Suzuki 150SS scared of the water

[ktak]

Problem .Runs great on land with ears on,Will Not run in the water ,Pull it out of water starts just fine.We have rebuilt carbs and fuel pump new adjusters on carb,New spark plugs its a 1991 model and sat up for about 8 years,It starts and runs great on land sounds awesome On Land..Any ideas please

 

[JB]

Re: Suzuki 150SS scared of the water

Howdy, Ktak

Welcome to iboats.

Outboards regularly fool people who think they "run great" out of the water with no load or exhaust back pressure on them.

Your engine does not run great. It just sounds like it does when it has no work to do. I think it may have several problems.

Step one: Do a compression check. All cylinders should be over about 90psi and within 10% of each other.

Step two: Crank her up on the muffs and warm her up at idle. Then disable each spark plug, one at a time. If the idle drops or the engine quits that cylinder is making power, if the idle does not change that is a dead cylinder.

If there are dead cylinders in one bank only, you have an ignition problem. If you have dead cylinders side by side you have a carburetor problem.

You didn't mention whether you put a new impeller in her. If not, do that now.

Let us know the results of the above tests. We will use that info to suggest what to do next.