throttle problems

]I have a beautiful 1998 Challenger 1800 it is sharp the engines have been completely rebuilt and are very crisp. I had to have the carburetors rebuilt and we ran into problems the bodies on the carburetors are shot and they're being told that I need new ones. Sea-Doo is discontinued the carbs...

Hi, I'm looking for some advice about a throttle problem on my 1998 Seadoo Challenger....... I changed the steering cable myself and since then I'm having throttle problems. Both engines idle at about 3500rpm out of the water, then if i put the boat in Fwd, revs increase to approx 6000...