Sea Doo Challenger 96 bogs down

[nbodnar]

I recently replaced a blown fuel line going from carb to carb. Now the boat will throttle up and bog down and back to high throttle again without touching the throttle stick. There is a small air bubble in the line I replaced. Would this effect the performance that much or do any of you think it’s the carburetors.

 

[mikidymac]

Yes and you might seize your engine from running lean.

You need to service the entire fuel system and I would rebuild the carbs with new Genuine Mikuni parts.