

speed

setting

-

With

throttle

control

lever

in

slow

(ift)

position,

engine

should

idle

at

1400

RPM.

If

engine

idles

too

slow

or

fast,

turn

idle

speed

adjusting

screw

in

or

out

until

correct

idle

is

attained.

•

Idle

fuel

needle

setting

-

With

throttle

control

lever

in

slow

(ift)

position,

turn

idle

fuel

adjusting

needle

in

(clockwise)

until

engine

begins

to

die

and

then

turn

out

(counterclockwise)

until

engine

runs

rough.

Turn

needle

to

a

point

midway

between

those

two

positions.

•

Recheck

idle

speed.

Readjust

if

necessary.

23

Poulan PP1644JA User Manual - Page 23

Replace, Headlight, Interlocks, Relays, Remove, Grill, Assembly, Adjust, Throttle, Control, Cable,

Page 23 highlights