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Section 03 ENGINE

Sub-Section 07 (ROTARY VALVE)

03-07-8

717 Engines

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.

All 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 valves. 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

F01D34A

F01B2FA

Engine

Rotary Valve

P/N

Valve

Duration

717D 290 924 504 132°

717/787 290 924 502 159°

F01D8OA

Sea-doo SP User Manual

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