Alrighty the boats back and all is well except it won't run!

That's right...I'm a little disturbed.

Here's what she's doin.....It will turn over and start right up and dies immediatly.You can keep doin this over and over.It won't stay lit for a half second.

I assume it's electrical cause NO amount of throttle changes anything.

Now here's what was done to the boat.....Motor came out and had coupler,bellhousing and yoke replaced.

Bad ignition switch.Otto

Okay forgot one thing y....If I hold the key to start it....Ya know like over starting it...it will stay lit till I let off.......It ran fine three days ago!

Like Otto said, check the ignition switch. It is making contact in the start position, but not in the run position. I ran into this same problem last year. I couldn't convince myself that it was the ignition switch, because I could tell someone had just changed it. (the old one was still in the boat) Run a wire from the battery to the coil and see if it will run.

You answered your own question. The good news is it's fixed for $12. Otto

Since the engine was just out(and it worked before) I would think a wire is back in the wrong place. Or try wiggling the main plug by the shift cable. I had grief with that twice.

I had a intermittent problem with that main harness a year ago.But it would stop everything....all power would shut off for a second and then back on....So fast that you wouldn't notice it.

But when that happened it would only cut off after running for at least 20 minutes.....then it would start right back up and go on..Hmmmm

Is it okay to run a wire from battery straight to coil?

The fact that you ask that question tells me that you have never stolen a car.Otto

So those little ignition switches are pretty easy to find...Like auto parts stores and such?

It's got four wires going into it but two are on the same terminal.

So it has three terminals.

Please be patient with me I have had a VERY looooooooong day.