Table of Contents
Advertisement
To stop the engine, proceed as follows:
A) Turn the key in STOP position, both from RUN position (1 tripping) or from START
position (2 trippings).
3.5 ENGINE BREAK-IN
The break-in of the engine must be performed following a few fundamental
recommendations:
1. Adjust the carburetion. Start with a basic adjustment on the rich side.
2. Warm the engine gradually for about 5 minutes, at half throttle, making a few laps
at low speed, gently closing and opening the carb. throttle (if a tachometer is
installed never exceed 10.000 ÷ 11.000 RPM). Never keep the same RPM for a
long time.
3. Increase the speed for 5 minutes (at throttle ¾ opening).
Never keep the same RPM for a long time.
4. Increase the speed for 5 minutes at max. speed on the twisty parts and making the
engine rich at half straight (cover with the hand, for an instant, the holes on the
air filter, keeping the throttle wide open).
ATTENTION:
Once the break-in is over and the engine is cold, check the torque of the exhaust
header nuts as , during the break-in, the nuts tend to become loose (refer to the
attached table).
3.6 RPM LIMITATION
The electronic box integrates an RPM limiter which prevents the engine from
exceeding 14000 RPMs for both F3 and F4 versions, 15000 RPM for F2 vers. and
16000 RPM for F1. vers.
The limit of 16000 RPMs cannot be exceeded, otherwise the engine could be damaged
by the extremely high RPM.
ATTENTION:
Do not keep the engine for a long time at the RPM at which the limiter is
operating. This would cause malfunctions on the induction and damage the reed
valve. When choosing the sprocket ratio always refer to maximum limit so that
the RPM limiter only intervenes on the longer straights on the track.
3.7 INLET SILENCER
Make sure that the inlet holes on the filter are towards the front side of kart and that
they are not plugged. Make sure that the clamp on the carb. is not loose and that the
filter is well fastened to the rail side chassis, by means of a " craddle" support.
Once a while, clean the inside from oil deposits. If necessary remove the rubber filter
union and clean it with gasoline or solvent.
28
MAN-051 ING
Hide quick links:
Advertisement
Table of Contents
