Briggs & Stratton 31N800 service manual 793987

31N800

REF.	PART		REF.	PART		REF.	PART
NO.	NO.	DESCRIPTION	NO.	NO.	DESCRIPTION	NO.	NO.	DESCRIPTION
1	793987	Cylinder Assembly	29	791631	Rod−Connecting	127A	D690727	Plug−Welch
2	399265	Kit−Bushing/Seal			(Standard)	130A	699500	Valve−Throttle
		(Magneto Side)	33	791934	Valve−Exhaust	131A	699501	Kit−Throttle Shaft
3	K391086s	Seal−Oil	34	791935	Valve−Intake	133A	694914	Float−Carburetor
		(Magneto Side)	35	691279	Spring−Valve	135	792022	Tube−Fuel Transfer
4	697106	Sump−Engine			(Intake)	137A	D698781	Gasket−Float Bowl
5	793989	Head−Cylinder	36	691279	Spring−Valve	141B	698778	Kit−Choke Shaft
7	KΔ699168	Gasket−Cylinder Head			(Exhaust)	146	691639	Key−Timing
9	K697109	Gasket−Breather	37	697352	Guard−Flywheel	187B	791805	Line−Fuel
		(Used Before Code	42	499586	Keeper−Valve			(Formed)(10−1/4
		Date 07072400).	43	691968	Slinger−Governor/Oil			Inches Long)(Cut to
10	697157	Screw	45	690564	Tappet−Valve			Required Length)
		(Breather Assembly)	46	793880	Camshaft	188	691693	Screw
11	794683	Tube−Breather	50	690193	Manifold−Intake
								(Control Bracket)
		(Used After Code Date	51KΔD692137		Gasket−Intake
						192	691986	Adjuster−Rocker Arm
		07071800).	53	690227	Stud
						202	691841	Link−Mechanical
		−−−−−− Note −−−−−−			(Carburetor)
								Governor
		697113 Tube−Breather	54	691148	Screw
						209	692208	Spring−Governor
		(Used Before Code			(Intake Manifold)
						216	691840	Link−Choke
		Date 07071900).	73		Screen−Rotating
						222	694042	Bracket−Control
12	K697110	Gasket−Crankcase			(Service With Flywheel
						227	691374	Lever−Governor
		(.015”Thick)(Standard)			Fan 794436)
								Control
13	793988	Screw			(Used Before Code
						232	691842	Spring−Governor Link
		(Cylinder Head)			Date 07040900).
						238	691843	Cap−Valve
		(Used After Code Date	73A	794437	Screen−Rotating
						240A	691035	Filter−Fuel
		07011400).			(Used After Code Date
								(Includes Paper
		−−−−−− Note −−−−−−			07040800).
								Element With A 40
		690360 Screw	74	697897	Screw
								Micron Rating)
		(Cylinder Head)			(Rotating Screen)
						265	691024	Clamp−Casing
		(Used Before Code			(Used Before Code
						267	792629	Screw
		Date 07011500).			Date 07040900).
								(Casing Clamp)
		(Cylinder Head)	78	691003	Screw
						268	691025	Casing−Control Wire
15	690946	Plug−Oil Drain			(Flywheel Guard)
								(Cut To Required
		(Square Head)	94A	695425	Kit−Idle Mixture
								Length)
16	697127	Crankshaft	95A	D690718	Screw
						269	691026	Wire−Control
20	K791892	Seal−Oil			(Throttle Valve)
								(Cut To Required
		(PTO Side)	98A	695408	Kit−Idle Speed
22	692125	Screw	104A	D694918	Pin−Float Hinge			Length)
		(Crankcase	105A	D696136	Valve−Float Needle	270	691027	Nut
		Cover/Sump)	108B	695419	Valve−Choke			(Control Wire Casing)
23	693556	Flywheel	117A	699732	Jet−Main	271	691028	Lever−Control
24	222698s	Key−Flywheel			(Standard)	276A	695410	Washer−Sealing
25	791937	Piston Assembly	118A	843099	Jet−Main	304	790929	Housing−Blower
		(Standard)			(High Altitude)			(Red)
		−−−−−− Note −−−−−−	121A	792369	Kit−Carburetor	305	697102	Screw
		793019 Piston			Overhaul			(Blower Housing)
		Assembly			(Nikki Carburetor)	305A	793376	Screw
		(.020 Oversize)	125A	792171	Carburetor			(Blower Housing)(Lift
26	791936	Ring Set			(Nikki Carburetor)			Screw)
		(Standard)
		−−−−−− Note −−−−−−
		792649 Ring Set
		(.020 Oversize)

27698469 Lock−Piston Pin

28697099 Pin−Piston (Standard)

K Included in Engine Gasket Set−Ref. No.358. Δ Included in Valve Gasket Set−Ref. No 1095.

DIncluded in Carburetor Overhaul Kit−Ref. No. 121A.

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

3593−8 Assemblies include all parts shown in frames. 10/30/2007

8