Kasea 70 help

[03bill]

I have been working on these for a long time but I recently been having trouble with the arsinal 70 kit I put on one of my bikes. I blew a head gasket and changed it out. It ran good for about 2 rides and now it will not idle and is very hard to start. I do not have a spare head but I am thinking the head is warped. Has anyone else had this problem?

[jandjracing]

Sounds like crank seals or engine case half seal. Spray some carb cleaner at these areas when it is running and see if it changes anything.

[03bill]

I pulled the motor from the bike and checked the head and piston. The ring was seized and caused a burn mark across the cylinder. I ordered a new one and I will install it and see if this fixes the problem.