85 evinrude 60 bogging out and dying ,will only accelerate when advance over spec

[74 supersport]

I have an 85 evinrude 3 cyl 60 hp engine ,just purchased ,was a rebuilt power head but has given me some headaches ,after break in ,double oil method.now I am on new fuel. I had hard time idling ,idle was racing up and down ,missfires etc ,found 2 bad wires and 1 bad coil,OH all the carbs ,were very clean. did link and sync and had it idling good on muffs in a barrelabout 2 ft deep.took on lake,started awesome,idled awesome ,warmed up,went into gear started to accel then it bogged down and fouled the plugs. only was able to get to run when I cranked the timing advance lever to 28 degrees,spec is 19,did this to get back to dock ,took it very easy ,checked cylinders and pistons with boroscope when I got home and they are ok,I had never checked WOT to see if the butterflys were opening fully(silly me ) so last night I moved the max throttle screw almost 4 turns to get the butterflys to open fully,and redid link and sync. my question before I take another regretfull lake trip is am I missing something ,my thought is without being able to have WOT ,on accel I fouled the plugs a few times and then it started running like crap. I had another post "evinrude timing question" but over 100 views and no replies,can anyone give me some insight. the only other visual thing I see is the top carb spits a little fuel out of the idle holes in top of carb body ,can feel it slightly spitting on your hand where as the others are fine,I checked the reeds and they are good,no damage and sealing ,look new.when I got home #1 cyl was only one that had dry plug,was very minor oil fouling on other 2 but I had stalled it ,gave up and electric trolled back to dock.I am leaving for vacation friday and I am stressed.
B.O.A.T stands for Bring Out Another Thousand. which I dont have.and I may not have a wife if I spend anymore on it. 1 more thing I noticed ,when reving it up with carbs only ,not advancing ,the timing does advance about 10 degrees.Is this normal? I thought these only had mechanical advance .thanks in advance ,no intended pun.

 

[fishfeatures]

Re: 85 evinrude 60 bogging out and dying ,will only accelerate when advance over spec

can you put up some photos of the starbord side of your motor? If you turned the screw 4 times to get the butterflies to become level then I think that you lync and sync isn't correct. Does the timing lever advance a bit before the carbs start to open ?
Also did you try pulling a spark plug lead off each cylinder when running to see if effected the motor i.e. did it stall or nothing happened.

 

[74 supersport]

Re: 85 evinrude 60 bogging out and dying ,will only accelerate when advance over spec

thanks for the response fishfeatures. well It was running it today again ,was going to set the pickup timing and it started running on 2 cylinders,and intermittently on 3 ,reving up and down again.I put the timing light on to see if it would pick it up and #2 was intermittently missfiring,all other cylinders were producing a consistent flash,I shut engine down,swapped #1 and #2 coil and the miss moved to #1,checked #2 and it was firing consistently,looks like I have another bad coil.tomorrow I am getting 2 and that will be all 3 new.I ran It on the muffs in a barrel 5 or six times before taking it on lake and it idled good,all cylinders were dropping out when wires unhooked.the #3 coil was intermittent too . hard to diagnose when it is working one minute/day and not next well I will repost after coils and pickup timing tomorrow.I may post some pics tomorrow if I have further problems.multiple issues on this motor have driven me crazy. the timing lever is way out as of yet as I couldnt set pickup timing on 2 cyl.thanks again fishfeatures