BOMBARDIER SEA-DOO GS 5626 1998, Shop Manual

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Section 04 ENGINE
Subsection 07 (ROTARY VALVE)
04-07-8
717 Engine
To install rotary valve shaft in crankcase, use a
pusher (P/N 290 876 605).
1. Pusher
Push shaft until its stops on bearing seat.
1. Rotary valve shaft
2. Push shaft until it stops
787 Engine
To install rotary valve shaft in crankcase, use a
pusher (P/N 290 876 609) and handle (P/N 290
877 650).
1. Pusher
2. Handle
Push shaft until it stops on bearing seat.
717 and 787 Engines
4, Snap Ring
Position snap ring so that its sharp edge faces out-
wards.
13, Rotary Valve
The rotary valve controls the opening and closing
of the inlet ports. Therefore its efficiency will de-
pend on the precision of its installation.
IDENTIFICATION OF THE ROTARY VALVE
There is no identification code on the valve. To
find out the duration, place an angle finder on the
valve and measure the valve cut-out angle or use
the following template.
A00C0YA
1
F01D34A
1
2
F01B2FA
2
1
ENGINE
ROTARY VALVE
P/N
VALVE
DURATION
717/787 290 924 502 159°
F01D8OA