Hi Everyone,
I have a 1974 CB360 that I'm having problems getting started up. The bike previously ran fine, but about 6 months ago I decided to install a pamco ignition and pull the points. During the process of installing the pamco, I broke the camshaft pin and had to replace the camshaft. With school and work getting in the way, the bike sat for about 6 months until I was able to get the new camshaft in this week.
I installed the cam and the cam chain per instructions I read in the manual / online (lines on the cam sprocket level with the cylinder head, cam chain tight on the front before installing the back cam chain tensioner in the back). Now when I go to start the bike, I can hear the starter motor engage but after a second or two of running the starter motor, there is a loud banging / grinding noise from the engine. It doesn't sound like a backfire, it sounds like metal-on-metal which makes me worried.
I verified compression before I pulled the original camshaft and I've verified spark on both cylinders since getting the pamco installed. I'm thinking I should pull the top end cover again and just make sure nothing is wrong with the chain / sprocket / cam but I'm not really sure what to look for. I've posted a video of the sound on start up.
Someone on hondatwins mentioned that it could be the starter clutch that has gone bad, but I've been reading that a failed starter clutch should cause the starter to run without catching. Can a failed starter clutch cause the noise I'm hearing? Is there a way to check my starter clutch before I invest $50 on new parts and a rotor removal tool? Is there anything else I can check before replacing the starter clutch? Thanks for your help.
https://youtu.be/eVpaNaazcqs
I have a 1974 CB360 that I'm having problems getting started up. The bike previously ran fine, but about 6 months ago I decided to install a pamco ignition and pull the points. During the process of installing the pamco, I broke the camshaft pin and had to replace the camshaft. With school and work getting in the way, the bike sat for about 6 months until I was able to get the new camshaft in this week.
I installed the cam and the cam chain per instructions I read in the manual / online (lines on the cam sprocket level with the cylinder head, cam chain tight on the front before installing the back cam chain tensioner in the back). Now when I go to start the bike, I can hear the starter motor engage but after a second or two of running the starter motor, there is a loud banging / grinding noise from the engine. It doesn't sound like a backfire, it sounds like metal-on-metal which makes me worried.
I verified compression before I pulled the original camshaft and I've verified spark on both cylinders since getting the pamco installed. I'm thinking I should pull the top end cover again and just make sure nothing is wrong with the chain / sprocket / cam but I'm not really sure what to look for. I've posted a video of the sound on start up.
Someone on hondatwins mentioned that it could be the starter clutch that has gone bad, but I've been reading that a failed starter clutch should cause the starter to run without catching. Can a failed starter clutch cause the noise I'm hearing? Is there a way to check my starter clutch before I invest $50 on new parts and a rotor removal tool? Is there anything else I can check before replacing the starter clutch? Thanks for your help.
https://youtu.be/eVpaNaazcqs