Remove the carb top and fuel filter gauze – below there are some dirt particles present
which must be blown out with compressed air or carb cleaner.
Remove the 6 Torx screws to dismantle the metering and fuel pump covers from the main
body.
Inspect the condition of the metering diaphragm to see if the convolution has lost shape and
become flat – this results in incorrect metering of fuel and inconsistent carburetion.
Inspect the fuel pump diaphragm to see if the area around the fuel pump is ‘sagging’ which
shows it has become weak and as a result will not have the same pumping capacity as when
fitted as new.
The arrow above shows some sagging in the pump area of the Pump Diaphragm on left
which is advisable to replace in this condition. The Metering Diaphragm on the right is still in
good condition however as the convolution has not lost its shape.
Inspect the inlet control lever (paddle) to see the height which is recommended to be flush
with the body as shown below:
To Next Page
Loading...