Lawn Tractor · 1979Unverified
Bolens 831
Bolens 831 — Riding lawn mower · 8 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
8 hp
Weight
174 kg
Hover a source tag to verify
Overview
ManufacturerBolensReference
Riding lawn mowerReference
Two-wheel driveReference
Manual steeringReference
Disc brakesReference
Open operator station.Reference
Variants
830manual startReference
831electric startReference
Engine
8HP Briggs & Stratton 318cc 1-cyl gasolineReference
Fuel tank2.8 LReference
Briggs & Stratton 190707Reference
gasolineReference
1-cylinderReference
air-cooled vertical-shaftReference
Displacement19.44 ciReference
Bore/Stroke76 x 70 mmReference
Power (gross)6.0 kWReference
Rated RPM3600Reference
StarterelectricReference
Starter volts12Reference
SparkplugChampion J-8Reference
Sparkplug gap0.762 mmReference
Point gap0.508 mmReference
Oil capacity1.1 LReference
Oil change25 hReference
Transmission
5-speed gearReference
TransmissionPeerless 730Reference
Typebelt-driven gearReference
Gears5 forward and 1 reverseReference
Clutchidler pulleyReference
PTO & Hydraulics
Mid PTOindependentReference
Clutchmechanical idler pulleyReference
Dimensions
Wheelbase109 cmReference
Weight174 kgReference
Front tire4x10.4Reference
Rear tire6.5x16-8Reference
Lawn/turf front4x10.4Reference
Lawn/turf rear6.5x16-8Reference
Length152 cmReference
Height (steering wheel)97 cmReference
Bolens 831 attachments
30" mid-mount mower deckReference
831 Serial Numbers
Location:Serial number decal on the right-rear of the mower, between the engine and tire.Reference
Electrical
GroundnegativeReference
Battery volts12Reference
Battery AH19Reference
30" Mower deck
Typemid-mount BolensReference
Type1-blade with manual liftReference
Cutting width76 cmReference
Overall width95 cmReference
Cut height3 to 8 cmReference
Cut positions7Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.