The 3hp Johnson 2 stroke is a twin cylinder motor. Figure out a way to get the cover off, drill the bolt out if you have to, and put new plugs in it. Then put fresh gas with 50 to 1 oil mix and try it. All those need is fuel and spark and they will run forever. Try everything else before tackling a carb rebuild.
thats the ticket thanks, worked well, but got myself into a jam with putting a new waterpump in, having trouble lining up shift rod and copper waterline while getting the driveshaft engaged too.
there a trick to it?
turn the motor upside down or something?
what a pain keeping all three in line and getting that copper back intot he boot on the waterpump.
sorry I tackled this impeller replacement, that was a cinch but what a pain getting this lined back up!
thanks for any first hand knowledgeable help.