I'm having trouble getting my throttle to lock into the neutral position and it's very irritating when trying to start the engine. The engine's speed will also increase erratically sometimes. The throttle always ends up just a little behind or ahead of neutral position and it causes the motor to jolt when I first start up or when I'm trying to pull back into neutral it will just bypass it and go into reverse. This afternoon I was driving at full throttle (So I thought) for a couple minutes and then backed off for a moment and gunned it back to full throttle, this time the boat's speed increased so much that I nearly lost my bimini top and my hat flew off. I got a nice tatse of what my engine is really capable of, but why isn't it going this fast all the time? I know very little about marine engines and I'm hoping for a cheap fix.