d02880.fm
MAINTENANCE MANUAL
BRP-Powertrain
Effectivity: 912 Series
Edition 2 / Rev. 0
12-20-00
page 44
October 01/2009
10.6) Checking the carburetor actuation
General note See Fig. 22.
Route bowden cables in such a way that carburetor actuation will not be
influenced by any movement of engine or airframe, thus possibly falsifying
idle speed setting and synchronization.
NOTES: Each carburetor is actuated by two bowden cables. At po-
sition (1) connection for throttle valve, and at position (2)
connection for choke actuation.
U
Procedure To test the carburetor actuation the following steps are necessary:
WARNUNG
WARNING
Risk of life threatening injuries caused by propeller!
Adjust bowden cables so that the throttle valve and the
choke actuation of the starting carburetor can be fully
opened and closed. Bowden cables and lever must not
jam!
WARNUNG
WARNING
Risk of life threatening injuries caused by propeller!
With carburetor actuation not connected, the throttle
valve is fully open. The initial position of the CD carbu-
retor is full throttle! So never start the engine with the
actuation disconnected.
Step Procedure
1 Inspect bowden cables and levers for free movement.
2 Bowden cable must allow full travel of lever from stop to stop.
3 Adjust throttle cables to a clearance of 1mm (0.04 in).
4 Inspect and lubricate linkage on carburetor and carburetor joints with engine
oil.
5 Inspect return springs (3) and inspect engagement holes for wear.
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