Picking out the pebbles
Bike specific pages » 2006 Kawasaki ZX14 » Kleen Air System
Whilst doing the valve clearances I noticed this plumbing.
Online chatter & a local ZX10R owner suggests its emissions related and may also contribute to the 4k rpm backfire on down throttle.
brocksperformance.ca have a simple plug that blocks the tube into the airbox as opposed to some who remove the whole kaboodle from the cylinder head cover. Seems a resistor may be needed here to fool the ECU..
So I blocked off the Air box hole and the tube from the air switch per the brock performance instructions and it still back fires..