fj-1200 Posted May 30, 2007 Share Posted May 30, 2007 Can anyone tell explain what would make my air intake blow air instead of suck it and possibly how to correct the problem any help would be appreciated Josh Link to comment Share on other sites More sharing options...
Paul Mc Posted May 30, 2007 Share Posted May 30, 2007 Can anyone tell explain what would make my air intake blow air instead of suck it and possibly how to correct the problem any help would be appreciated Josh Timing? The piston upstroke that should force spent exhaust air out the exhaust valve may be getting sent back through the carb instead, into the airbox? Really could do with (a lot) more information - any other issues (is the bike running okay?!!!) etc, how long, since when, what was done since to try to fix etc.... Have you checked the valve timing and valve clearances - if inlet valve not closing completely, could have exhaust air pushed through on the exhaust stroke.....? Pressure in the airbox - from the engine itself (should have a vent into airbox from bottom end, may be pressurised (shouldn't be)....).... More info please? Is bike a California model, with extra bits for the scavenging of unspent fuel - if so, this may be normal....? Paul Link to comment Share on other sites More sharing options...
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