PIAGGIO 633929(IT), Service Station Manual, Page: 170 / 314

With a 12V battery power the automatic starter and
check that the piston protrudes as much as possi-
ble.
- The correct warm up time depends on the ambi-
ent temperature.
- If protrusion, resistance or timing values are dif-
ferent from the ones prescribed, replace the start-
er.
- Assemble the starter to the carburettor being
careful to position the O-Ring correctly, insert the
plate with the machined side contacting the starter,
tighten the fixing screws.
- Position the starter as shown in the figure.
- Assemble the protection casing.
N.B.
TO CARRY OUT THIS CHECK PAY SPECIAL
ATTENTION NOT TO GENERATE SHORT CIR-
CUITS USE A CABLE SECTION WITH A TER-
MINAL SUITABLE TO BE CONNECTED TO THE
STARTER.
Characteristic
Check the automatic starter: Kehin: Protrusion
value
10 mm at about 20°C
Check the automatic starter: Keihin maximum
time
5 min
Starter resistance:
20 Ohm
Engine
MP3 125
ENG - 76