Is it normal for inside cylinder to look like this?

[Impossworld]

My engine is currently breaking in and I’ve recently taken my jug off and have noticed that the cylinder has weird scratch mark looking patterns. Is it normal?

 

[Chainlube]

Total normal looking, but if you drag a finger nail over them and you feel it, then the cylinder won't last much longer.

 

[ImpulseRocket]

Some cylinder scoring is normal with these cheap little engines. As Chainlube stated if your nail catches on it then it's on it's way out.

If the motor was thoroughly cleaned and the port edges chamfered properly before assembly AND good intake filtration is used then there should be very little scoring (light/fine amounts) evident in the cylinder.

 

[Axl Myk]

That is from the machine honing operation of the cylinder. It'll wear down as you run it.