Jwormy
Well-known Member
Hi All,
Finally got this old CM400 off of my back patio and out onto the street so I can troubleshoot the engine noise with my neighbor wanting to kill me! I did managed to reduce the engine rattling noise by adjusting the cam chain tension screw and a balancer adjustment but I've discovered a few things maybe you guys can help me with. The first, and most concerning issue is that the right spark plug is completely oil-fouled after only idling for a few minutes and the right side is HOT and smoky, I imagine from burning oil. The left side? Cool as a cucumber. The plug on the left side looked like it hadn't even sparked so I tested for spark and it was very weak, but was indeed firing. I did do a compression test before the bike was running and it was low on the left side, normal on the right although the engine was cold at the time. The next thing I discovered is that the center stand is touching the chain. It doesn't seem warped when the bike is up on it, so I'm not sure if its the spring or what. Can it just be removed? Any help appreciated. I wasn't sure which section to post this in so feel free to re-categorize!
Thanks!, Jess
Finally got this old CM400 off of my back patio and out onto the street so I can troubleshoot the engine noise with my neighbor wanting to kill me! I did managed to reduce the engine rattling noise by adjusting the cam chain tension screw and a balancer adjustment but I've discovered a few things maybe you guys can help me with. The first, and most concerning issue is that the right spark plug is completely oil-fouled after only idling for a few minutes and the right side is HOT and smoky, I imagine from burning oil. The left side? Cool as a cucumber. The plug on the left side looked like it hadn't even sparked so I tested for spark and it was very weak, but was indeed firing. I did do a compression test before the bike was running and it was low on the left side, normal on the right although the engine was cold at the time. The next thing I discovered is that the center stand is touching the chain. It doesn't seem warped when the bike is up on it, so I'm not sure if its the spring or what. Can it just be removed? Any help appreciated. I wasn't sure which section to post this in so feel free to re-categorize!
Thanks!, Jess