Join Date: May 2004
Location: Toronto, Canada
Not quite. The KLEEN system is their name for it ... everyone else calls it an "air injection" system.
Whenever there is an exhaust stroke, there is a strong pressure wave sent down the exhaust pipe that gets the column of air in the exhaust pipe moving, followed by a strong negative pressure wave when the exhaust stroke stops, and this happens in each of the four header pipes on every exhaust stroke. Within the cylinder head, there is a reed valve for each cylinder that only lets air IN during that negative pressure pulse. The extra air helps the catalyst burn off the nasty carbon monoxide and hydrocarbons. This system allows the engine to run slightly rich (for more power) without as much nasty stuff coming out the tailpipe.
I don't get why people disconnect this system. It doesn't cost any horsepower, it doesn't affect the way the engine runs, and it helps keep the air you breathe cleaner ...
Helibars, MRA screen, Ohlins damper, reversed shift pattern, sorted suspension, braided lines, Michelin Pilot Power, all else stock 'coz it's fast enough!