I recently purchased a used Yamaha jet boat and the (2) throttles go back to trolling speed if I do not hold them up. This is my first jet boat and was wondering if this is the way they work. I have only owned outboards and the throttle stays wherever I put it. I asked a Yamaha dealer and he told me it was the way they are for safety reasons, so the boat doesn't go out of control if something happens to the driver. I thought that was why there is a kill switch. I want to use it for skiing, kneeboarding and such. It seems to me it would be hard to keep a consistant speed to do so. If anyone has any advice I would be greatly appreciated. Thanks