ok my unlce is gunna give me his 1991 sea doo sp and it has a bad sbt engine in it,(after 3 years.) and i was wondering what i should do, if i should bore it out and then put a kit in it or what kind of engine it has in it and if i could put a new and bigger one in it, and if so is there any alternate to sbt, and how much more expensive would it be?
thanks alot