'63 Evinrude Sportwin 10hp question

Hey all,
all of a sudden im having issues with my 10hp evinrude. Took out the boat last week and she ran like a top as usual, coming off the lake my fuel got a little low and she started to sputter a little, but made it back to the dock safe and sound. Tried to go out fishing over the weekend and she really didn't want to start at all, usually starts on the 2nd pull EVERYTIME, this time I pulled on that thing for about 5 minutes before she cranked and she ran great once it got going. I recently had it gone through with a carb rebuild, new coils, plugs etc. Im no mechanic, but i pulled the spark plugs and they aren't fouled or anything. Just wondering if anyone has any ideas as to what would be the issue. Glad to be a part of such a great site, you guys are great!

Check your points again. Make sure they are set at .020 and are clean. Look up under your flywheel for a dark or black looking oily substance. You may have an upper seal leaking and fouling your points.

whats the procedure for a top seal on these 10hp OMCs pappy. can a shade tree do the job.

Best way is to split the crankcase halves. You don't have to remove the crank to do that job. Doesn't take long to do that job at all on these smaller engines. There are other ways but the chances of scratching up the crank or the aluminum crankcase is high.

Thanks pappy, I've got to replace the center gasket and was hoping that there weren't surprises waiting. Got bubbles coming out of the sides when running. Going to replace the seals while I'm at it.

does the power head have to come off

Is this a vacuum line? It wasn't connected under the motor.. Would this cause my engine not to start well?

Heck yes the powerhead has to come off. That doesnt take long either. I couldnt see the line you were talking about but when you pull the powerhead replace all lines and do clean work.