MAP Sensor maybe?

Originally Posted by
toksik
I will pick up the ethanol treatment and install the fuel/water separator. I'm not sure why my boat does not have one, but the in-line one is not sufficient in my opinion.
Thanks for the re-post!

I was having a problem with mine not starting this weekend (started up and sputtered for a bit then died, then it only cranks and cranks but doesn't catch), same thing happened last year about this time. Last year turned out to be the MAP sensor, so I unscrewed it from the top of the intake manifold, pulled it off, it started right up. I gave it a couple of hours, reinstalled it and it fired up, go figure. I'm going to buy an extra sensor and keep it in the boat in case it happens again.
06 Mobius LSV, GIII (now with 1100 in the port locker), perfect pass, wakeplate
Kicker KM10 Sub, dual batteries