Rave Valve Page
for 787 engines.

Okay, we all have wondered what those two little funny things are on top of the Seadoo engines and how do they work. If you don't know by now, don't do what is on this page. These are pictures of my removal and breakdown of my rave valves. The rave valves should be cleaned every 50 hours or so in order to keep their movement free. They are for illustration only and are not meant to be guide for someone to do theirs. If you are mechanically inclined and would like to clean yours; first read a manual, and then you can use these pictures as a visual aid to see what the valves look like. If you decide to clean them anyway, make sure that you don't drop anything into the valve slots, make sure you use new gaskets, and make sure that you clean all rubber parts without abrasive chemicals (ie. gas, carb, cleaner, etc.) as not to damage them. Good luck.

One valve.

First, clean all around valves.

One valve 2.

For MAG side, remove retaining wire and cover cap . Hold it as you remove it so the spring inside doesn't fly out.

One Valve 3.

Remove ring from rubber boot. Easy as not to strech it. Unscrew plastic piece from valve and remove the rubber boot. Depending on piston position, you may have to hold valve so it doesn't fall in.

One valve 4.

Unscrew hex nuts and remove valve housing assambly. Remove gasket and o-seal. Remove valve. Careful not to get anything in valve slot.

Gently wipe as much oil and grime from rubber boot with a paper towel, then use soap and water for finish. Clean metal parts with cleaning solvent or carburetor cleaner. Dry and spray WD-40 on them. Installation is the reverse of removal.

Set of clean valves.

Clean valves.

Valve without cap.


Lower half.


All the pieces.


Upper hardware.


Lower hardware.