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TRACTOR -- MODEL NUMBER 917.272850
BRIGGS & STRATTON ENGINE-MODEL NUMBER 407777,TYPE NUMBER 0174-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 690231 Cylinder Assembly 118 690989 Jet-Main (High Altitude)
2 499585 Kit-Bushing/Seal (Magneto Side) 121 499811 Kit-Carburetor Overhaul
3 391086 • Seal-Oil (Magneto Side) 125 499804 Carburetor
4 690069 Sump-Engine 130 690993 Valve-Throttle
5 693998 Head-Cylinder (Cylinder 1) 131 499805 Kit-Throttle Shaft
5A 693999 Head-Cylinder (Cylinder 2) 133 499806 Float-Carburetor
7 690962 ,+ Gasket-Cylinder Head 135 499803 Tube-Fuel Transfer
8 499601 Breather Assembly 137 690994 O_ Gasket-FIoatBowl
9 690937 • Gasket-Breather 141 499807 Kit-Choke Shaft
10 690960 Screw (Breather Assembly) 142 499808 Q Nozzle-Carburetor
11 690942 Tube-Breather 146 690979 Key-Timing
12 697227 • Gasket-Crankcase 150 690995 O_ Gasket-Nozzle
13 690360 Screw (Cylinder Head) 160 690996 Retainer-Solenoid
15 690946 Plug-Oil Drain 163 691001 ,+ Gasket-Air Cleaner
16 691046 Crankshaft 165 693148 Nut (Ring Gear)
20 690947 • Seal-Oil (PTO Side) 187 691050 Line-Fuel (Cut to Required
22 694966 Screw (Engine Sump) Length)
23 691054 Flywheel 187A 691049 Line-Fuel(Molded)
24 222698 Key-Flywheel 188 690960 Screw (Control Bracket)
25 499588 Piston Assembly (Standard) 192 690083 Adjuster-Rocker Arm
25 499589 Piston Assembly (.010" Over- 209 697674 Spring-Governor
size) 211 691019 Spring-Governed Idle
25 499590 Piston Assembly (.020" Over- 212 695238 Link-Throttle
size) 213 691021 Bracket-Choke Control
25 499591 Piston Assembly (.030" Over- 216 691022 Link-Choke
size) 219 696376 Gear-Governor
26 499604 Ring Set-Piston (Standard) 220 690412 Washer (Governor Lever)
26 499605 Ring Set-Piston (.010" Oversize) 222 691023 Bracket-Control
26 499606 Ring Set-Piston (.020" Oversize) 227 691048 Lever-Governor Control
26 499607 Ring Set-Piston (.030" Oversize) 231 690718 Screw (Choke Valve)
27 690975 Lock-Piston Pin 240 691035 Filter-Fuel
28 690229 Pin-Piston 250 690957 Retainer-Breather
29 499583 Rod-Connecting 252 690956 Collector-Oil
32 690976 Screw (Connecting Rod) 265 691024 Clamp-Casing
33 499596 Valve-Exhaust 267 695134 Screw (Casing Clamp)
34 499597 Valve-Intake 276 690997 °Q+ Washer-Sealing
35 690963 Spring-Valve (Intake) 287 690960 Screw (Dipstick Tube)
36 690963 Spring-Valve (Exhaust) 304 695277 Housing-Blower
40 690964 Retainer-Valve 305 691005 Screw (Blower Housing)
42 499586 Keeper-Valve 309 691262 Motor-Starter
45 690977 Tappet-Valve 310 691263 Bolt-Starter Motor
46 690978 Camshaft 311 497608 Brush Set
48 692714 Short Block (446777-0027-E2 332 691059 Nut (Flywheel)
Replacement Engine) 333 691060 Armature-Magneto
50 695241 Manifold-Intake 334 691061 Screw (Magneto Armature)
51 690950 °Q_: Gasket-Intake 337 691043 SparkPlug
53 690951 Stud (Carburetor) 358 694012 Set-Engine Gasket
54 695240 Screw (Intake Manifold) 363 691062 Flywheel Puller
73 691055 Screen-Rotating 383 690966 Wrench-Spark Plug
74 691057 Screw (Rotating Screen) 385 690960 Screw (Fuel Pump)
75 691056 Washer (Flywheel) RPM Settings:Low Speed: 1900-2100
89 690283 Plug-Oil High Speed: 3000-3200
95 690718 Screw (Throttle Valve)
98 499802 Kit-Idle Speed ° Included in Engine Gasket Set, Key. No. 358
104 690984 Q Pin-Float Hinge O Included in Carburetor Overhaul Kit, Key. No.
105 690985 Q Valve-Float Needle 121
108 690986 Valve-Choke :l: Included in Carburetor Gasket Set, Key. No.
117 690232 Q Jet-Main (Standard) 977
+ Included in Valve Gasket Set, Key. No. 1095
NOTE: All component dimensions given in U.S. inches
1inch = 25.4 mm
53
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