Question about Light Outboard Motor Boat Bass Fishing Saltwater Base

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Force 90 outboard locked in forward gear after impeller replaced

I must have misaligned the shifter rod. Is there a specific way to reset it?

Posted by AzVip on

  • AzVip Apr 09, 2009

    Lowered unit. Rotate prop counter clockwise and moved shifter rod clokwise, reassembled and work ok.



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I have fought with mine in the past also.
put lower unit and the control in neutral
remove all spark plugs and have a helper turn the fly wheel clockwise while you install the lower unit i had to use channel locks to put the lower unit to neutral
good luck i hope this helps

Posted on Jul 09, 2009

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1983 Johnson outboard . Model J25TECTE. Runs Forward/Reverse. Shift rod connection OK. Shift in neutral it runs in reverse. Do I need to change something in the gear case section?

you have removed the leg to replace the water pump impeller
the leg has the selector rod for the forward and reverse action
as the direction selection is a simple dog that moves forward or back to connect the spur gears and it was working before you pulled the leg off , then I am thinking that when the leg was reassembled that the selector was in a wrong position and now you are only moving it in one direction neutral or reverse instead of the 3 positions forward neutral reverse
nothing else can change except where the rod connects in the leg

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How do I free up a frozen outboard shifter

Hi Rick:
Don't know what unit you are dealing with, but stuck in my memory is the way the old Merc used to work.
There was a rod that rotated, and the shift mechanism slid into a slot. We only tilted removed the bottom end with the shifter in the forward position.
You may need to drop the bottom end to allow the shifter to be placed in the correct position.
I'm hoping that you are using the term "frozen" to describe "blocked", as another total PITA can happen when portions of the assembly become corroded. Loosening them up requires tha delicate balance of heat, penetrating oil, and brute force. Bearing in mind you don't want to set it on fire or break it.
I'd try dropping the bottom end, engage it in forward, place the shifter in forward, and carefully slide the bottom end back on.
Hope this helps.

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Please only marine mechanics reply I have posted a question about my 90 hp force outboard the warning sound starts sounding while running full throttle after about 15 minutes of running full throttle I can...

Is this motor used in salt water?
That warning buzzer on your motor is really only tied to the temperature. In order to triage sensor or overheat condition, I'd recommend an infrared thermometer to get a reading on the engine as the buzzer is sounding. There is a product that is like a glue stick which can be pressed against the engine which melts at a very specific temperature... not sure if it's around anymore as the remote thermometers are pretty inexpensive now. Is there good water flow out of the ports below the cowling on the back?

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1 Answer

Gear alignment on outboard motor

When the gear box ix in forward, it should make a ratcheting noise when rotated forward and should not turn at all when turning in reverse (or be resistant as your back spinning the water pump -don't do that) Once in gear (forward ) you should be able to mate the shift to the motor. I have removed the prop and nut and used a remote start to spin every thing together, but requires a lot of safety precautions.

If you are working on an older mercury, that shift rod can work both ways with disastrous results if you over spin the shifter to the back side of the detent.

Sep 17, 2012 | Boating

1 Answer

Gear shifter locked in forward gear

If the gear lever is loose,it's the gear connection rod that you disconnect to do a g/box drop.If its not loose, drop the g/box off the leg and the first thing you find might be the problem.A loose bolt,a jammed shifter.It will probably be a connection problem than a g/box problemHope this helps

Jun 24, 2010 | Light Outboard Motor Boat Bass Fishing...

1 Answer

I need to install a water pump impeller I just bought this boat I think the impeller is dry rotted I found a new one in the boat and also how to install the gear oil in the lower unit and what wieght oil I...

Usually you just buy outboard motor gear oil and that does it. (about 70 to 90) I think. Usualy comes in a squeezy tube for injecting it under pressure.
It needs to be injected from the bottom drain hole and you force it in till it starts to come out of the top drain hole.
Most outboards work like that so I assume yours probably will.

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1 Answer

How do i replace a force 120 impellar pump?

Most impellers are in the leg and require the lower oart of the leg to be removed by disconnecting the gear linkage and undoing the bolts that hold the lower half of the leg on, they are just above the water intake.Don't forget the bolt near the prop. Wiggle the leg and slide it down to remove, then place the leg on the bench. The drive shaft protrudes through the impeller housing, remove the bolts that hold the housing on and slide it off. When fitting the new impeller be sure to fold the fins in the correct direction. When re installing the leg be careful to align the cooling pipes correctly.

Cheers, Timo.

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Gear shifter for 40 h. p. mariner outboard

With your lower unit off have someone shift the engine into forward while watching the gear shift select shaft's rotation,let gearshift remain in forward,now place your lower unit in forward and reinstall. In the future just put engine in forward when installing a water pump as there won't be a need to move gearshift

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1 Answer

Adjusted gear shifter incorrectly. Cannot locate neutral.


Remove the rod altogether and get the lever in the position you want.

Once you're happy with that, pick up the rod and look at it. The threads at each end are the oppsite of each-other. One is right-handed (you turn it clockwise to tighten it up), the other is left-handed.

Take the two small locking nuts and wind them on to the correct ends of the connecting rod. DO NOT force anything if it feels like it doesn't want ot go, as you will cross-thread things and the assembly will be kaput.

Offer the rod up to the connecter at the foot pedal and the shift arm and gently screw in each end at the same time. Make sure that the threads match!! ie left handed thread on the right, and vice-versa. Once happy with the position, tighten up the locking nuts and off you go.

If you get stuck, re-post here and I'll help you further.

Ride safe!! :)

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