I have a 76-77 85hp Merc.Electronic Ig. I lost #4 piston & rings & lower bearing. I had #4 bored 30 and replaced upper & lower bearings. Reeds all look good & gaps were all correct. Boat rain at 35mph + before.(Tach.not working) Motor started in tank & ran good.Took it out to put breakin time on...
I have 73 or74 85hp merc. I have cleaned and rebuilt carbs. It will run at low speed and run like crazy at top speeds but boggs &stalls if I Gun it . Please help! Thanks