dehydratedH2O wrote on 03/28/12 at 22:06:39:I hate to thread crap, but I think I'm having the same problem with my roommate's bike. When he first bought it, it had been sitting for a while and ran, but not well, so we cleaned the carb. Shortly after that, it started running worse -- dying when slowing down for lights, backfire, sputtering, flames, etc. I accidentally killed the battery one night, and when I charged it back up I couldn't get it running for more than a few seconds again. Now I can't even get it to start (though it is certainly trying to), but it slowly leaks fuel into the airbox and onto the ground. It emptied its own full tank just sitting in the driveway for a week or two.
You need to check your petcock, should stop the flow when off. check the vac line for fuel, shouldn't be any fuel. And you need to replace the float valve.
Quote:I had my roommate order a DynoJet kit thinking it's a clogged/broken jet or maybe we messed something up when cleaning the carb. It sounds from this thread like I'm on the right track. Am I? Should I also get him to replace the carb boots and the vac line? If so, where's the best/cheapest place to get them? I'm going to make him buy a fuel filter, as well - what kind should he get/where should he buy it? (I'm guessing just a cheapo from autozone will do.)
There's one there I like, kinda big, but ends at a right angle so feeds right into the carb.
Quote:Somewhat offtopic: the bike has a Supertrapp pipe, but no actual disc-muffler thing on the end of it. I'm guessing, then, that it's just acting like a straight pipe? Is that okay for the bike?
A supertrapp with no disks will give you lots of tuning problems besides johnny law coming down on you. It'll run very lean. So unless you put in a big disk... you need to figure out some way of closing it off a little. I think I would screw a plate on the back to close it off completely and drill a pattern of 6, 1/4" holes initially. And you can make them larger to suit.