Update: I spoke with CDI about the regulator that I have on my motor. I was informed that the CDI aftermarket regulator has both the regulator function and the rectifier function in a single unit. When using that type of regulator, the original independent rectifier and original independent...
I've only owned the boat for 3 years and have had performance issues the entire time. The date on the Regulator and Rectifier is 2009 so they have been on the boat a while. I'm pretty sure with what I have read about the CDI Regulator is that it replaces the OEM regulator AND the Rectifier...
1987 Mercury 150
serial OB119610
CDI Voltage Regulator 194-8825K1
CDI Rectifier 154-6770
I am looking for a wiring diagram that shows the connections on a 1987 Mercury 150 that uses both a voltage regulator and separate rectifier. I am replacing the stator and trigger and decided to pull the...
I'm blasting and painting my manifolds on a gen 5 7.4. Is 500 degree ceramic coating sufficient? I'm mostly curious about the elbows at the head connection.
Pulled my head on my 454 after having the crankcase fill with water. In the process I ran a compression test and found that the #5 cylinder was 0 psi. All others were goo . The valves is sitting much deeper and the tension on the spring is much less. Did lose the valve seat? If so wouldn't I...
1993 Regal Ventura 8.3
454 Magnum Mercruiser
Bravo 1
460 hours
I need to replace my intake manifold due to corrosion and am struggling to find an affordable replacement part. 811575 is the part number listed. I have found a lot of them with oval ports but mine has rectangular. I am curious...
454 Magnum
Bravo one
Regal Ventura 8.3
Last Labor Day we hit a sandbar and experienced some overheating issues. Brought the boat home and winterized after pulling the tstat housing and flushing the motor. Over the winter I replaced all of the bellows and drive hoses. I also cleaned up the...
So I have been looking at my lower unit trying to find a way to change the oil. It has been confusing me since there is no lower drain plug on the side of the unit. It has the upper vent. After surfing the net I saw a post discussing that the "offshore" bravo ones have the drain plug behind...
Just put a rebuild kit in my Webber 4bbl carb. Looks like this is the first rebuild. All the bolts were still painted over. I knew to keep the primary and secondary jets separate since they're different sizes but I was really surprised to see that one primary was bigger than the other and the...
I am swapping my Mechanical fuel pump on a 1993 7.4 Bravo One. It has a combo sea water and fueI pump. Seloc Manual says its a 18-7288-1 which is what I bought. The issue is that the inlet and outlets connections are not in the same location. the outlet can be rotated by unscrewing the body. the...
My 7.4 mercruiser has left me needing a tow three trips in a row. The boat runs amazing as long as we cruise under 4000 rpms. We can go full throttle at takeoff and it runs perfect. If we cruise at over 4000 rpms it will bog down and die after a few miles. Only takes a few seconds between...
I had posted last week about my 1990 Four Winns not staying running unless the starter was engaged. Before everything on the Forum got deleted several people had given me some pointers on tracing down some problems. I found that the Coil POS connection was only at 4 bolts. After much tracing...
I have a great 18' Four Winns Horizon with a 5.0 HO Cobra I/O with a 4.3 OMC outdrive. The boat runs like a top. I just picked it up and thought that I would be running mid to upper 40's at least when running WOT. Sadly, I am hardly pushing mid to upper 30's. The engine RPM's are staying...
I have a 1991 3.0 LX with alpha one drive. WE were out a few weekends ago and boat was running well. at the end of the outing the starter crapped out. changed it out along with plugs. boat now stumbles over 3000 rpms. Plugs are sooty. runs fine not under load. HAS rebuilt carb, new cap, new...
