Lately my motor wants to cut out on me when I give it some gas. My boat does have a hot foot. I also noticed primer needs squeezing to get her going but stays hard till I crank her over. I also noticed that when I give her gas and she wants to cut out that if I let off the gas she'll usually keep running. She only cuts out when I give her gas. I havent decarboned her in a cou[ple of years: could that be part of the problem. Any suggestions appreciated.