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Not sure I should help a future blowboat owner??? :)
The nuts are a standard 5/8 locknut.
I use a wobble socket.
Just make sure the mounting hardware is installed right and the alignment is...

Any "slight bend" will get worse as you accelerate.
Hook up the hose and start the motor. Put it in gear and check the propshaft for wobble???
The way to check for a leak is to drain the unit and...

The pump with site bowl.I think you might be able to remove the bowl if you cant find the gasket.
Install a filter between the pump and carb.
Pics of the carb?
No idle or poor idle.The carb has a...

Any 80-90 weight gear oil will work.
Mercury makes a really good gear oil.
Any water in the unit?
That old, just make sure the seals are good and it passes a pressure test.

Guess I should have asked what are we working on? Bolt at the prop shaft??? Bolt at shift shaft??? Pics.
Depending on the unit? There are different methods of repair?

Can you explain how you set the timing? Usually the timing doesn't get "OFF" unless the linkage breaks or someone works on it.
You static time or dynamic time it? If the timing is too far off you...

It's a 10in by probably a 24/26 pitch. Like he said no neutral or reverse.
Back in the early 80's the 85hp Force force set a record for speed and I think it's still stands (I think (gettin old)it...

The pics need to be resized to be posted.
The comp could still be good and still have water.
No adjusting the timing with the wrong plugs wouldn't make one plug cleaner.
Why you messing with the...

Backfire sounds like the key wasn't installed right?Yes you can shear a key from hitting something.
Maybe do a compression test before you try anything else?
Check the magnet under the...

Unattended ?? It's best to be there.I was working on a boat,had fitted the hose and muffs was gettin ready to turn the water on and do a tune up. I got out of the boat and found the yard boy...

Once you put your boat in salt water. There is very little you can do to rince,clean away the salt.
It gets in and no amount of flushing and washing will remove it all.
I found adding a zinc to the...

It is part of the bellhousing tightning bolts,not a big deal.
Just re-route the cable to the next bolt and use that for a ground.
You have enough other bolts and locating dowels to hold the BH in...

You probably have that cable.the recall was 20+ years ago.

750$ to replace the cable?? WOW!!! I'm gonna move to NY and get a job.
What might be happening?The shift mechanism might be gummed up.
Remove the drive and check the shift mechanism at the...

Pics of the pump and hoses?

On the side of the upper is a Cobra sticker.
Under that is a big slotted screw head.
It's a casting plug,OMC sthought NO-ONE would ever look under the sticker or that the glue would come unstuck....

Your in the OMC section,someone will move you to the right place.
Year,seril#
No gears to engage??
Once your in F and all the nuts are off.
It "should" come off??
Sometimes the gimbal siezes on...

Motor off,unhook the shift and throttle linkage.
Shift the motor by hand,turning the prop with your foot as you shift.
F N R Then shift again and find N
Then at the shifter,shift FNR and then...

If it's the square plug on the bottom of the motor on the exhaust side on the spacer plate.
It's a plug for the water passage.

If the exhaust exits through the lower unit housing [not through the props], this would be one of the later main suspension fork and pivot tube drives. [no gimbal suspension system]
If you have...

Motors a Force.
Some of the connections could be Mercury or Force.Depending on the model???
Need pics of the linkage.
With pics and the serial/model# I can get a better idea of what you have....

Install a filter between the pump and carb.
At Wally World,Automotive,filters.G-2 G12 depending on the hose size.

Like Wick says deep in the bucket, you need to be at least 3" over the cavitation plate.
Yesterday I fixed a friends outboard(new imp,gasket)
We live right on the Indian River in Fl.
He comes...

The plugs should be the permagap plugs not the electode type.
The buhx are permagaps,not sure about the others.
I "think" the jap plugs,the heat goes like this, the last letter is the heat...

194207
They sell a gasket sealer that's gas resistant.maybe a small bead on the tear?
The hole behind is the vacume lead for the operation of the pump.
There is an X shaped gasket that fits...

Seafoam won't work as good as Mercurys powertune or OMCs product.
Good luck on a decrb.Usually if it's that bad it's THAT BAD and a decarb won't help.
Fill out the profile.You might be close to...

Usually NO! Like thelmuth said it needs to come apart and re-assembled.
Be very careful when taking apart.
The cover of the shift shaft can be warped if you pry on it.
Remove all the screws and...

When done, both seals will be installed in the same direction with the lip and tension spring aiming towards the rear.
The front seal works hydraulically to prevent the grease from escaping.
We...

The lower unit ratio must be the same or the lower unit swap won't work for your engine.
2.15:1 for the 4 cylinder, 1.89:1 for the inline 6, and 1.61:1 for the V-8.

Make sure that you are not...

The history makes a difference.
The not getting above the 4200 "could" be the wrong prop.(for the future)
Yea and low comp.Anything done other than a real fix is a bandaid fix and the cancer 's...

Standard tourqe for a 1/4X20 is 70
Book says 130in.pounds.for the head bolts.

1st check for the flywheel key shearing.
On the flywheel is a single timing mark and 3 marks together.
The single is to check for TDC.
A long thin screwdriver,remove the top plug(easier to turn...

194085
What's the compression #s?
A clean plug is not good. Switch it around and see if it cleans the other.
Like food says a clean plug is getting water or not getting gas?
I had a head gasket...

194083194084


The muffs are the one the 50 needs.
The impeller can't be put in wrong. It will orient itself as soon as you crank it.
If you don't have the right muffs you need to put it in a...

There is only 20# of tourqe on these bolts.
Try a 3/8 socket and if it doesn't come easy?
Then you'll need a hammer,a small propane torch and PB Blaster or WD-40.
If it can set for a few...

Thank You,Gerry. Will do.Jerry

How do you change the trim motor on a 2002/125 Merc? OT511345
It's reallllly rusting BAD.My friend wants to change it. And before I start, I want to know how to change it.
Any U-tube videos?...

It seems your luck might have changed!! Usually the manifold cracks and it's useless.
Try putting the plug back in,use a good sealer,then test it for leaks into the exhaust passages/

No water in the oil: means that it's unburned gas/oil comming from the carb and filtering it's way through the motor and leaking out the easiest point. When I find a motor doing that,I use the Purple...

If they suggest it it's possible??? That's the first I have heard of that. Maybe someone else has.
I also heard that you aint supposed to mix the blue and black units.Again I never had a problem....

The low comp on #4 could be just a bad head gasket.
Any water on the plug?
Most of the time I've found the lower cylinders,the head gasket goes before the top ones.
The gaskets easy to check.
The...

The setting on the carb: 1 turn out from lightly seated.That is the inital setting.

The oil? It could be unburned gas/oil leaked from the carb.
Check the lower unit oil for water.
To check the...

You'll want to use the open bearings since your flywheel cover has the grease fitting on it.
6206 rear bearing... 6007 front bearing in a good quality brand.
Seals are 35x62x7mm rubber...

Check the timing?
Try moving the flywheel side to side.
Does it stop after 2500?

If it was winterized,there should be no rust or corrosion in the bearings?
But setting for 8years it could have gotten moisture in it.
I've seen motors set for 9-10 years,clean carb and it fired...

They installed 2 different pumps on that motor.
One pump housing came with a stainless insert.
The other just a potmetal housing.
Both work great, just use a different impeller.
F523065-1 without...

4-5 trips?? Not sure I'd do it every 4-5 trips.
If you use anything to remove carbon,your removing all the protective oil on the bearings.
1-2 times a year maybe 3 if you troll a lot.
Seafoam is...

Now I can help a bit more.
Swap the leads around and see if the spark follows the coil or the pack?
There are a lot of used packs on e-bay.
I had trouble with the leads on one of my motors and...

The red probably goes to the first post on the solenoid.
The color code way back then(brown) wasn't used so no telling what it's used for?
The solenoid MIGHT have 4 posts maybe 3 ???Pic??
The post...

Remove the hood and check the linkage.Make sure it's getting full travel?
Check for water in the gas?