1991-2001 Honda GX240K1 / GX270 / GX340K1 / GX390K1 Service Manual

Service data for Honda GX240K1, GX270, GX340K1, GX390K1 engines. Covers maintenance, repair, and specifications, publication PSV52306-A.

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Document Details

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Document Number / Seller:
30815 / Sandra Martin
File Size:
5.44 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Engines (Gasoline)
Last updated / verified
Mar 1, 2025

Models Covered & Key Technical Specifications

Thorough Reference Calibration Manual: Honda GX240K1 / GX270 / GX340K1 / GX390K1 Service Manual - Comprehensive Maintenance & Repair Procedures (1991-2001) Service-Dossier

Honda Engines: GX240K1, GX270, GX340K1, GX390K1 (PSV52306-A) | Original Honda Package.

  • Nominal Power Framework: 9.7 kW (13.0 HP) at 3,600 min⁻¹ specifies the maximum power output Capability.
  • Prescribed Operating Temps: For optimal operation, 15-30°C defines the environmental limit Framework.
  • System Cycle Rate: The engine can achieve 3,850 ± 150 min⁻¹ defines the idle speed Setting.
  • Calibrated Package Size: The GX340K1 engine requires 35 mm (1.38 in) for its standard height Logic.
  • Documented Moment Values: 34 N·m (25.1 lbf·ft) is the max torque for the GX240K1 Benchmarks.
  • Defined Current Rating: The ignition timing for the GX340K1 is 20° BTDC (Fixed) Baseline.

Professional Workshop Service Manual & Technical Specifications

Thorough Reference Calibration Manual: Honda GX240K1 / GX270 / GX340K1 / GX390K1 Service Manual - Comprehensive Maintenance & Repair Procedures (1991-2001) Service-Dossier

System-Identifier: GX240K1, GX270, GX340K1, GX390K1 // Documentation-Type: engine / gasoline Logic // System-Identifier: PSV52306-A.

Service-Nexus System-Path Calibration-Standards
Engine Specifications Dimensions and Weights Performance Curves
P.T.O. Shaft Drawings Wiring Diagrams Maintenance Schedule
Engine Oil Reduction Case Oil Air Cleaner/Muffler
Spark Plug Carburetor Fuel Tank/Governor Arm
Flywheel/Ignition Coil Starter Motor Cylinder Head/Valves
Crankcase Cover/Governor Crankshaft/Piston Reduction Unit
Optional Parts Index Troubleshooting

Integrated service sections encompass repairs, maintenance, and detailed specifications for the GX240K1, GX270, GX340K1, and GX390K1 engines. The manual includes information on disassembly, reassembly, inspection, and adjustment procedures.

Service procedures are documented for

engine oil changes, air filter cleaning, and spark plug replacement.

Calibration requirements are specified for

valve clearance adjustments and governor settings.

Electrical system documentation covers

ignition coils, starter motors, and charging systems.

Suspension service documentation covers

reductions units and P.T.O. shaft configurations.

Disassembly instructions are documented for

carburetors, fuel tanks, and cylinder heads.

This manual documents torque specifications for engine components to ensure proper joint separation prevention.

FAQ

Reference the **specified** tool requirements for valve seat reconditioning. keyboard_arrow_down

07780-P01010A and 07781-P01010A are the part numbers for the valve seat cutters required for this procedure.

What are the **essential** electrical values for the ignition coil inspection? keyboard_arrow_down

Primary side resistance should be between 0.8 - 1.0 Ω, and secondary side resistance should be 5.9 - 7.1 kΩ.

Specify the **correct** calibration settings for the cylinder head warpage. keyboard_arrow_down

0.10 mm (0.004 in) is the maximum allowable service limit for cylinder head warpage, as detailed on page 9-3.

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