www.iFourWinns.com

Copy that, Ill give that a shot tomorrow. Thanks again Crossram. I messed with the idle mixture screws but Ill zero those out again, then play with the idle speed screw. Ill report back tomorrow afternoon-ish.

Thanks again!

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1987 Sundowner 195, 4.3 OMC " Z boat"
1983 Wellcraft 248 Sportsman, 3.0L OMC Sea Drive "Born Again"
9' Patriot 40lbs TM "Quack Addict"

Set the mixture screws at about 2 1/4 turns to start

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1989 245 vista
5.7 cobra

When you adjust the timing "less advanced" and the engine dies, does it:
1. Get super rough (mis firing) then die, or
2. smoothly loose power/rpm then die.

#1 supports a distributor problem
#2 supports a carb/mixture problem

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"Knot Easy" 2000 Horizon 240 Volvo 5.7GS /SX
tow: 2017 Honda PILOT EXL-AWD
prev. boats:
'87 Chaparral 198CXL 4.3 OMC Cobra
'69 Jetstar 16ft Ski Boat, 115hp Yamaha
'68 Aluminum Jon Boat, 3hp Sears
'64 Water Wings

(Find a mechanic with a significant amount of grey hair, and he should be able to fix this)

x2

I would, and might if I can't figure it out. First I want to do everything I can to figure this out. Believe it or not I can figure out a set of points! I ain't old but I'm no spring chicken either

_________________
1987 Sundowner 195, 4.3 OMC " Z boat"
1983 Wellcraft 248 Sportsman, 3.0L OMC Sea Drive "Born Again"
9' Patriot 40lbs TM "Quack Addict"

Hey I resemble that remark lol....
Have you tried to turn the engine right to TDC on the compression stroke, and re-install the dist so the rotor's pointing at #1, it seems that this is what needs to be done to get back to a baseline to troubleshoot it. Keep in mind that you must make sure that #1 is on the compression stroke......

https://www.dropbox.com/s/sbp82qvwo4m1l ... s.jpg?dl=0

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88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

It didn't really idle down smoothly or get super rough. It kinda stumbled a little before it died. At first I was hesitant to adjust the idle screw since that is one thing I haven't touched. However, after setting the timing...I don't know how many times, I took the advice to adjust the idle screw. I also bottomed out mix screws and turned out 2.5 turns.

I turned the idle screw about 1/2 turn like Crossram said it raised the idle plenty to drop the timing back to 6* (Im running at least 93 octane). The idle still SOUNDED high so I brought the idle down. I didn't notice but it seems like I turned the idle screw down to where it was originally. She runs great and the idle SOUNDS like it is 550-650. I really have to get a tacho. That begs the question; I don't want to redo the entire gauge cluster so, I can I replace the tach? Surely they don't sell the "knight rider" style gauges anymore?

Gents, thank you so much for the help. I will run the boat like this and, if my dist. turns out to need replacement or work, I will do that but...Ill see how she runs in the water like this.

_________________
1987 Sundowner 195, 4.3 OMC " Z boat"
1983 Wellcraft 248 Sportsman, 3.0L OMC Sea Drive "Born Again"
9' Patriot 40lbs TM "Quack Addict"