Technical data

Section 04 ENGINE
Sub-Section 04 (ROTARY VALVE)
04-04-11
CLOSING MARK
Step : Top of MAG inlet port.
Align 360
° line of degree wheel
Step : Find 65
° on degree wheel and mark here
– Remove degree wheel.
– Position rotary valve on shaft splines to have
edges as close as possible to these marks with
the MAG piston at TDC.
NOTE : Rotary valve is asymmetrical. There-
fore, try flipping it over then reinstall on
splines to obtain best installation position.
Apply BOMBARDIER-ROTAX injection oil on rota-
ry valve before reassembling rotary valve cover.
– Remove TDC gauge.
1,2,12, Rotary Valve Cover, Screw and
O-ring
Install O-ring and cover then torque screws to 20
N•m (15 lbf•ft) in a criss-cross sequence.
NOTE : For the 587 engine, install engine in
watercraft first ; then, install rotary valve
cover, intake manifold and carburetor as an as-
sembly.
F01D3EB
65°
1
2
1
2
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