PIAGGIO 500 cc Service Manual page 168

Fuel injection
(3) Fuel pump
- Take note of the position of the feed wires on the
support
pos 1 = positive (red)
pos 4 = negative (black)
NOTE: the pump connections are not interchangeable.
- Disconnect the feed wires
- Cut the hose clamp from the delivery pipe on the
support
- Remove the fixing washer from the pump
- Remove the tube from the filter attachment
- Remove the pump complete with ring support and
prefilter
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1 2 3 4
5