Briggs & Stratton 21A900 Series Illustrated Parts List page 12

21A900
REF. PART
NO. NO. DESCRIPTION
36 691279 Spring−Valve
(Exhaust)
37 697352 Guard−Flywheel
37A 697626 Guard−Flywheel
(Electric Start)
Used on Type No(s).
0117, 0127, 0134,
0136, 0138, 0139,
0141, 0142, 0144,
0149, 0151, 0161,
0166, 0168, 0170,
0171, 0176, 0184,
0188, 0190.
42 499586 Keeper−Valve
43 691968 Slinger−Governor/Oil
45 690564 Tappet−Valve
46 793880 Camshaft
50 697361 Manifold−Intake
51KD Δ692137 Gasket−Intake
z
53 690227 Stud
(Carburetor)
54 691148 Screw
(Intake Manifold)
55 695130 Housing−Rewind
Starter
56 695129 Pulley−Starter
57 695131 Spring−Rewind Starter
58 695132 Rope−Starter
60 494212 Grip−Starter Rope
65 690759 Screw
(Rewind Starter)
(Used After Code Date
07040800).
−−−−−− Note −−−−−−
697725 Screw
(Rewind Starter)
(Used Before Code
Date 07040900).
Screen−Rotating
73
(Service With Flywheel
Fan 794440)
(Used Before Code
Date 07040900).
73A 794437 Screen−Rotating
(Used After Code Date
07040800).
74 697897 Screw
(Rotating Screen)
(Used Before Code
Date 07040900).
690582 Washer
75
(Flywheel)
75 690582 Washer
(Flywheel)
K Included in Engine Gasket Set−Ref. No. 358.
D Included in Carburetor Overhaul Kit−Ref. No. 121 or 121A.
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
5069−12
REF. PART
NO. NO. DESCRIPTION
78 691003 Screw
(Flywheel Guard)
78A 690364 Screw
(Flywheel
Guard)(Electric Start)
81 691178 Lock−Muffler Screw
93 D690602 Bushing−Throttle Shaft
94 498030 Kit−Idle Mixture
(Walbro)
94A 695425 Kit−Idle Mixture
(Nikki)
95 D691636 Screw
(Throttle Valve)
(Walbro)
95A D690718 Screw
(Throttle Valve)(Nikki)
98 495800 Kit−Idle Speed
(Walbro)
98A 695408 Kit−Idle Speed
(Nikki)
104 D690525 Pin−Float Hinge
(Walbro)
104A D694918 Pin−Float Hinge
(Nikki)
105 D231855S Valve−Float Needle
(Walbro)
105A D696136 Valve−Float Needle
(Nikki)
106 D690577 Seat−Inlet
(Walbro)(Gravity Feed)
−−−−−− Note −−−−−−
D691780 Seat−Inlet
(Walbro)(Pump Feed)
108 691227 Valve−Choke
(Walbro)
108A 698773 Valve−Choke
(Nikki)
117 699897 Jet−Main
(Standard)
(Used Before Code
Date 07122600).
−−−−−− Note −−−−−−
794258 Jet Main
(Standard)
(Used After Code Date
07122500).
118 699898 Jet−Main
(High Altitude)
(Used Before Code
Date 07122600).
−−−−−− Note −−−−−−
791405 Jet Main
(High Altitude)
(Used After Code Date
07122500).
Assemblies include all parts shown in frames.
12
REF.
NO.
121
121A
125
125A
125B
127 D694524 Plug−Welch
127A D690727 Plug−Welch
130
130A
131
131A
133
133A
135A
Included in Carburetor Gasket Set−Ref. No. 977 or 977A.
z
Δ Included in Valve Gasket Set−Ref. No. 1095.
PART
NO. DESCRIPTION
790031 Kit−Carburetor
Overhaul
(Walbro)
698787 Kit−Carburetor
Overhaul
(Nikki)
790021 Carburetor
(Walbro)
(Used Before Code
Date 06121900).
Used on Type No(s).
0142, 0166.
791266 Carburetor
(Nikki)
(Used Before Code
Date 07122600).
−−−−−− Note −−−−−−
794653 Carburetor
(Nikki)
(Used After Code Date
07122500).
794215 Carburetor
(Nikki)
(Used Before Code
Date 07122600).
−−−−−− Note −−−−−−
794653 Carburetor
(Nikki)
(Used After Code Date
07122500).
(Nikki)
790024 Valve−Throttle
(Walbro)
698774 Valve−Throttle
(Nikki)
790901 Kit−Throttle Shaft
(Walbro)
698776 Kit−Throttle Shaft
(Nikki)
494381 Float−Carburetor
(Walbro)
694914 Float−Carburetor
(Nikki)
698780 Tube−Fuel Transfer
(Nikki)
(Used Before Code
Date 07122600).
−−−−−− Note −−−−−−
792022 Tube−Fuel
Transfer
(Nikki)
(Used After Code Date
07122500).
02/07/2008