Oil And Fuel - Compact Radial Engines MZ201 Instruction And Maintenance Manual

Whichever blend of oil and fuel you use, there follows some advice that will help you keep the engine in
perfect running order.
• The presence of impurities in the fuel is the main cause of engine failure. To prevent the fuel from being
contaminated, it is necessary to take action at source, because the potential risk increases if impurities
enter the fuel tank. Always use a clean fuel container that complies with safety standards. Always filter
the fuel when you fill or change the container Do not fill the container to the brim; never forget that fuel
may increase in volume.
• Do not use blends which have been stored for a long time or which have been exposed to sunlight in a
translucent container. Blend the fuel and oil thoroughly before filling the fuel tank because there is a risk
of the two liquids separating in time.
• Choose the same type and brand of oil and stick to it unless it causes problems. By doing so, you will get
to know the product well and you will be able to assess whether it suits your engine. If you change the
type of oil frequently and your engine has problems, you will never know which type of oil is responsible.
• It is extremely important to avoid switching from synthetic oil to traditional oil. The two types are not
always compatible and, if blended, it is possible that a film may form and obstruct the engine's
components or cause other problems. As a rule of thumb, 20% of cases where the user has switched
from a synthetic oil to a traditional oil has resulted in problems with the engine.
• If the engine has been installed the opposite way up (with the spark plug pointing downwards), choose an
oil that leaves few carbon deposits. Oil deposits tend to build up in the lowest parts, for example, in the
spark plug cavity. If these deposits do not burn during normal use, the sparkplug is fouled and this may
result in self-ignition. Manufacturers of top brand lubricants guarantee the quality of their products.
Oil specifications: synthetic oil for two-stroke engines: 50 : 1 ratio
Fuel specifications: the octane rating should be minimum: R.O.N.93 or more.

OIL AND FUEL

8