Yes but not for his particular ailment. He's not experiencing vapor lock from what he's described.

I will have to check for that behind the tstat housing i didnt see it earlier. what i did find on the problem engine is on the coil it had green build up on post and on the wire also. the other engine coil was clean. i cleaned them both cause i didnt have time to buy wires but i want to test it first.

It can have more issues than just vapor lock. Remember, the VST is a big float bowl complete with a float/needle/seat type deal
+ with an electric pump in it....

There is a real fine screen in the VST that can get plugged. Had a 96 Scarab that had that issue.

My vote is with SB and the VST having issues.

I won't know till I get it out on the water for a good run. If it is the vst can they be removed or rebuilt or what do you do. I will have to keep a fuel pressure gauge on it I guess to see i take it?

So you saw my post and got the fuel psi tester on it ?

Another issue some have run into is the fuel pump 'lobe' in the sea water pump having issues.

i saw the post but haven't yet I was already home by then running down today to locate the Schrader valve.

my bet is vst issue,that is one of mercury marine,s biggest failures.