Tips for engine use

Storage preparation

  • If engine has been running, allow it to cool for at least half an hour before cleaning. Clean all exterior surfaces, touch up any damaged paint, and coat other areas that may rust with a light film of oil.
  • Gasoline will oxidise and deteriorate in storage. Old gasoline will cause hard starting, and it leaves gum deposits that may clog the fuel system.
    Avoid fuel deterioration problems by draining the fuel tank and carburettor.
  • Select a well-ventilated storage area away from any appliance that operates with a flame, such as a furnace, water heater or clothes dryer.
  • Also avoid any area with a spark producing electric motor or where power tools are operated. If possible, avoid any area with high humidity, because that promotes rust and corrosion.
  • Position the equipment so that engine is level. Tilting the engine can cause fuel or oil leakage.
  • If engine is equipped with battery, remove battery and store it in a cool dry place. Recharge the battery once a month while engine is in storage. This will help to extend the service life of the battery.

Draining the fuel tank and carburettor

  • Disconnect the fuel line to the engine, and drain the fuel tank into an approved gasoline container. If the fuel tank is equipped with a valve, turn the fuel valve to OPEN or ON position to enable draining.
    After draining is completed, reconnect the fuel line and turn the fuel valve to the OFF position.

 

  • Loosen the carburettor drain screw, and drain the carburettor into an approved gasoline container. After draining is completed, tighten the carburettor drain screw.

Transporting

  • If the engine has been running, allow it to cool for at least 15 minutes before loading the engine-powered equipment on the transport vehicle. A hot engine and exhaust system can burn you and can ignite some materials.

 

  • Keep the engine level when transporting to reduce the possibility of fuel leakage. If the fuel tank is equipped with a fuel valve, set the fuel valve lever to OFF.

Service rules

  • Use genuine Honda or Honda-recommended parts and lubricants or their equivalents. Parts that do not meet Honda's design specifications may damage the engine.
  • Use special tools designed for the engine.
  • Install new gaskets, O-rings, etc. when reassembling.
  • When torqueing bolts or nuts, begin with larger-diameter or inner bolts first and tighten to the specified torque diagonally, unless a particular sequence is specified.
  • Clean parts in cleaning solvent upon disassembly. Lubricate any sliding surfaces before reassemble.
  • After reassemble, check all parts for proper installation and operation.
  • Many screws used in this machine are self-tapping. Be aware that cross-threading or overtighting these screws will strip the threads and ruin the hole.
  • Use only metric tools when servicing this engine. Metric bolts, nuts and screws are not interchangeable with nonmetric fasteners. The use of incorrect tools and fasteners will damage the engine

Warning

The Honda engine is designed to give safe and dependable service if operated according to instructions. Read and understand the Owner's Manual before operating the engine. Failure to do so could result in personal injury or equipment damage.