Originally Posted by HDChopper
Yes dabnis knows
Berryman's B-12 products really work I really like thier carb cleaner it will strip a old carb of the crap of any kind ..
But personally I would check all berings on the lower end and see if there is any buildup of old oil that has turned to tar in the bottom , from your discription it sounds like drag from gears & shafts might be the grimlin ....
Interesting possibility!! could be if the engine sat unused for many
years? IIRC, Berryman's used to say "add it to your engine oil to free
sticky valve lifters" or something like that. the current container
makes no mention of that, however. It might be a consideration for the lower unit before doing open heart surgery on it. I would contact Berryman's
Part Cleaners and Degreasers
Maybe an air leak in the fuel line fittings. Many years ago on
old carbs with a whole lot of miles on them the throttle shaft to carb
housing fit could enlarge somewhat allowing a small air leak. Probably
not likely on an outboard used for recreational purposes?
Probably your ignition is OK but it wouldn't hurt to do a close visual check
on all electrical connections. A shop should be able to run a test on it.
Let us know what you find.