I have rebuilt the carbs, new plugs and swapped the leaky VRO for a standard fuel pump on my 87 Johnson 40. It now runs great but it takes for ever to start. It will crank & crank, finally start sputtering a little and then run. You can turn it off and it will fire back up first crank. Idles good, shifts in and out fo gear without dieing. The plugs are wet during this cranking so it's getting fuel it would seem. So I am assuming spark? But it doesn't make a lot of sense because it runs smooth once it starts. Ideas? I haven't been around this motor long but it never started that well.