Recent Posts  By   (Read times)

Ok..There is this squeak on my scooter.
It sounds like metal rubbing against metal.
It sounds like something in need of oil.

I looked all around trying find this squeak.

Here is the weird thing...
It changes pitch when revving the engine, so one would think it was in the engine.
So I looked and looked and nothing.
The engine runs great and there is no problems.
Plenty of oil and it's flowing.

But that's not even the weird thing..
The squeak is not even in the engine.
Leave the scooter off and just shake the scooter and it squeaks.
You can even change the pitch by how fast you shake.
It's some where in the frame and it's not even in the suspension.
It's in the frame and the vibration of the engine is making this part squeak.

But I can't find it.

Any ideas?

Eh.. It's German, it doesn't make any sense.
How is this pronounced... (Doy-ch land)
Deutschland?

We're also talking about Chinese scooters here.

It could just be a mistake by the person who put it together and didn't care and just left it.

You're going to have to give more detail.

What does bog down mean?
Does that mean it ran for awhile struggling to run and then on it's last breath it finally clunked out?
Or does that just mean you took off and it was running and then it just stopped working?

Also..
What does it do when you try to start it?
Is the starter motor turning?

Have you checked the spark?

Have you adjusted the valves?

People will help if you give more details.

It looks like an old film canister with wires coming out of it.

Usually under the front section where the horn is.

Ok.. Here is an update that some might find interesting.

I redid the valves, and it still wasn't right.

I did them twice, once caused clicking and the other time the gurgle came back.
Each time I went to redo them, they were not the way I set them.

Now I will admit that I advanced the engine just by popping the ignition without the spark turned on.
I just moved the cam levers away from the rockers and then gapped the valves.
That's not the best way to do it, but is sufficient. Only something was wrong.
They were not the same when I set them. Maybe bad setting, maybe just heat manipulation.

So I decided I am going to do this one more time, this time I am going to do it right or at least better.
I pulled of the transmission cover and rotated the variator until the engine was in the compression cycle.
At that point, both valves should most definitely be closed.
So I gapped them right there.
I set the intake at 0.003 and I set the exhaust at 0.004 clearance.

I also noticed something wrong with the variator, but that's a different story.

I put everything back together, and it ran beautifully.
No knock, no gurgle, no clicking.

So I took it for a ride and I hit speeds that I rarely hit. The speedometer isn't accurate, but it was pushing 70mph I know.
When I got it that high, and it was still climbing, it started to hesitate at points. Like an engine cycle went around without being ignited.
I think it started running lean at that speed.
It's a 150cc, and right now I have a 110 main jet in there, and a free flow air filter.
I have a 112 that I think I am going to throw in there and see what happens.