TROUBLESHOOTING CHART:

See appropriate section in manual unless directed to Sears service center

PROBLEM

 

 

CAUSE

 

 

 

 

 

 

 

 

CORRECTION

 

 

 

 

 

Engine

clicks but

1

Weak

or

dead

battery.

 

1

Recharge

or

replace

battery.

will

not

start

2

Corroded

 

battery

 

terminals.

 

2

Clean

 

battery

terminals.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Loose

or

damaged

 

wiring.

 

3

Check

 

all

wiring.

 

 

 

 

 

 

 

 

 

4

Faulty

solenoid

 

or

starter.

 

4

Check/replace

 

solenoid

or

starter.

Loss of power

1

Cutting

too

much

grass/too

fast.

1

Raise

cutting

height/reduce

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

speed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Throttle

in "CHOKE"

position.

2

Adjust

 

throttle

control.

 

 

 

 

 

 

3

Build-up

 

of

grass,

leaves

and

3

Clean

 

underside

 

of mower

 

 

 

 

 

 

trash

under

mower,

 

 

 

housing.

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Dirty

air

filter.

 

 

 

 

 

4

Clean/replace

 

air

filter.

 

 

 

 

 

 

5

Low oil

level/dirty

 

oil.

 

5

Check

 

oil

level/change

oil.

 

 

 

 

 

6

Faulty

spark

plug.

 

 

 

6

Clean

 

and

regap

 

or change

spark

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

plug.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

Dirty

fuel

filter.

 

 

 

 

 

7

Replace

 

fuel

filter.

 

 

 

 

 

 

 

8

Stale

or

 

dirty fuel.

 

 

 

8

Empty

 

fuel

tank

and refill tank wig-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fresh,

clean

gasoline.

 

 

 

 

 

 

 

9

Water

in fuel.

 

 

 

 

 

9

Empty

 

fuel

tank

and

carburetor,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

refill tank with fresh gasoline and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

replace

 

fuel

filter.

 

 

 

 

 

 

 

 

 

10

Spark

plug

wire

loose.

 

10

Connect

and

tighten

spark

plug

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wire.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

Dirty

engine

air

screen/fins.

 

11

Clean

 

engine

air

 

screen/fins.

 

 

 

 

 

12

Dirty/clogged

muffler.

 

12

Clean/replace

 

muffler.

 

 

 

 

 

 

13

Loose

or

damaged

 

wiring.

 

13

Check

 

all

wiring.

 

 

 

 

 

 

 

 

 

14

Carburetor

out

of adjustment.

14

See

"To Adjust

Carburetor"

in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Service

 

and

Adjustments

section.

 

 

 

 

15

Engine

valves

out

of adjustment.

15

Contact

 

a Sears

 

or

other qualified

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

service

 

center.

 

 

 

 

 

 

Excessive

vibration

1

Worn,

bent

or

loose

blade.

 

1

Replace

 

blade.

Tighten

blade bolt

 

 

 

 

2

Bent

blade

mandrel.

 

 

2

Contact

 

a Sears

 

or

other

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

qualified

service

 

center.

 

 

 

 

 

 

3

Loose/damaged

 

part(s).

 

3

Tighten

 

loose

part(s).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace

 

damaged

parts.

 

Engine

continues t¢

1

Faulty

operator-safety

presence

1

Check

 

wiring,

 

switches

and

 

run

when

operator

 

control system,

 

 

 

 

 

 

connections.

If not corrected,

leaves

seat with

 

 

 

 

 

 

 

 

 

 

 

 

contact a Sears or other

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

attachment

clutch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

engaged

31

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Craftsman YT 4500, 917.28990 manual Will, Loss of power, Excessive, When Operator, Leaves
Page 30 Page 32

YT 4500, 917.28990 specifications

The Craftsman 917.28990 YT 4500 is a robust lawn tractor that combines power and performance with comfort and ease of use, making it an ideal choice for homeowners with medium to large yards. With its impressive features and innovative technologies, this machine stands out in the competitive landscape of lawn care equipment.

At the heart of the Craftsman YT 4500 is a powerful 24 HP Kohler engine. This engine delivers reliable performance, ensuring that the tractor can tackle a variety of tasks from mowing to hauling and even towing. With a 42-inch cutting deck, the YT 4500 effectively maneuvers through tight corners and delivers a clean, professional-looking cut on your lawn.

One of the standout features of the Craftsman YT 4500 is its hydrostatic transmission, which provides effortless control and smooth operation. This technology allows users to change speed and direction easily without the need for constant gear shifting, enhancing the user experience, especially over extended periods of use.

The tractor also boasts a comfortable high-back seat with adjustable features, providing ample support during long mowing sessions. The ergonomically designed steering wheel allows for easy maneuverability, making it suitable for users of all sizes.

To improve efficiency, the YT 4500 is equipped with a cutting height adjustment feature, allowing users to select from multiple cutting heights to accommodate various grass types and conditions. This flexibility ensures optimal results year-round.

Additionally, the Craftsman 917.28990 includes a mulching feature, which finely chops grass clippings and returns them to the lawn as natural fertilizer, promoting a healthier lawn while reducing the need for bagging clippings. For those requiring extra versatility, the tractor is compatible with various attachments, including snow plows, baggers, and more, enabling year-round tasks.

Overall, the Craftsman 917.28990 YT 4500 is an excellent investment for any homeowner seeking reliability, comfort, and versatility in a lawn tractor. Its combination of power, advanced technologies, and thoughtful design ensures that lawn care can be both efficient and enjoyable. Whether you are tackling a simple mow or an extensive landscaping project, the YT 4500 proves to be a valuable addition to your outdoor equipment lineup.
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