I have a 79-80 merc 7.5. Will start with 4-6 pulls the runs good but stalls at idle. What can I do?(compression is also good)<br /><br />Also, replaced pump 1 month ago. Little water comes out the tail tell. tried blowing through it ect. Still the same. The guy at the shop said That if it is not getting hot not to worry. It appears not to be getting hot. Is this o.k.?<br /><br />Thanks.