Help ID My Motor

[rhider]

This is what I know... Johnson 90hp OceanPro (from cowl hood) 2 stroke, premix fuel. 22.25" drive shaft (tip to face of foot) 13 spilne prop shat, 5.5" long.

This is on a February 2000 manufactured Muarell pontoon. I believe this motor was only made between 1999 - 2001. Tag is missing on pivot bracket but I found some numbers on the block and freeze plug.

I need to replace or rebuilt the lower unit as reverse gear has failed. Gear sets are over $300 then add $50 more for seals, but I can but lower units for $150 complete.

We use this on a private 60 acre lake for sunset rides, nothing major so we don't want to invest a ton.

What year lower units will fit this?
Is it a strong motor to keep or should we replace with a 4 stroke? (This ines a bit smokey on start up, and a hard start issue)

Appreciate any advice as this is our first boat.

 

[racerone]

This motor model was last produced in 1998 !!------Likely a shift rod adjustment issue.-----Hard starting may be due to mistakes made in your starting procedure.----Start with posting exact compression values for further help.----Decals have been replaced to make it look like a 2001 model.------Lower unit is definitely / guaranteed to be off an older crossflow and not a 60 degree looper.----This could be a 1990 model.-----That is my humble opinion.

 

[rhider]

This motor model was last produced in 1998 !!------Likely a shift rod adjustment issue.-----Hard starting may be due to mistakes made in your starting procedure.----Start with posting exact compression values for further help.----Decals have been replaced to make it look like a 2001 model.------Lower unit is definitely / guaranteed to be off an older crossflow and not a 60 degree looper.----This could be a 1990 model.-----That is my humble opinion.

How did you know the motor was last produced in 1998?

With the lower unit off i can shift to drive and it locks in, neutral is fine, reverse never engages. When it was assembled and on the boat it made a horrendous grinding noise shifting into reverse and never engaged. I just want to get back on the water cheap. What lower units can I use?

 

[racerone]

I can identify that style of motor in less than 2 seconds !

 

[rhider]

I can identify that style of motor in less than 2 seconds !

Ok, how do I identify it if I chose to rebuild it? How can I get the true model number and manufacture date? Is it worth revuilding or just buy a trolling motor to putt around with.

 

[racerone]

I believe these are great motors and worth rebuilding.----If you do not want to post compression values I can not be of any help.-------Look up parts on this page.-----Click on the orange line above and start your search.

 

[flyingscott]

How did you know the motor was last produced in 1998?

With the lower unit off i can shift to drive and it locks in, neutral is fine, reverse never engages. When it was assembled and on the boat it made a horrendous grinding noise shifting into reverse and never engaged. I just want to get back on the water cheap. What lower units can I use?

He knows because the motor is a 90 degree crossfow engine. The exhaust bubble and the fact it does not have the OIS ignition also tells you its a crossflow engine. The 90 degree V says it is wider than a 60 deg looper block. They were last produced in 1998 and were known for rings breaking. Which is why he asked for a compression test. It could be a 110/112 or 115 engine, essentially all the same.

 

[racerone]

Poster is likely ready to invest in a " new is better " 4 stroke motor.

 

[faztbullet]

This motor is a pre 1990 as it does not have the Fasttrac trim