FIRE! Flaming awesome or burning out?

Glad to see I'm not alone, will do a video tomorrow

I also feel I should correct myself, it's not a Beowulf can, it's a Remus!

[mikerj]

Originally Posted by barwel1992

how so ? if the mixture is week then there would be a lack of fuel meaning no ignition of fuel (flames) if its rich the excess fuel passes in to the exhaust gets ignited by the heat and air in the exhaust ?

Because weak mixtures burn slowly, so it can still be burning well after the exhaust stroke has finished. This is how you get an backfire through the carb/throttle body, because the mixture can still be burning when the inlet valve starts opening.

Mine does this too after fitting the pointy cams

[mikerj]

Originally Posted by Goldy

sorry to sound dim, but whats a pair system?

PAIR is a Suzuki acronym for "Pulsed AIR" Injection. It bleeds air into the exhaust near the ports to enable more complete combustion of exhaust gasses to meet emissions regulations.