Manual

TRACTOR = MODEL NO. YTH2454 (287581) YTH 24 54
BRIGGS AND STRATTON ENGINE = MODEL NO. 445677=0479 E1
KEY
NO.
1
2
3
4
5
5A
7
8
9
10
11
12
13
15
15A
16
20
22
23
24
25
26
27
28
29
32
33
34
35
36
42
45
46
48
50
51
53
54
54A
73
74
75
89
95
98
1O4
1O5
108
117
117A
118
118A
PART
NO.
699753
499585
391086s •
699747
693998
693999
693997 "+
792185
690937 •
691108
690942
697227 •
791130
690946
691680
790132
690947 •
694966
691053
222698s
792117
792144
792026
792073
690975
690229
699699
690976
499596
697464
694865
694865
499586
690977
790562
698173
695241
791677 "O$
690951
695239
699816
494439
698425
691056
690283
690718
699721
694918 O
698537 O
699723
699732
699733
790890
699458
KEY PART
DESCRIPTION NO. NO. DESCRIPTION
Cylinder Assembly
Kit-Bushing/Seal (Magneto Side)
Seal-Oil (Magneto Side)
Sump-Engine
Head-Cylinder (Cylinder 1)
Head-Cylinder (Cylinder 2)
Gasket-Cylinder Head
Breather Assembly
Gasket-Breather
Screw (Breather Assembly)
Tube-Breather
Gasket-Crankcase
Screw (Cylinder Head)
Plug-Oil Drain
Plug-Oil Drain
Crankshaft
Seal-Oil (PTO Side)
Screw (Crankcase Cover)
Flywheel
Key-Flywheel
Piston Assembly (Standard)
Piston Assembly (.020" Oversize)
Ring Set (Standard)
Ring Set (.020" Oversize)
Lock-Piston Pin
Pin-Piston (Standard)
Rod-Connecting (Standard)
Screw (Connecting Rod)
Valve-Exhaust
Valveq ntake
Spring-Valve (Intake)
Spring-Valve (Exhaust)
Keeper-Valve
Tappet-Valve
Camshaft
Short Block
Manifold-Intake
Gasketq ntake
Stud (Carburetor)
Screw (Intake Manifold)
Screw (Intake Manifold)
Screen-Rotating
Screw (Rotating Screen)
Washer (Flywheel)
Plug-Oil
Screw (Throttle Valve)
Kit-Idle Speed
Pin-Float Hinge
Valve-Float Needle
Valve-Choke
Jet-Main (Standard)(Left)
Jet-Main (Standard)(Right)
Jet-Main (High Altitude)(Left)
Jet-Main (High Altitude)(Right)
121 699734 Kit-Carburetor Overhaul
125 699709 Carburetor
130 690993 Valve-Throttle
131 499805 Kit-Throttle Shaft
133 699724 Float-Carburetor
135 699729 Tube-Fuel Transfer
137 690994 (_$ Gasket-Float Bowl
141 699722 Kit-Choke Shaft
142 699726 O Nozzle-Carburetor
146 690979 Key-Timing
150 690995 O$ Gasket-Nozzle
160 699727 Retainer-Solenoid
163 691001 ,+ Gasket-Air Cleaner
165 693148 Nut (Ring Gear)
187 791766 Line-Fuel (Cut to Required Length)
187A 791744 Line-Fuel (Molded)
188 691108 Screw (Control Bracket)
192 690083 Adjuster-Rocker Arm
209 697674 Spring-Governor
211 691019 Spring-Governed Idle
212 695238 Link-Governor
213 691021 Bracket-Choke Control
216 691022 Link-Choke
219 698231 Gear-Governor
220 690412 Washer (Governor Gear)
222 698761 Bracket-Control
227 792492 Lever-Governor Control
231 690718 Screw (Choke Valve)
240 691035 Filter-Fuel
250 690957 Retainer-Breather
252 690956 Collector-Oil
265 691024 Clamp-Casing
267 695134 Screw (Casing Clamp)
276 690997 ,O$ Washer-Sealing
287 691108 Screw (Dipstick/Tube Assembly)
304 790688 Housing-Blower
305 691005 Screw (Blower Housing)
305A 790690 Screw (Blower Housing)
309 691262 Motor-Starter
310 691263 Screw (Starter Motor)
311 497608 Brush Set
332 691059 Nut (Flywheel)
333 691060 Armature-Magneto
334 691061 Screw (Magneto Armature)
337 691043 Plug-Spark
358 694012 Gasket Set-Engine
363 691062 Puller-Flywheel
383 690966 Wrench-Spark Plug
o
O
4-
NOTE:
Included in Engine Gasket Set, Key. No. 358
Included in Carburetor Overhaul Kit, Key. No. 121
Included in Carburetor Gasket Set, Key. No. 977
Included in Valve Gasket Set, Key. No. 1095
All component dimensions given in U.S. inches
1 inch = 25.4 mm
49