IamEdZ

follow up:

ok so as i said i am new to this boat and love it... so i read the merc bulliten and have just tried few different things..
been running the blowers as much as possible..also opening the engine hatch much as possible... kinda annoying but the boat has not vaperlocked since i been doing this.. so ill slow down idle in for like 2 min with hatch 1/2 to 3/4 open and its been fine since.. so maybe i just not operating it properly.. but agree with last poster over winter i am gonna revamp fuel system might procharge and just do whole new fuel system anyways... but if not i am gonna move water seperater as suggested and run new lines..

but it has not done it once since i been venting the crap out of it...

Adams Fastec

My engine very rarely gets over 165 and I am having almost Identical problems and changed or checked everything you have on almost the same boat and am new to the boat as well. Maybe it's a Formula thing, lack of airflow through the hatch at idle? Mine quit me and my young family last weekend and would not start until next day. I was really wanting to find something that made me feel confident it was fixed to try again but I've seen nothing so far.

Rossman40

I had a similar issue, after running would die, sometimes on a cold start. Shifting in and out of F and R would die. Turned out it was a throttle sensor of some sort. $85 dollar part and runs perfect. Private message me if you want more details.

babalu

have you tried giving throtle when engine is warm and then start engine ?
if it starts , you probably have problem with IAC valve