Double-click here to edit the text.
The servicing of 4-Stroke engines
All 4-stroke engines build up carbon over time. The cylinder head that also house the valves (pictures left) has to be de-carboned after 300 hours of use. The top of the piston (pictures right) must also be de-carboned at the same time. The condition of the cylinder and the play on the piston can then be inspected and addressed if necessary.
Dirty Air filters
are a nightmare for any engine. Ensure that the air filters are checked, cleaned and replaced regularly.
on a 4-stroke engine is vital to ensure that the engine does not over reff and that the engine gives you more power under load. If the governor arm develops a dimple, as on the picture, the machine will not run correctly and will most probably humm.
Carbon build up on the cylinder head and valves.