1988 johnson 150/reciculation valves???????

[Imissedem]

Just a couple more????????ssssss.You prob. seen my recent dilemma on this motor.Well here is the update.new plugs/new coils/new fuel filter/new water seperator/New impella/carbs cleaned and checked out.Probably more but cant think off the top of my head what else.......So i still have the problem with #1 and #6 fouling out./////and it just doesnt want to run good,floods out /idles high/lot of smoke.I check the recirculation valves and some are plugged up .cleaned them up and #6 valve cant even spray carb cleaner through it.Gonna change all 6.What do you think has this been my problem all along???????? I HOPE SO I AM GONNA BE LOSING IT PRETTY SOON............what do you think??????????????????????????/

 

[Imissedem]

Re: 1988 johnson 150/reciculation valves???????

ANYONE??????????? Anyone ever have the same situation or problem?????? ???Thanks john..........

 

[chubcobear]

Re: 1988 johnson 150/reciculation valves???????

I am no outboard mechanic, but 2 of my 4 recirc valves on my v4 J90TLCUR were plugged and it did NOT affect my engine performance. It was easy to replace them and run new 1/16" hose. I have learned that recirc hoses plug rather quickly and then the engines are running like older engines (fine) which had no recirc valves and hoses (system). Perhaps, you should look somewhere else for your problem.

 

[psteurer]

Re: 1988 johnson 150/reciculation valves???????

I did not see your recent posts. But do you have the primer solenoid valve in the off position? This the black cylinder that has a red lever on the top. The red lever should be pointing over the black cylinder (if you are in the boat it would be pointing away from you). If the red lever is pointing at you, then you have it in the manual (on) position. The result would be too much fuel being provided to the carbs. The main time you have it in the manual position is when you are trying to pull start the motor in the event of a battery failure. Otherwise it is kept in the off position.

 

[Imissedem]

Re: 1988 johnson 150/reciculation valves???????

The choke lever is in the proper position.There is a crack in the red handle and when you turn the handle forward gas does leak out the handle.Is that normal or is it possible this could also be a problem??????Thanks again JOHN..........

 

[cdoliver]

Re: 1988 johnson 150/reciculation valves???????

Couple of things:
Usually when it runs rich, the idle is lower in my experience. When you did the carbs, did you set the floats parallel to the carb with it upside down? Also, does the spark look as strong on those 2 as the others when you checked it?

 

[Imissedem]

Re: 1988 johnson 150/reciculation valves???????

Couple of things:
Usually when it runs rich, the idle is lower in my experience. When you did the carbs, did you set the floats parallel to the carb with it upside down? Also, does the spark look as strong on those 2 as the others when you checked it?

I did not check spark since changing new coils.Just thought it is odd that i cant get carb cleaner through the 2 valves on those 2 cylinder recirc. valves.# 1 and #6.I dont know but maybe its almost time for the mechanic to look at it and not the carpenter...........

 

[iwombat]

Re: 1988 johnson 150/reciculation valves???????

John, yes that's a possibility. If your primer solenoid is leaking it could be leaking into the manifold as well.

 

[cdoliver]

Re: 1988 johnson 150/reciculation valves???????

I'm sure you know those recirc valves are check valves and you should only be able to blow through it in one direction. Check the spark. There's more to spark than just the coils. Also as iwombat mentioned to check a leaky primer solenoid pull one of the output hoses and start it to see if it is leaking. has a linc and sinc been done. Properly?

 

[Imissedem]

Re: 1988 johnson 150/reciculation valves???????

John, yes that's a possibility. If your primer solenoid is leaking it could be leaking into the manifold as well.

That primer solenoid goes to the carbs only doesnt it/there is only 3 hoses 1 to the top of the back on each carb.But yes there is a crack along the round part of the red handle.And possible it carries to the inside.

 

[Imissedem]

Re: 1988 johnson 150/reciculation valves???????

I'm sure you know those recirc valves are check valves and you should only be able to blow through it in one direction. Check the spark. There's more to spark than just the coils. Also as iwombat mentioned to check a leaky primer solenoid pull one of the output hoses and start it to see if it is leaking. has a linc and sinc been done. Properly?

That is the other problem i cant even spray carb cleaner through either way.I do know it only goes one way.2 Out of 6 are junk........Maybe we are getting closer.........

 

[Imissedem]

Re: 1988 johnson 150/reciculation valves???????

Just took the choke apart and it seems that the crack goes all the way down the red plastic to the rubber o ring. This could be the problem i hope.Someone must have turned it cracked.Sucking air or i think it is like the choke is open part way all the time.This i am hoping why i keep flooding out and fouling out.........Gonna say my prayers on this one............

 

[psteurer]

Re: 1988 johnson 150/reciculation valves???????

If you want to do a test to see if the primer solenoid is causing your flooding problem, just disconnect the primer hoses from the three carbs. If you motor runs well, then you have a leaking primer solenoid. I would disconnect the primer hoses after you do a cold start otherwise the motor may never start without the primer. Once the motor is warmed up, you can disconnect the primer hoses and run the test.

I have a 20hp Johnson with one carb, and the primer set-up on that motor is weird. From a plastic T, one primer hose goes to the back of the carburetor and the other hose goes to the bottom of the intake manifold. It says in my OMC manual that the bottom hose is a recirculation hose and the top hose is a primer hose. The primer nozzle on top of my carb keeps getting clogged up and then the primer does not work, so I must have some crude coming up from the bottom of the intake manifold. I wonder why OMC decided to have all the old crudy oil from the manifold being recycled into the primer system.

 

[Imissedem]

Re: 1988 johnson 150/reciculation valves???????

That primer solenoid goes to the carbs only doesnt it/there is only 3 hoses 1 to the top of the back on each carb.But yes there is a crack along the round part of the red handle.And possible it carries to the inside.

Well here is where i stand.Changed the 1 recirculation valve/the primer solenoid.Well it fixed something/running a lot better/ but not 100% in my eyes.maybe 80......Seems to be using a lot of oil./still very smokey and idles a bit high.Think i am gonna try running on fuel mix with disconnecting the vro.I do have the manual but just wondering how to turn down the idle a bit.Thanks for everyones help........John

 

[Benny1963]

Re: 1988 johnson 150/reciculation valves???????

check you spark with timeing light .is your timeing on the money .
i run a v6 crossflow 175 ,the recirc valves will effect idle
what plugs are ya runnin .the primer selinoid will cause the motor to load up the rebuild kit is cheap and they also sell one kit with fogging attachment
if your loading two cyls bad then ya may have a carb prob on those two
may be breaking down the ign under load .put it in the water load it up and check every cyl,with timeing light looking at the strobe for break down