Download SeaDoo GSX Technical data

Section 01 ENGINE
Subsection 02 (TOP END)
THEORY OF OPERATION
RAVE Valve System
On this engine, the RAVE valves are controlled by the Multi-Purpose Electronic Module (MPEM).
The MPEM measures 2 factors to control the RAVE valves: engine speed (RPM) and its rate of acceleration.
To open the RAVE valves, the MPEM activates a solenoid which directs the positive pressure from engine
crankcase to the valves.
NOTE: A check valve on the pressure line eliminates the negative pressure from the crankcase.
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5
3
2
1
F06D16S
RAVE VALVE OPENED
1. Pulse from crankcase
2. Check valve
3. Positive pressure to solenoid
4. Solenoid activated
5. Positive crankcase pressure to RAVE valves
01-02-2
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