Fuel Pump - Sym Jet 50 Service Manual

10. FUEL SYSTEM
Inspection
Check the reed valve for damage and its reed
strength.
Check the reed valve seat for crack, damage
and the clearance between the seat and the
valve.
Replace reed valve if necessary.
Caution
Do not bend the reed valve stopper.
Otherwise, it will cause its strength insufficient
and rough engine running. If the reed valve
or its seat is damaged, replace with a set.
Installation
Install in the reverse order of removal
procedures.
Check for leaking after installed.

Fuel Pump

Inspection
Remove the body cover.
Warm up the engine and adjust idle speed.
Remove fuel hose from carburetor and then wait
for 5 minutes.
Measure the output of fuel pump. Its output
time is 10 seconds.
Output quantity: Min. 20 c.c.
If the output quantity is lower than 20 c.c., check
fuel hose, vacuum hose and fuel filter.
Removal/Installation
Remove floor plate.
Remove fuel inlet, outlet and vacuum hoses.
Remove 2 bolts and fuel pump.
Install the fuel pump in the reverse order of
removal procedures.
10-8
This chapter Contents
Reed valve
Reed valve seat
Fuel hose
Fuel inlet
hose
Reed stopper
Carburetor
Fuel hose
connector
Bolt
Fuel outlet
hose
Vacuum
hose