1997 sea doo speedster

[mattgoss]

does anyone know if the 717 motors have a rave valve

 

[JustD00It]

No, the 717s do not have rave valves. I could be wrong, but I believe it has rotary valves.

 

[mattgoss]

okay thanks do you know where the rotary is at on the motor

 

[JustD00It]

Unfortunately, I'm not sure. But I found this on another post on the forum. I don't really understand this, not sure if you will, but it's worth a shot:

from the rotory valve gear, in center of that, draw lines from center of gear to outside surface edge of rv cavity, going above and below the front hole, so your line is hitting top edge/bottm edge of hole, continue with line to outer surface and those markings are yuor 0*

( from http://www.seadooforum.com/showthread.php?28715-Rotax-717-rotary-valve-location )

Hope this helps, sorry if it doesn't.

 

[mattgoss]

i have a 97 speedster with twin 717 one motor runsne fine. the one behind the driver runs fine up to 4500 rpms but anything over that it surges. any ideas to fix it

 

[JustD00It]

Have you checked the compression on the cylinders or checked the hoses for slits and made sure they were tight?

 

[mattgoss]

the compression is 140 on all four cylinders. the hoses have no cuts in them and all are tight