I have a older model 9.8 that I've changed the impeller out twice and it's still not peeing. Can anyone help me.

Have you tried disconnecting the pee line where it comes out of the engine? Often times I get a blockage right in the engine itself where it connects to the pee line, also sometimes it plugs up right were the pee line connects to the discharge orifice.

Just because you don't see it peeing doesn't mean the pump isn't working, it still might be cooling just fine. The pee line carries just a small portion of the cooling water being diverted to the pee line.

Muffs or tank? If muffs i would try it in a barrel. Could be plugged. If it has a thermostat that is where they usually get plugged. Check the old impeller to see if it's missing peices. Also make sure the hose inside the lower unit got hooked up right and isn't cracked.

When the missus in not looking, "borrow" the turkey baster ...... Fill it with water and squirt that into the pee hole with the engine not running. Start her up and watch it pee like a race horse. Clean and dry the baster and sneak it back into the kitchen drawer or nightstand if she keeps it there.

Mud wasps always pack the telltale in deeper than you expect

My first thought, Dirt Dobber.

A piece of weedeater cord comes in handy . I keep it in all my boat`s running these swamp`s and shallow rivers works great for dislodging blockages .

I had a 40 Merc and some kind of wasps kept packing the pee hole with cut pieces of leaves.

Moosetrot

Not if you stuff a golf tee in the pee hole when parked.

Another vote for remove feeder line into the block and run it to see if it pumps. Tip I've used for years is to put weed eater line in the pee hole when not in use.

The stainless plates may have grooves wore into them as well.

axel grease on the inlet and outlet helps also. Mudd dobbers don't like greasey paws

Kidney stone in the pee tube.

If you ran it shallow or in muddy water, it can easily get clogged. When duck hunting in big marshes, it is common.

Like other brilliant guys, I carry a custom tool to repair this issue. A piece of electric fence wire about 8 inches long. That way there is enough to fold up and not lose.

Best thing to do is pull it out of the water and run it on a hose on earmuffs. If water is coming out the exhaust, you are good to go. The bulk of the cooling water goes out the wet exhaust and the telltale means nothing except an indication water is pumping. Certain motors used the telltale to cool small, very important parts of the engine, but not on an older 9.8.

Yes, remove the hose at the engine and if water comes out, there is crud in there somewhere.