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CLEANING OF FLOODED ENGINE
Although JetSurf™ is equipped with systems removing water from the power board, it can happen that
some water gets into the engine compartment and then it oods the engine through the carburettor
suction. In such a case it will not be possible to start JetSurf™ and it will be necessary to clean the engine.
PROCEDURE
1) First it is necessary to open the valve to let the water out of the crankshaft – FIGURE 1 – position
open and gure position closed.
2) Then it is necessary to pull the spark plug from the engine. Take the spring from the spark plug boot
- FIGURE 2 and remove the boot from the spark plug - FIGURE 3. Screw the spark plug out
using a spark plug spanner which is supplied within the accessories - FIGURE 4. Dry the spark plug
properly. If the spark plug has been in operation for more than 6 hours, it should be replaced.
3) Tilt the JetSurf™ through the spark plug opening down (its head). When the valve is open and spark
plug screwed out, start turning the shaft with your hand. While turning the shaft, you should see water
coming out of the open valve and head. Continue until water stops coming out.
FIGURE 2
FIGURE 1
OPEN
VALVE
CLOSED
VALVE
FIGURE 3
FIGURE 4
4) If after a while you can see that turning the shaft
is getting easier, place the engine shut-o key and
hold it in the magnet position (a wheel marked
MAGNET) on the control unit – FIGURE 5. This
position will turn the starter without ignition from
the spark plug. The position is used for the needs
of engine cleaning and it replaces the previous
manual shaft turning.
ATTENTION: The fourth point can only be performed if most of the water
has already been pumped out manually or otherwise there is a danger of
damage to the starter. Do not turn the starter longer than 10 seconds. It
is rather intended as a check whether the engine can be turned.
5) If no water is coming out of the valve or the head any more, pour a small amount of fuel directly to
the air suction of the carburettor and ood the inside of the engine with fuel by means of the ICU. White
liquid (emulsion) should be squirting from the head. Repeat this procedure until only fuel is coming out
of the head.
6) Screw the spark plug back in following the instructions in the section Spark plug.
7) Put the spark plug boots back in place and secure it with a spring.
8) Close the bottom drain valve – FIGURE 1 – position CLOSED.
9) Start the engine for maximum 5-10 seconds to make sure that it works correctly. You can let the
engine running without cooling for maximum 10 seconds (temperatures of cylinder shouldn’t be higher
than 65°c/147°F) or otherwise it can get overheated and destroyed.
Never insert the engine shut-o key in the handle when the spark plug
is out.
Make sure that the boot covers the spark plug completely when mounted.
FIGURE 5
RIDERIDE
NOTICE