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Users Manual
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Mounting the engine on the kart
For this purpose use original engine mount for the kart.
We have a special engine mount for the Raket 85 engine,
which makes the mounting to the frame very simple. The
part number for the engine mount is 3004. Please see illus-
tration for drilling instructions.
When you have mounted the engine to the frame, you must
link the carburettor with the accelerator. We have made a
special throttle linkage (no 3083), which makes it easy to do
this. We recommend that you have an extra return spring
that helps to close the throttle, in order to make sure that
the throttle closes every time you release the accelerator.
Finally, you connect the fuel hose to the carburettor. Use a
transparent, flexible hose with an inner diameter of 6 mm.
Flexible hose and muffler
Note!
Check that the flexible exhaust hose tightly surrounds the
beginning of the conical part of the muffler. This is very
important!
The Raket 85 kart engine is homologated with the muffler 3012 in
the Mini class, and with the muffler 3140 in the Micro class.
Between the muffler 3012 and the exhaust pipe 3132, you must
use a flexible hose (our number 3010). The length of this flexible
metal hose is important. One part of adjusting and tuning your kart
to a new track is to try out a suitable length of this flexible hose.
The principle is that the longer you make the hose, the stronger
the engine will be at low revs. And, the shorter you
make the hose, the higher the engine will rev up.
You should start with a standard length of 660 mm,
see illustration, and then try out the most suitable
length.
This is how you measure the length:
Measure from the gasket (3053) between the cylin-
der and the exhaust pipe, along the exhaust pipe, the flexible hose
and the muffler (that is the length along the outside).
If you want to change the total length, simply change the length of
the flexible hose.
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