Technical data

Section 03 FUEL SYSTEM

Subsection 01 (CARBURETION)

03-01-1

CARBURETION 0

AIR INTAKE SILENCER

The air intake silencer is a molded piece and it can

not be opened.

It contains a new flame arrester, which can not be

removed.

1. Air intake silencer

FUEL ACCELERATOR PUMP

General

The carburetors are equipped with a fuel acceler-

ator pump.

The fuel accelerator pump is mounted on the

magneto side carburetor. It is linked to the throttle

valve via a linkage.

A metering jet in the fuel inlet hose controls fuel

supply to the pump.

A check valve on the fuel outlet hose prevents air

from entering in the system.

Inspection

Disconnect inlet and outlet hoses from accelera-

tor pump nipples.

1. Fuel inlet hose

2. Fuel outlet hose

Using a suitable pump gauge tester, perform the

following test proceeding as follows:

– Install pump gauge tester (P/N 295 000 083) on

inlet nipple.

– Obstruct outlet nipple with a finger and hold

while pumping.

– Pump tester until it reaches 28 kPa (4 PSI).

1. Pump gauge tester

2. Hose installed to inlet nipple

3. Outlet nipple obstructed

Diaphragm must stand pressure for 10 seconds.

If pressure drops, replace diaphragm.

F06D22A

F06F06A

1 2

F06F07A

213