Radne Raket 120, Руководство пользователя

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User Manual
Wearparts and service intervals
The Raket 120 will need very few spare parts due to its simple and reliable design. The table below shows some
typical service intervals. Please notice that the conditions under which the engine is operated will have great
influence on these intervals.
Every 200 hours
·piston rings
Every 300 hours
·spark plug
·centrifugal clutch drum and weights (if the drum shows sign of wear on the inside of the drum)
Every 400 hours
·piston
·small end connecting rod needle bearing
·main roller bearings
·sealing rings
·gaskets
How to mix gasoline and oil for proper fuel
Every engine needs oil to lubricate cylinder and piston, and all the different bearings and sealings. In a four stroke
engine the oil is normally kept in the crankcase and pumped around to where it is needed.
Raket 120 is a two stroke engine, and two stroke engines don’t have any separate oil for lubrication. As oil still
is needed, the oil is mixed with the gasoline, and thus follows the fuel in and around in the whole interior of the
engine. If you would attempt to run the Raket 120 engine on fuel with no oil in it, the engine would break down
due to the internal friction between cylinder and piston. For this reason it is important that you always use a
gasoline and oil mixture as fuel.
The Raket 120 is designed to run on a mixture of 4 % (per cent) synthetic oil in lead free gasoline, 95 or 98 oc-
tane.
NOTE. If you have your engine equipped with catalytic emission control (catalytic converter) you MUST use lead
free gasoline. If you don’t have a catalytic converter, you could use leaded gasoline, but we still recommend the
unleaded types, preferable with 98 octane, but 95 will also do.
How to get 4% oil mixture:
Use a clean can or fuel container. Mix 10 liters of fuel with 0,4 liters of synthetic oil. Shake well! Your gas station
can offer you a variety of two stroke oils. We recommend the type that is used for chain saws, lawn movers and
smaller motorcycles. Two stroke oil for marine use is called outboard oil, and is not recommended depending on
the extra ingredients for corrosion control.
Don’t use so called racing oil, sometimes also called castor oil. This type of oil mixes not so well with the gaso-
line, and may later separate in the tank.