Mercury Tilt switch in remote control question 88688a26

[zenzerovich]

I have a mercury OTO11788 125HP model 1125412wd. The remote control is the 88688a26 with integrated tilt switch in handle.

Issue : engine all of a sudden start to come up after a few minutes or longer sometimes.
I think it is and issue with control switch since I disconnected the tilt switch in the engine.

I have read a number of post but I am still not sure if I can replace the switch in the remote control in an 888688a26 unit. Has anyone done this before?

I am not able to remove the switch at the top of the T and was not sure if integrated into handle or how to remove the cover over the switch. There are now screws and I tried to prior cover off but it does not seem to budge.

I think it could also be a possible short in the line where if possible the voltage builds up enough to trigger the up side of the circuit.

1. has anyone replace a trim switch in the 88688a26 control handle?
2. do you replace the whole handle?
3. could it be a short in line that will eventually feed power back to the up relay?

looking for thoughts and advice on how to trouble shoot this.

thanks

 

[Chris1956]

Toggle switch on handle? They can get water in them, which completes the up circuit. See if you can blow it out with some wd-40 or equivalent.

 

[zenzerovich]

I just found this if anyone hits hits this issue. YouTube video on removal of cover on throttle handle to replace switch.

I used heat gun to loosen end cap and remove cap with putty knife. (narrow blade). Expect to replace end cap. The cap did not come off but broke 3 of the 4 blades connecting base to the cap. Purchasing new end cap on amazon and trying switch part 87-8m0046008.

The old switch had some corrosion when I took it apart. Looked like the outer gasket on switch was pushing down on the contact since it had broken down and stretched out. I cleaned the switch and put it back with out the gasket and the tilt works now. I will replace with new switch and cover.

 

[bicklebok]

I have the same controller. I had no idea the tilt switch could be removed.

 

[wn6ngp]

Mine was/is doing the same thing. Before I used a dremel tool disc to cut around that cover and get the switch out. After I got the switch out I lubed it up and it seemed to be ok so I put it back. Big mistake, the problem came back. I should have replaced it with a new switch. Should not have cheaped out like that. That switch must be a poor design or selection by merc since this seems to be a common problem.