Originally posted by: RT8fish1nce on 2/11/2006 1:51:16 PM

sounds like it may be running too rich or a possible firing problem. pull a spark plug out and examine it.

Originally posted by: walleye guy on 2/11/2006 12:48:29 PM

can anybody tell me why my 91 johns. v6 wants to smoke like crazy when i leave shallow water??? when i get to deep water and trim out, it wants to stall and smokes and misses, til i nail it??? than it runs like a new one again ??? jim.

Originally posted by: walleye guy on 2/13/2006 9:32:37 AM

thanks rt8, my plugs seem to be clean? I replace em every spring all look good, any ideas on changeing the mixture? It is a two stroke with oil injection, never have messed with one befor, looks a lot more complicated than my previously owned motors. Thanx jim

Originally posted by: beetlespins on 2/13/2006 9:58:37 AM

i would get like a clymers book and read about it or talk to a mechanic. if it is oil injected i am wondering if the mixture oil/gas is different at a lower rpm than at a higher rpm seems i read that somewhere.i will have to look at my book for my engine.

Originally posted by: RT8fish1nce on 2/13/2006 6:31:15 PM

walleye guy try this forum for answer's.
www.MarineEngine.comand click on discussion board.
Look for a guy by the name of Joe Reeve's.
He was an OMC mechanic for 30 yrs. He will steer you in the right direction.
www.iboats.com has a forum also that Joe visits.

Originally posted by: walleye guy on 2/15/2006 10:38:58 AM

Thanks beatlespins, I heard that too,my friend and i looked at the injection system and it seems to be completely seald with no way to adjust? It makes sense cuz when i start it up after setting all week, it smokes like crazy for about a min.I have to have the engine tilted more than half way up about a mile down my creek cuz of depth, runs fine,,, than as soon as i enter lake erie and trim it straitit smokes, misses than i goose it and it runs like a new one. But man, you would think i just let out a smoke bomb!!! Im gonna try those sites rt8 recomended to see if i can get info, Hey thanx rt8, i realy appreciate you guys responding!!! This is realy a annoying problem,,, will let you know if i find the answer,,, jim

Originally posted by: Markiss on 2/15/2006 11:53:45 AM

Is your oil injection still working. I've got a 90 Johnson 200 GT that has the injection system removed. I mix my own oil - a bottle per 12 gallons and change my plugs annually.

It smokes a little on ignition but that's it.

Originally posted by: walleye guy on 2/15/2006 12:28:39 PM

i dident know you could remove the oil injection??? you think thats the problem ??? thanx, jim

Originally posted by: Badger on 2/16/2006 5:30:16 AM

I have a '95 70hp Johnson w/oil injection and the shop I had it at this past fall recommended removing the injection system and just mix the gas 50:1 instead. Seems that the OMC system is not a very good one like the newer ones with an injection pump, and they do have their problems. Since I have an on-board 32gal tank I found that impractical becuse I'm never sure how much fuel is going in and can't add oil untill then. But if I had portable tanks I would have done it.
But YES, you can disconnect the injection and just use the 50:1 mix instead.

Get a 6gal tank w/50:1 mix and plug it in to see if indeed the injection system is a problem. Make sure you un-plug the oil line from the engine.

Originally posted by: walleye guy on 2/17/2006 8:55:16 AM

THANX FOR THE RESPOND BADGER, IS THAT ALL I HAVE TO DO IS UNPLUG THE OIL LINE? OR UNPLUG ANY ELECTIC, IN SPRING WHEN I FIRST FIRE IT UP THE WARNING BEEPER GOES OFF TILL I PUMP THE OIL TANK AGAIN AFTER STARTING, JIM

Originally posted by: Badger on 2/17/2006 10:59:27 AM

I suppose you'd have to disable the warning beeper or leave the oil tank in the boat full. But first check w/dealer and find out the best way to do it. Mine is a tiller and the beeper is in the bottom of tiller. Just disconnect a wire. Also, test your motor on a tank of 50:1 fuel first to make sure that was the problem. It sounds like it is but you never can be sure. If you can't get the answers you need in your area, let me know and I'll call my guy on ths end for you.