[ctandc]

The best way to use seafoam is to do it the old fashion way.
Get the engine up to temp.
Now open the hood. Drizzle the seafoam into the carb, (air cleaner off of course) working the throttle linkage with your hand to keep it running. When you get close to using half a can, dump more in until the engine dies.

You can also do this using a full time vacuum hose from the engine, using the hose like a straw.

Let it sit for a good while.

Go back out, crank it up and go for a ride. Charge your neighbors for the mosquito treatment you’ll be doing. It will smoke like a freight train, then clear up.

I’ve done this a thousand time it seems.

To be fair, we used to do the same thing with ATF or water.

Seafoam straight out of the bottle at room temp won’t clean carbon. That’s not what it was designed to do.

Good luck.