Does using premium gasoline always result in better engine performance?

Jun 10, 2012 ... The bike keeps fouling the spark plugs (NGK B6HS). After 2 days of riding (+/-100 miles) they both become carbon fouled, the bike started farting and ... Apr 27, 2008 ... If this is indeed my problem (weak ignition) . does anyone have any recommendations for fix/replace? Jan 26, 2009 ... * Carbon fouling: Your spark plug will have a black look, and will ... The cause of this type of foul could be caused by a number of ... Feb 28, 2014 ... Years ago I thought a plug fouled was because of the carbon and lead build up. ... cause of sparkplug fouling is oil getting into combustion ... Sep 4, 2011 ... I say this as the plugs on the wife's R80 also look a little carbon fouled. ... plug causing the fouling. A leak down test would help ... Oct 12, 2021 ... If the black soot is 'dry', it's a fuel-rich condition in the absence of (significant amounts of) oil entering into the cylinder. Jul 14, 2021 ... Common types of fouling include lead, carbon, silica, loose debris, and oil. Another common cause of spark plug failure is a cracked ceramic ... May 26, 2009 ... half a turn rather then the standard 1+) which cause carbon fouling eventhough she still need gas... ... spark plugs. This is ... Oct 24, 2015 ... Pulling the plugs, all four plugs are identically and evenly coated with a dry dusty heavy black carbon that cleans easily with a wire brush. I ... ... carbon fouled, but the other plugs were normal (according to my plug chart). What could be causing plug #1 to carbon foul? -- bad plug? incorrectly set ...