We have the exact same year motor doing similar. Motor ran great until I forgot to open vent on a plastic tank causing it to collapse. After that it would bog down under a load and not plane out. We changed plugs, power packs, seafoam thru carbs and replaced fuel line to tank, still bogs down. Any other Ideas?
85hp Johnson bogs when trying to plane
in This Old Boat
Posted · Edited by Afdinsp164
We have the exact same year motor doing similar. Motor ran great until I forgot to open vent on a plastic tank causing it to collapse. After that it would bog down under a load and not plane out. We changed plugs, power packs, seafoam thru carbs and replaced fuel line to tank, still bogs down. Any other Ideas?