Back Tire Skidding

[Khalil]

Hi my bike was working absolutely fine, then on a regular day while I was using it on the road on my way to Walmart, I t started to fail, but it did not stopped. However on the way back it did not started, I felt that when i was releasing the clutch to get it started, it was braking or skidding, like if i pressed the brakes or something. Do you all have any ideas please?
Thank you,
Khalil

 

[Deleted member 12676]

does it have the standard cylinder head or an aftermarket one? if the latter then it is probably just due to the excessive engine compression they cause.

 

[Khalil]

I believe it is a standard one, because I never changed any of the pieces after assembling what came in the engine kit into my bike.
So you think if I replace that I should be good?

 

[Deleted member 12676]

no, there's some grave problem then.
take the clutch cover and the cylinder head off to inspect and see if all looks normal.
first take the spark plug out and tell me if the engine offers much resistance when you push the bike with the clutch lever out