Johnso 90HP 1991yr

[sfmaster]

:redface: Today I took the boat out after changing all 4 ignition coils , spark plugs and lower gear oil. Well, I went out and when I put it in shift (forward) it made grinding noise. But it ran! While running it will lose power and I had to keep pressing the choke button. Also while running it make a forceful bang like trying to pick up speed , but it doesn't! I quickly took out the boat and went home. I started up the engine to flush it no problems, I put it in gear (forward) works great. I then checked the lower gear oil that I had recently changed and it was a milky beige color. Almost look like cream. This does not look normal at all! Anyone have any idea whats going on ?? Also , while flushing I notice that water was coming out of the lower gear where the base seperates? Could the lower gear be mixing water? and causing failure to the engine?

Any help will be appreciated?

Thanks!

 

[tashasdaddy]

Re: Johnso 90HP 1991yr

pressing the choke is a fuel delivery problem. probably dirty carbs. the bang may be a clutch dog in lower unit going. the milk shake is water in the lower unit.

 

[ezeke]

Re: Johnso 90HP 1991yr

Was there water in the old oil? If not, you may not have put new seals on the fill and vent screws when you replaced them.

Water is supposed to come out of the holes where the midsection joins the gearcase.

Check your ignition coils again, you may have switched the wires.

 

[sfmaster]

Re: Johnso 90HP 1991yr

Yeah, the old oil was milky also! That's why I changed it. I'm gonna take it in to get the lower gear maintenanced and the carbs as well. Thanks! for the replies... I wish I new how to clean the carbs, lol:redface:...


Thanks Eddie!

 

[sfmaster]

Re: Johnso 90HP 1991yr

Is the clutch dog easy to change or repair? Anyone have a pic or site I can see it being installed or removed?:redface: