06 ec250 knock (off idle)
 

hi cool website this is my first post, my bike has a slight knock straight off idle, i ride close to sea level in temps from 10c-35c its NOT the chain slider because it can do it in nutrel with bike stopped.

my jetting is

42pilot (40 std)
std needle (dont no number)
#7 slide
178 main (180 std)
air screw about 2 turns

should i go richer again on the pilot of try lifting the needle?:confused:

thanks in advance

The power valve may be rattling.

yea i wondered if it is that because ive had some powervalve troubles. how do you make sure there is NO slop in the power valve??

im still chasing this problem any ideas??

Check your waterpump impeller shaft. I had a similar noise and that is what it turned out to be. You might have to remove the clutch side side cover to inspect it properly.