22
MAN-028
The engines are supplied with the following carburetors and kits of jets:
Engine (cc) 62 100 125
Carburetor HL 385 A HL 384 A HL 384 B
Jet kit (P.N.) 10971 10972 10973 A
Composition of
Kit
Lean jet 0.73 0.83 0.87
Normal on
carburetor
0.74 0.85 0.88
Enrichment jet
0.76
0.77
0.86
0.87
//
6- STARTING AND STOPPING THE ENGINE
Press the green button on the Power Pack .
If the engine can’t be started within 5 seconds (check that gas gets to the carb.)
interrupt and try again. Shorts and frequent tries are better than long ones.
In case the engine can’t be started refer to Par. 16 "Troubleshooting”.
The engine can be stopped by pressing the red button on the Power Pack Box. Keep
the button pressed until the engine has got to a complete stop.
ATTENTION:
In case of rain it is necessary to protect the Power Pack Box with the water
proof plastic cover, as otherwise water, by entering the box, could damage the
circuits beyond repair.
When weather is good, remove the cover as the eventual condensate might
damage the circuits.
7- ENGINE BREAK-IN
The break-in of the engine must be performed following a few fundamental rules:
1. Adjust the carburetion. Start with an adjustment on the rich side.
2. Warm the engine gradually for about 5 minutes at half throttle,making some laps at
low speed, gently closing and opening the carb. throttle (if a tachometer is installed
never exceed 8000 RPM on the 62cc engine and 11.000 ÷ 12.000 RPM on
100/125cc engines.). Never keep the same RPM for a long time.
3. Progressively increase the speed of the kart for 5 minutes at ¾ throttle opening.
Never keep the same RPM for a long time.
4. Increase the speed for 5 minutes, at max. speed on the twisty parts of the circuit
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).
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