15 HP Force RPM changes

[mfry]

I just bought a 1996 15 hp force outboard for my 9.5' air floor dinghy.

It starts up fine runs good but there isn't much change in rpm at all in the upper end.

The weird thing is that whenever I go over waves or make a hard right turn, the RPM raises quickly and the speed of the boat increases considerably.
When I make a left turn the RPM drops.

I thought it might be an issue with fuel not reaching the intake in the fuel tank so i flipped it around and got the same result

Does anyone know what might be causing this and a possible remedy?
Thanks for the Help

(The person I bought it from said that he cleaned out the carburator and it's possible that he didn't put it together right)

 

[roscoe]

Re: 15 HP Force RPM changes

(The person I bought it from said that he cleaned out the carburator and it's possible that he didn't put it together right)

I'd say.

Try resetting the float level on the carb.
If that doesn't do it, you may have to rebuild the carb.

Before doing anything though, look for any loose wires and check for spark on both plugs.