Hi guys. This one has me a little stumped. I have an Intek 6.5hp horizontal engine. When I got it, it would pop but not start. It sounded like timing to me so I pulled the engine open and checked the timing marks. The cam was 180 out. I put the cam back in the correct place and it does the same thing. This engine looks like new inside and out. I pulled it apart and checked the valves and springs. Everything looks like new. I have not pulled the flywheel off yet, that will be my next thing. This thing pulls like it should, with no obstructions, like I said, it looks like new. Any suggestions? Could I have the marks off on the timing? The cam is plastic and the lobs are plastic mounted on a steel shaft. The cam gear has a little square molded into it with a mark so I am hoping that, that is the timing mark. I appreciate any suggestions that you might have. Thanks.