Valve adjustment questions By worzx (Read 353 times)

[worzx]

Hi!

I have a 139qmb 50cc engine and I have a problem with it. I would like to perform basic maintenance steps before going any further in resolving it, since the source of the issue is unknown. The first thing I would like to do is checking the valve gaps. However, this will be the first time I'm doing it.
I've searched for several tutorials and guides over the internet, but I never found any information about the gasket below the valve cover regarding to this engine. As far as I'm concerned, there is only a rubber gasket below it. I've read that this does not need to be changed/replaced. Do I have to replace it every time I remove the valve cover?

My other question would be about the gaps. Will .003 at the intake and .004 at the exhaust valve be okay?

Thank you all for your answers!

[jct842]

In our library are tutorials on setting valves. Gasket will be just fine to reuse. Scroll down on the home page.

[worzx]

Thanks, I'll check it out!