I ran a compression test on my ze yesterday out of curiosity and I came up with
170psi on cylinder 1
160psi on cylinder 2
170psi on cylinder 3
170psi on cylinder 4
I'm assuming since they are so similar it's all good but I thought I should check anyways
Also, when I took my sparkies out I notced what seemed to be a rust like build up around the tip area of the spark plug, I'm just wondering what may cause this, I didn't notice it last time I changed sparkies..