Hi all, first post here so if this is a repost please move to the right place.
I have a 1980 Honda CM400, was running beautifully, then I parked it for ~6days and when I started it again it refuses to idle. It is also has trouble turning over (electric start) it struggles, then turns over easy for a few strokes, struggles turns easy, and eventually starts. At full choke it idles for a little bit, and it will run if I give it enough throttle to keep it at 3000RPM. Both pipes get hot, but the left definitely heats up a lot slower then the right. If I rev it up to 5-7k RPM I get what sounds like a little backfire.
My first thought was plugged idle jet, so I took both jets out of both carbs, cleaned them (could see clearly through each), also replaced the inline fuel filter (hadn't been done in awhile so figured I should). Choke appears to be functioning fine, value timing is good, battery is good. Fairly new to working on a bike so really just not sure what steps to take next, any help/advice is greatly appreciated!!
Cheers,
Rob.
I have a 1980 Honda CM400, was running beautifully, then I parked it for ~6days and when I started it again it refuses to idle. It is also has trouble turning over (electric start) it struggles, then turns over easy for a few strokes, struggles turns easy, and eventually starts. At full choke it idles for a little bit, and it will run if I give it enough throttle to keep it at 3000RPM. Both pipes get hot, but the left definitely heats up a lot slower then the right. If I rev it up to 5-7k RPM I get what sounds like a little backfire.
My first thought was plugged idle jet, so I took both jets out of both carbs, cleaned them (could see clearly through each), also replaced the inline fuel filter (hadn't been done in awhile so figured I should). Choke appears to be functioning fine, value timing is good, battery is good. Fairly new to working on a bike so really just not sure what steps to take next, any help/advice is greatly appreciated!!
Cheers,
Rob.