Technical data

Section 03 FUEL SYSTEM

Subsection 01(CARBURETION)

03-01-3

TYPICAL

1. Apply synthetic grease to plunger

2. Apply BOMBARDIER LUBE on roller shaft

BN-46I CARBURETORS

On these carburetors, diaphragms are either

opened to the atmosphere or to the air intake si-

lencer, depending upon throttle position.

The advantage of this system is to keep the right

air/fuel ratio on the entire RPM’s range of the en-

gine.

To transfer the venting of the diaphragms, 3 main

components are used:

–throttle position switch

–amplifier

–solenoid

The throttle position switch is built-in the throttle

cable. Its purpose is to signal the amplifier.

1. Throttle position switch

The amplifier boost the signal received from the

throttle position switch and activates the sole-

noid. The switch is mounted opposite to the oil

injection reservoir.

1. Amplifier

F06F06B

F06F09A

F06H1OA