I have a 1985 75HP Johnson Outboard i just bought last year.  As of right now I put all new carberator kits in last year and cleaned all the orfices out.  What my problem is after it starts which it does no problem it wants to choke out after i put it in gear and ramp it up.  It almost seems like a electical problem, like maybe it is not hitting on all the cylinders?  But if I play with it enough it will take off and get up on plain and run like a top.  I have been reading over these forums and read that if you use a week battery it can kill your regulator which I have been useing weak battery.  Do you guys think that might be my problem.  Any ideas will be of much help, I am stumped as of now.

Thanks Mike

The regulator has nothing to do with how it runs, it's only for charging the battery and provides the signal to the tac for the rpm's..

Linc and Sinc and carbs are the main causes of what you describe. If your are sure the linc and sinc is right, the carbs is your next thing.

Knowing those carbs the way I do, I think the problem is with them. They are extremely difficult to get clean. They may look clean but even the smallest amount of deposit in the orfices will make them mess up. I've seen more than one good mechanic rebuild them just to have to go back and clean them again. I think that's one reason they charge about $200 to do them.

I have a set of 1 - 80 wire bits and a selection of piano wires I use to clean all the orfices. However, let me be the first to say, I don't recommend anyone use metal objest to carb jets and orfices in they are truely familiar with what they are doing. One ten thousandths of and inch (0.0001) makes a big difference in how that orfice perfroms. I only use the back side of the bits, never the cutting end but you are steal dealing with aluminum, brass and plastic, any forcing even the back side can remove material and open the orfice beyound specs. I've been doing this a long time and have a feel for what's going on when I use the wire bits. Tooth picks are the recommended tool to clean them with but they will not get into some of the orfices needed to be cleaned. You also need to make sure that little brass tube inside the larger tube in the center of the carb is clean all the way up through it. I do that with a piece of piano wire. I do not recommending the average home mechanic removing those expansion plugs. If the replacement plug leaks, you have all kinds of problems but if the carb is in bad shape, sometimes they have to come out.

A couple of cans of breakpart cleaner, something to clean all the orfices, compressed air, a good blow gun, a couple of hours of making sure every little hole in those things are clean, set the float level and you will probably find it will run much better.

There are always other things but the carbs are the number one problem about 95% of the time on that motor.