Automatic By-Starter - Sym GTS 250 Service Manual

Automatic by-starter

Inspection
Turn off engine and waiting for over 10 minutes for
cooling.
Check resistance across the two terminals of the
automatic by-starter.
Resistance value: Max. 10£ [
engine stopped for more than 10 minutes)
Replace the automatic by-starter with a new one if
resistance value exceeds standard.
Remove the carburetor, allow it to cool off for 30
minutes.
Connect a pressure tester form air pump.
Connect fuel rich circuit.
Pump compressed air to the circuit.
Replace the automatic by-starter if the circuit
clogged.
Connect battery posts (12V) to starter's
connectors. After 5 minutes, test the rich circuit
with compressed air.
If air flow through the circuit, then replace the
by-starter.
Removal
Remove fixing plate screw, and then remove the
plate and automatic by-starter from carburetor.
Valve inspection
Check if automatic by-starter and valve needle for
damage or wear out.
Installation
Install automatic by-starter to the carburetor body.
Install fixing plate to the upper groove of automatic
by-starter, and install its flat surface to carburetor.
Install screw and tighten it.
Caution
Align the round point of the starter with the
screw hole of air intake side.
To this chapter contents
(Measured after
4. Fuel System
1 screw
4-7