REPAIR PARTS

12 HP 38" TRACTOR - - MODEL NUMBER 917.255561

BRIGGS & STRATTON ENGINE - MODEL NUMBER 283707, TYPE NUMBER 0217-01

KEY

PART

 

 

 

 

 

 

 

 

KEY

PART

 

 

 

 

 

 

 

 

 

NO.

NO,

DESCRIPTION

 

 

 

 

NO.

NO.

 

DESCRIPTION

 

 

1

490450

Cylinder

Assembly

 

 

53

94637

 

Stud,

Carburetor

Mounting

2

399265

Bearing,

 

Cylinder

(Requires

Special

75

224061

 

Washer,

Spring

 

 

 

 

Tools

For Installation)

 

78

93805

 

Screw,

Sems

 

 

 

3

391086

* Seat, Oil

 

 

 

 

 

95

94098

**

Screw,

Throttle

 

 

5

494240

Head, Cylinder

 

 

 

 

98

494382

**

Screw,

Idle Speed

7

271866

* Gasket,

Cylinder

Head

 

104

231789

Pin, Float Hinge

 

8

391406

Breather

Assembly

 

 

105

231790

**Valve

Assembly,

Inlet Needle

9

27803

* Gasket,

Valve

Cover

 

106

281t69

 

Inlet, Valve

Seat

 

10

93394

Screw,

Sems

 

 

 

 

108

224540

 

Valve,

Choke

 

 

 

11

280100

Tube,

Breather

 

 

 

 

118

494383

**Valve,

Needle

 

 

12

271916

* Gasket,

Crankcase

Cover

1/64"

121

494384

 

Carburetor

Overhaul Kit

 

271997

* Gasket,

Crankcase

Cover

.005"

123

94616

 

Screw,

Elbow

Mounting

 

271996

*Gasket,

Crankcase

Cover

.009"

125

494502

 

Carburetor

Assembly

13

93723

Screw,

Cylinder Head

 

127

- - -

** Plug, Welch

(Sold in Kit Only)

15

94239

Plug,

Oil Drain

 

 

 

 

130

224539

 

Valve,

Throttle

 

 

16

490466

Crankshaft

 

 

 

 

131

494379

 

Shaft

and Lever,

Throttle

 

94196

Key, Timing Gear

 

 

133

494381

 

Float,

Carburetor

 

18

494238

Base,

Engine

 

 

 

 

137

281165

*** Gasket,

Float Bowl

20

291675

* Seat, Oil

 

 

 

 

 

138

281164

*** Washer,

Float Bowl Screw

22

94305

Screw,

Sems,

Base Mounting

141

494380

** Shaft and Lever, Choke

23

492326

Flywheel and Ring Gear Assembly,

142

494537

** Nozzle

/ Jet,

Carburetor

 

 

Magneto

 

 

 

 

 

 

494499

 

High Altitude

Kit:

 

24

222698

Key, Flywheel

 

 

 

 

 

 

 

231796

Pilot,

Jet, High Altitude

25

394661

Piston

Assembly,

Standard

 

 

 

 

281164

Seal,

Bowl Screw

 

394662

Piston

Assembly

.010" Oversize

147

231794

** Pilot,

Jet

 

 

 

 

 

394663

Piston Assembly

.020" Oversize

164

213819

 

Carburetor,

Elbow

 

394664

Piston Assembly

.030" Oversize

171

281051

 

Nut, Air Cleaner

Mounting

26

391780

Ring Set,

Piston,

Standard

Size

187

393815

 

Line,

Fuel

 

 

 

 

 

392331

Ring Set, Piston,

Chrome,

Standard

188

93535

 

Screw,

Sems

 

 

 

 

391781

Ring Set,

Piston

.010" Oversize

201

262767

 

Link,

Governor

 

 

 

391782

Ring Set,

Piston

.020" Oversize

209

260871

 

Spring,

Governor

 

 

391783

Ring Set,

Piston

.030" Oversize

216

262766

 

Link,

Choke

 

 

 

 

27

260924

Lock,

Piston Pin

 

 

 

219

490815

 

Oil Slinger,

Governor Gear and

28

299691

Pin Assembly,

Piston, Standard

 

 

 

Bracket

Assembly

 

391286

Pin Assy,, Piston

 

.005" Oversize

222

494887

 

Plate,

Governor

Control

29

490348

Rod Assembly,

Connecting

 

 

 

 

(Choke-A-Matic)

 

 

490469

Rod Assembly,

Connecting,

 

224

94513

 

Screw,

Sems,

Air Cleaner

 

 

.020" Undersize

Crankpin Bore

225

231058

 

Crank,

Governor

 

31

222299

Lock,

Connecting

Rod Screw

227

493935

 

Lever Assembly,

Governor

32

92909

Screw,

Connecting

Rod

 

230

222450

 

Washer, Governor Crank

33

262246

Valve,

Exhaust

 

 

 

 

232

262785

 

Spring,

Governor

Link

34

262247

Valve,

Intake

 

 

 

 

240

394358

 

Filter,

Fuel

 

 

 

 

35

65906

Spring,

Intake Valve

 

 

 

 

 

 

 

 

 

 

 

 

36

26828

Spring,

Exhaust

Valve

 

*

Included

in Gasket Set

(494241)

 

37

223752

Guard,

Flywheel

 

 

 

 

40

221596

Retainer,

Intake Valve

 

**

Included

in Carburetor

Overhaul

Kit (494384)

41

292260

Rotocoil,

Exhaust

Valve

 

***

Included

in both

Carburetor

 

Overhaul Kit (494384)

42

93630

Retainer,

Exhaust

Valve Rotocoit

 

and Carburetor

Gasket

Set

(494385)

45

262248

Tappet,

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46

212897

Gear, Cam

 

 

 

 

NOTE: All component

dimensions

 

given in U°S, inches

51

272465

*** Gasket,

Carburetor

(Carburetor to

 

52

270872

Elbow)

 

 

 

 

 

 

 

1 inch = 25.4

mm

 

 

 

 

 

 

* Gasket,

Carburetor

(Elbow

to

 

 

 

 

 

 

 

 

 

 

 

Cylinder)

47

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Image 47
Craftsman 917.255561 Briggs & Stratton Engine Model Number 283707, Type Number, Part KEY Description, Valve, 005, Ring Set