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Yeah.. seen that video and that's how I got the thing off, and how I put it on.

I guess I didn't bang hard enough though.

My clutch nut came off.
Not the one that holds the hole thing on, that big one that's hard to find a wrench big enough to work.

The clutch was replaced awhile back, and I have a wrench that will barely work, but obviously I didn't get it on tight enough.

When I took the main nut off, the whole thing jumped out towards me from the contra spring.

This time, I locked the big nut in a bench vice and hand cranked the pulley as hard as I could.

Hopefully that will make it stay on.

Any other ideas besides locking glue?
I don't want to use that on this.

I buy used and broken scooters and fix them.
Most of the time, the plastic is a broken up.

Some times I wonder what China makes worse... their plastic or their steel.
The plastic becomes brittle and the steel rusts so easily.

Any way...
Many times I have roughed up areas on the plastic pieces and rebuilt the part with fiberglass and resin.
You have to really rough it up and get it clean though, or the resin won't stick.

Aren't you talking about two different systems?

One is connected to the engine. The U-shaped thing in the picture above.

The other is connected to the gas tank, to filter out evaporated gas.

I had a scooter with all this stuff on it.

My advise...
Leave the one hooked the engine alone.
I don't remember it being hooked to the vacuum system, but maybe.

But the other picture looks like the canister connected to filter gas fumes.
If you don't live in a state that requires that, just yank all of that stuff out.

Just leave the vent tube for the gas tank.
You can put a fuel filter on it to keep dirt and bugs from going up in it if you like.
Mine had a little petcock type valve that I left on it for that purpose.

Yes, I thought I was getting super good gas mileage at first.
That is until I realized that the mileage was wrong, and I needed to divide it by 1.4 to get the right mileage.

Once I did that... I was getting your average scooter mileage... bummer.

There are different types of epoxy.

There is epoxy that you can repair your engine block with.

JB Weld should hold up under gasoline, and you can find it in stores.
Check online for different epoxies, but don't get any kind that is quick set.
Quick set = less strong and less adhesive.

Or just solder it.