1993 30hp Johnson outboard bogs down

[joshmuhlstej]

It starts fine, first pull and will run perfectly for about a min full throttle then it just starts to bog down and it seems like its loading up and bogging down. I can run it on about quarter throttle and it will run fine, but once I try to give the full throttle it just bogs down. It never fully dies though once I let off to half throttle. I've put new gas in with some sea foam and changed the fuel lines, but that wasn't the trick. One thing I have noticed is that I don't think the throttle plate is opening up as much as it should, but I'm not familiar with outboard motors at all. Any help would be greatly appreciated.

Thanks, Josh

 

[BonairII]

Re: 1993 30hp Johnson outboard bogs down

Find your model number and post it here. Search "Top Secret Files" here for some great info. Get yourself a spark tester to check for good hot spark. Make sure to read about sync n link here also to adjust your timing to assure that throttle plate is fully opening.
Being new to outboards(as I am)...the Top Secret Files will educate you on carb rebuilding, impeller replacement, and a host of other common maintenance procedures, and common problems.

Lots of info here. Do as much reading as you can.