My 70cc experience

[jtl]

Brent,
I took my head and cylinder off and I was surprised at the amount of dark crud on the cylinder and on the top of the head. It appears pretty burnt. I wonder if this is normal? I only have 700 miles on this motor. I have pics but I don't know how to post them. Any thoughts?
John

[90GTVert]

We're burning oil inside the cylinder so it's pretty normal for a 2 stroke to have plenty of buildup. 700 miles may not sound like a ton, but there's a lot of oil burnt in that amount of time.

Pics are always welcome. Here's something explaining image posting....
CLICK HERE

[jtl]

You are right. I talked to someone else who saw the pic and they said it was 'blow by" maybe caused by not breaking in the cylinder correctly, but no big deal.