Ribiland GCS2500 Bedienungs- Und Wartungsanleitung Seite 31

4.4- Fuel and Chain Oil
WARNING
- Gasoline is very flammable. Avoid smoking or bringing any flame or sparks near fuel.
Make sure to stop the engine and allow it cool before refueling the unit.
Select outdoor bare ground for fueling and move at least 3 m (10 ft) away from the fueling point
before starting the engine.
- Use an anti-oxidant added quality oil expressly labeled for air-cooled 2-cycle engine use
- Do not use BIA or TCW (2-stroke water-cooling type) mixed oil.
4.4.1- Recommended Mixing Ratio
Gasoline 25 : OIL 1
- Exhaust emission are controlled by the fundamental engine parameters and components (eq.,
carburetion, ignition timing and port timing) without addition of any major hardware or the
introduction of an inert material during combustion.
- These engines are certified to operate on unleaded gasoline.
- Make sure to use gasoline with a minimum octane number of 89RON (USA/Canada: 87AL).
- If you use a gasoline of a lower octane value than prescribed, there is a danger that the engine
temperature may rise and an engine problem such as piston seizing may consequently occur.
- Poor quality gasoline or oils may damage sealing rings, fuel lines or fuel tank of the engine.
4.4.2- How to mix fuel
WARNING - Pay attention to agitation.
1. Measure out the quantities of gasoline and oil to be mixed.
2. Put some of the gasoline into a clean, approved fuel container.
3. Pour in all of the oil and agitate well.
4. Pour in the rest of gasoline and agitate again for at least one minute.
As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is necessary
for the engine to last long. Be careful that, if the agitation is insufficient, there is an increased danger
of early piston seizing due to abnormally lean mixture.
5. Put a clear indication on the outside of the container to avoid mixing up with gasoline or other
containers.
6. Indicate the contents on outside of container for easy identification
4.4.3- Fueling the unit
1. Untwist and remove the fuel cap. Rest the cap on a dustless place.
2. Put fuel into the fuel tank to 80% of the full capacity.
3. Fasten the fuel cap securely and wipe up any fuel spillage around the unit.
WARNING 1. Select bare ground for fueling.
2. Move at least 10 feet (3 meters) away from the fueling point before starting the
engine.
3. Stop the engine before refueling the unit. At that time, be sure to sufficiently
agitate the mixed gasoline in the container.
4.4.4- To preserve your engine life, avoid:
1. Fuel with no oil (raw gasoline): it will cause severe damage to the internal engine parts very
quickly.
2. Gasohol: it can cause deterioration of rubber and/or plastic parts and disruption of engine
lubrication.
3. Oil for 4-cycle engine use: it can cause spark plug fouling, exhaust port blocking, or piston ring
sticking.