The last two times I put the ski is in the water it has had a deep, throaty, sound when I give it throttle. It didn't used to have that sound and I cannot reproduce it when it is out of the water and hooked up to the garden hose, while on the hose it sounds totally normal. There is possibly a little lag in acceleration, but not much. Other than that it seems to perform normally.
Any ideas what the problem could be?
Any ideas what the problem could be?