I would like to know how to tack off the lower end of an johnson outboard moter?

Question

this motor is a 90 hp out board model tll

Answer 1

1. disconnect shift linkage under the bottom carb.

2. remove the trim tab (scribe a mark across the edge so you can get it back like it was).

3. remove the retaining bolt from the trim tab cavity.

4. remove the other retaining bolt from the bottom side of the antiventilation plate.

5. remove the four retaining bolts from the perimeter, just above the antiventilation plate.

pull the lower unit off.

The shift rod height is adjusted by s******g it in or out, so don't twist it or else it won't fit when you put it back.

on reassembly:

1. put molly lube on the drive shaft splines (but not on top, there's not enough clearance).

2. the rubber o-ring just below the drive shaft splines -- you need that.

3. put omc gasket sealant (or some kind of anti-sieze) on the retaining bolts -- or else corrosion will set in & it'll be a ***** next time.

4. use 3m #847 or permatex #2 on the joint between midsection & lower unit.

Replace the impeller every two-three years as preventive maintenance.

Answer 2

JTex is right as usual, only thing to add is make sure you take the lower unit straight down, so that you don't bend the water pick up tube or the drive shaft when seperating the lower from the engine.