Low speed miss

[Troll]

Vacuum leak? The hoses and stuff are now quite old, and nothing lasts for ever....If Having a little enrichment fixes it, then look for a cracked hose.

[gdrudd13]

Since it runs fine with the choke pulled out, it sounds more like a fuel issue, more specifically a venting issue. You might try opening the gas cap, see if that helps. I could be wrong, but it sounds pretty close to a couple of the issues that I ran into when I was figuring out the tank vents on my bike (getting rid of the charcoal cannister and stuff). And it's really easy to check.

[cochise]

Rode home the other night and while leaving my bike idling while I opened the garage door I could hear it missing on one cylinder and stalled in a moment. Fired back up, but the next day while riding, high speed seemed OK but as I throttled down ,it  started missing. Pulled the plugs and they looked ok , gap good. Cleaned them , back together and same result. I thought a coil issue but if I pull the choke out it will smooth out and run better. Before I start tearing everything apart guessing at it I thought I'd look for advice.