The Honda H4013 is a lawn tractor with the Honda GXV390 vertical general-purpose engine (389 cc, 23.7 cu-in) and 965 mm (38 in.) belt-driven mower deck. The mower deck is adjustable for cutting heights between 25 mm (1 in.) and 96 mm (4 in). The Honda H4013 lawn tractor was produced from 1990 to 1991.
The Honda GXV390 is an air-cooled single-cylinder four-stroke gasoline engine with a vertical PTO shaft. It has an 88.0 mm (3.46 in) of the cylinder bore and 64.0 mm (2.5 in) of the piston stroke. The compression ratio rating is 7.7:1. The Honda GXV390 motor produces 13.0 HP (9.7 kW) at 3,600 rpm and 28.0 Nm (2.8 kg·m, 20.3 ft·lb) of torque at 2,500 rpm.
The Honda H4013 uses constant mesh transmission with key slide shift type. The transmission has five forward gears with travel speed from 1.7 km/h to 7.6 km/h (1.1 mph to 4.7 mph), neutral gear and single reverse gear 3.6 km/h (2.2 mph).
General information
| General Specifications | ||
| Model | Honda H4013 | |
| Length | 1,815 mm (71.5 in) | |
| Width | 1,270 mm (50.0 in) | |
| Height | 1,050 mm (41.3 in) | |
| Wheel base | 1,190 mm (46.9 in.) | |
| Dry weight (without tines) | 246.0 kg (542.0 lbs) | |
| Engine | ||
| Engine model | Honda GXV390 | |
| Displacement | 389 cm3 (23.7 cu-in) | |
| Bore x stroke | 88.0 X 64.0 mm (3.46 x 2.5 in) | |
| Max. horsepower | 13.0 HP (9.7 kW) at 3600 rpm | |
| Max. torque | 28.0 Nm (2.8 kg·m, 20.3 ft·lb) at 2,500 rpm | |
| Carburetor | Horizontal type, butterfly valve | |
| Cooling system | Forced-air | |
| Ignition system | Transistorized magneto ignition | |
| Lubricating system | Pressure and splash | |
| Starting system | Electric starter | |
| Stoping system | Ignition primary circuit ground | |
| Fuel used | Unleaded gasoline (octane number 86 or higher) | |
| Fuel tank capacity | 9.0 l (2.38 US gal. 1.98 Imp. gal) | |
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| Transmission | ||
| Gear type | Constant mesh, key slide shift type | |
| Gear selections | Five forward, one reverse | |
| Groung speeds |
First: 1.7 km/h (1.1 mph) Second: 3.4 km/h (2.1 mph) Third: 5.1 km/h (3.2 mph) Fourth: 6.4 km/h (4.0 mph) Fifth: 7.6 km/h (4.7 mph) Reverse: 3.6 km/h (2.2 mph) |
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| Wheels and tires | ||
| Front tires size | 15×6.0-6 | |
| Front tires pressure | 98 kPa (1.0 kg/cm2, 14 psi) | |
| Rear tires size | 20.5×8.5-10 | |
| Rear tires pressure | 78 kPa (0.8 kg/cm2, 11 psi) | |
| Mower Deck | ||
| Deck size | 965 mm (38 in.) | |
| Height range | 25-96 mm (1-4 in.) | |
Maintenance data
| Engine | |
| Maximum speed | 3,300 ± 150 rpm |
| Idle speed | 1,750 ± 150 rpm |
| Cylinder compression | 5.0-8.5 kg/cm2 (71-151 psi) at 600 rpm |
| Valve clearance | |
| Intake valve | 0.10 ± 0.02 (0.004 ± 0.001) |
| Exhaust valve | 0.15 ± 0.02 (0.006 ± 0.001) |
| Carburetor | |
| Main jet | #95 |
| Float height | 11.9-14.5 mm (0.47-0.57 in) |
| Pilot screw opening | 2-1/2 turns out |
| Oil system | |
| Oil type | Honda 4-stroke or an equivalent (SF or SG) |
| Recommended oil | SAE 10W-30 |
| Oil capacity | 1.1 L (1.2 US gal, 1.0 lmp qt) |
| Ignition system | |
| Ignition timing | 20 ° B.T.D.C (Fixed) |
| Spark plug | NGK: BPR5ES NIPPONDENSO: W16EPR-U |
| Spark plug gap | 0.7-0.8 mm (0.028-0.031 in) |
| Primary ignition coil resistance | 0.7-0.9 Ω |
| Secondary ignition coil resistance | 6.3-7.7 kΩ |
| Ignition coil air gap | 0.4 ± 0.2 (0.016 ± 0.008) |
| Starter motor | |
| Brush length | 7.2 mm (0.28 in) limit: 3.5 mm (0.14 in) |
| Mica depth | 1.0 mm (0.04 in) limit: 0.2 mm (0.01 in) |
| Blade bolt tightening torque | |
| Blade bolt | 60.0 Nm; 6.0 kg·m; 43.4 ft·lb |
Attachments
| Honda 38″ mid-mount mower deck | |
| Cutting width | 960 mm (38 in) |
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