PIAGGIO Beverly Tourer 250 i.e. Service Station Manual page 72

Electrical system
4) With the ignition key always «OFF», the reading indicated by the ammeter must be must be ≤ 0.5
mA.
Check the charging current
WARNING
BEFORE CARRYING OUT THE CHECK, MAKE SURE THAT THE BATTERY IS IN GOOD WORK-
ING ORDER.
1) Place the vehicle on its centre stand
2) With the battery correctly connected to the circuit, place the tester terminals between the battery
terminals..
3) Turn on the engine, increase the engine rpm and, at the same time, measure the voltage.
Electric characteristic
Voltage ranging between 14.0 and 15.0V at 5000 rpm.
Maximum current output check.
- With the engine off and the panel at «ON» with the lights on, allow the battery voltage to stop at 12V.
- Connect ammeter pliers to the 2 recharge positive poles in output from the regulator.
- Start the engine and rev it up to a high engine speed while reading the value on the pincer.
With an efficient battery a value must be detected: > 20A
Specification
Voltage
Starter motor
ELE SYS - 72
VOLTAGE REGULATOR/RECTIFIER
Type
Beverly Tourer 250 i.e.
Desc./Quantity
Non-adjustable three-phase transistor
14 ÷ 15V at 5000 rpm with lights off