Home › Forum › Ask A Member › 1977 Johnson 2 hp 2R77C Carb › Re: 1977 Johnson 2 hp 2R77C Carb
Do you know any service history on this engine? When was the last time it idled OK? Does it start OK, cold and hot? You say it has plenty of WOT power, so there is hope. Usually, when these things are "worn out", they are hard to start, lousy idle, and low WOT power.
I don’t think the order you placed the packing washers/nylon washer will affect idle needle sealing much. The fiber seal washers are placed closest to the needle tip, the nylon washer is placed closest to the packing nut.
The carb/mag plate sync could affect lowest idle if the carb is held open at idle, or opens too soon off idle. I definitely would put this engine on a boat and try to dial it in that way.