I have a 50hp 4 stroke evinrude that I think has a blown head gasket? It has water in the oil. When I pull the coolant/water drain lines that go to the tell tale (pisser) they will have air blowing out of them? Now my question, can I pull the head without pulling the whole power head? I have the...
I have been chasing a low WOT issue on my merc black scorpion 5.7. Done every test imaginable. Resistance Tested the coil the other day and the primary was right on but the secondary was only 5,700ohms, while spec calls for 9,400-11,700ohms. Does have unburnt fuel and as the days on the lake go...
Well I broke down and got a diacom program of my own. This thing shows EVERYTHING! My question is what should the duty cycle of the IAC be? At idle it's around 30% which I think is normal! but as I throttle up it increases with the throttle. At WOT it the duty cycle goes all the way up to...
I have a 2006 Gekko GTR with a merc black scorpion 330hp. My issue is that at WOT I only run 4700rpm or so. Checked by tach and perfect pass. Speed tops at 43-44. Checked by gauge, perfect pass, and GPS. This has run like this since I owned it almost two years ago. What I have done so far...
