Bad oilpump?

[waqr]

Hi!

How do you now that the oil pump is bad in a GY6 50cc motor? I have a ticking sound that I can hear from the crankcase and since there is no play in the bearings I suspect the oilpump. Valve are also adjusted properly.

Also, in the manual it says that there are som seals that you should replace with the oilpump. Which seals are this?

Many thanks!

[waqr]

So this is how my engine sounds. Is it some weird sounds going on or am I only getting very picky about how the engine sounds?

[gsx600racer]

Have you checked/adjusted the valves?

[waqr]

Yes, intake 0.003 and exhaust 0.004.

[FrankenMech]

I don't hear a thing wrong, but then my ears are shot.