[johnnyrod]

Black soot measn runnign rich, though this could be astuck shoke plunger on the carb as it's only one cylinder. TPS and TRE make no diffrent o power, neither does removing hte snorkel. As for the K&N and can, these will make almost no difference unless you PC it to fix the fuelling. If anything it should be running a bit lean but otherwise same as stock.