I think I need a little help diagnosing a problem on my roommate's Buell Blast. It's a carbureted single-cylinder, and it's having trouble with cold starts.
We just installed a new auto enrichener this afternoon and the problem still persists. This is supposed automatically bypass the throttle butterfly so that the bike idles a little faster while it warms up. There is no choke of any kind on the bike.
Symptoms: If you can get it to start (which involves cranking the starter with the throttle cracked open ever-so-slightly), the engine pops, skips, and misses like crazy until it gets warm. You have to hold the throttle open a hair to even keep it going. Once it's warm, however, it's like a brand new bike. It idles peacefully, it quiets down, and the throttle response is what you'd expect from the bike.
When my brother gets it started, he immediately revs the E36 M3 out of it to keep it running (I prefer the finesse of just keeping it running). This CAN'T be good for the thing because the cylinder isn't lubricated. Did doing this damage the rings? Could this explain why it only works well when it's warm?
Whadda you guys think? We really want to get it working right because she wants to sell it to buy some sort of European thingy (Triumph Triple
). It only has 4,000 miles on it!


That still pisses me off a bit. Cool little bikes.