BRP ROTAX 912 Series User Manual

BRP-Rotax
MAINTENANCE MANUAL LINE
MECHANICAL SYNCHRONIZATION
General note
m WARNING
Non-compliance can result in serious injuries or death!
Always observe the engine from a safe place while it is running. Check that the cockpit
is occupied by a competent operator.
Basic throttle
adjustment
For synchronous basic throttle adjustment proceed as follows.
Step
Procedure
1 Remove cable fixation (4) on throttle lever (1).
2
Return the throttle lever (1) to its idle stop position (3) by hand. There
should be no resistance during this procedure.
3 Unscrew idle speed adjustment screw (2) until it is free of the stop.
4
Insert a 0.1 mm (0.004 in.) feeler gauge (gap X) between the idle speed ad-
justment screw (2) and the carburetor idle stop (3) , then gently turn the idle
screw clockwise until contact is made with the 0.1 mm (0.004 in.) feeler
gauge.
5
Pull out the feeler gauge and then turn each idle speed adjustment screw
(2) 1.5 turns clockwise.
6
Gently turn each idle mixture screw (6) (clockwise) until it is fully inserted
and then reopen by 1.5 turns counter clockwise.
7
Check that the throttle valve opens fully automatically.
8
Adjust the two bowden cables for simultaneous opening of the throttle
valves.
Carry out the above procedure on both carburetors.
Synchronization You must at this point place the throttle lever in the cockpit to the idle stop position. It is an
advantage at this point to enlist the help of an assistant to ensure that the throttle lever re-
mains in this position during the next steps of the synchronization process.
Step
Procedure
1 As soon as the throttle lever in the cockpit remains is in the idle stop posi-
tion, check the throttle valve lever to the carburetor idle stop position.
2
Using the cable fixation, secure the bowden cable accordingly.
3
As soon as the two carburetor bowden cables are installed (throttle lever in
cockpit in idle position), you must check that the idle speed adjustment
screw rests fully on the idle stop without pressure.
12–20–00
Page 26
January 01 2020
Effectivity: 912 Series
Rev. 0

BRP ROTAX 912 Series Specifications

General

Brand	BRP
Model	ROTAX 912 Series
Category	Engine
Language	English