Seadoosxp7201
New Member
Seadoo xp 720 will start up and run great... once I get the jet ski thrown around and start opening it up it seems to stall like the cord was off and not start back up... sometimes it will start up and sometimes it just flat out will not start.. I have replaced the carbs with kits I have replaced all fuel lines select valve and inline filters I have replaced all the filters the ski is at 145 -150 psi compression.. the tank has been cleaned out the head has been off and the piston and cylinder look good I have a new head gasket in it because it had a water leak from the o ring head.. I have no idea if it's got crank seal inner thats out or a bad rotary valve? I'm so confused I will try and post a vid.. and I do have spark and fuel going to the carbs or it could be getting stuck at the crank seal? Or rotary valve? Hope this sort of explains my problem I have had it on the hose and it runs fine it's when you put a load on it for around an hour she just dies and will not start back up once I get it home from the lake? Guess what the darn thing starts? That's what I have it narrowed down to I have a new coil in it have cleaned mpem cords red and black ground and have blown out.. any help would be great I have tried running it without cap off same thing... and compression is still 150 ish thanks branden,
