Re: popping sound coming from tank? (duc44)
The popping is most likely coming from your airbox not the tank. On an 01 SS, I don't know what the guy did to adjust your ECU. As far as I know, you would have to re-flash the firmware to get any changes in mapping or add something like a power Commander. Maybe you can "trim" it a little with a Mathis (sp) tester. Not sure. You could have more than one problem... Maybe the bike is running lean, but that fact is not necessarily connected to the misfire problem. If the bike runs fine until it comes up tp full temp, I wouldn't think the sudden misfire is directly connected to the lean condition. It could be something else entirely and you're being led away from that problem by the existing lean condition thinking that it's the cause of all your troubles. Probably should troubleshoot one thing at a time. For the misfiring at temp (assuming it does run good until it's hot), I would think about the ignition coils and even plug wires. There is also that trigger on the flywheel side, but I am not sure if that would display a heat related problem. Electronic components can be effected by heat, especially big transformers like ignition coils. At high temps, the insulation can break down enough to develop an internal short. When cooled off, the condition can lessen, or even disappear. For the lean condition, I don't think you've mentioned if your bike is modded at all. If it's all stock and running lean enough to cause a problem, maybe your throttle position sensor if miss-adjusted, or even bad. Anyway, just some thoughts. It's pretty hard to "diagnose" something over the Internet!!!! Maybe you should take it to someone else for a second opinion!