goinbroke09

im new to jet skis and i recently bought a 1996 seadoo xp with the 787. i took it out the day i bought it and it ran amazing. the second time i took it out it ran great until i started heading back to the dock thats when it started stuttering. im thinking its running rich. after it warms up it runs alright but not 100%. if i shut it off for more than five minutes it starts again. i run high octane in it and i just added oil not long ago. it has a r&d air filter which im thinkin through off the mixture. like i said im new and I COULD USE SOME HELP PLEASE.