I put a new top end in my 4 mil shee. I went to start it up and was unable to. I then bump started it and after that It started up first or second kick without a problem. I was letting it warm up and saw that the right side seemed to be missing. If I gave it some gas the left cyclinder would start firing. After letting it run for close to a minute I noticed water was coming out of the over flow tube off the radiator. Now I filled up the radiator to the very top, so should there be some leaking out due to the water expanding or do I have a o ring issue? Also it has a cool head.
I didn't have time to trouble shoot but what should I look at next before I pulled apart the top end.. I was thinking checking plugs and spark, swapping spark plugs/wires, compession test, anything else before dive into the top end?