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Cause of 4 stroking?
Posted: Sat Apr 09, 2011 6:44 pm
by djh66
My 185cc with 24mm PWK, breathing direct, seems to be 4 stroking between 1/4 and 1/2 throttle, I'm running a 34 pilot and a JJH needle on 2nd clip from top, any ideas?
Cheers Dave
Re: Cause of 4 stroking?
Posted: Sat Apr 09, 2011 6:50 pm
by coaster
djh66 wrote:My 185cc with 24mm PWK, breathing direct, seems to be 4 stroking between 1/4 and 1/2 throttle, I'm running a 34 pilot and a JJH needle on 2nd clip from top, any ideas?
Cheers Dave
JJH is a bit rich, assuming you have tried lowering the needle (raising the clip) you could try a GJH, that's a bit leaner in the mid range.
Re: Cause of 4 stroking?
Posted: Sat Apr 09, 2011 6:54 pm
by djh66
I'll try it tommorrow, with the needle clip on top, if that improves it, i'll look to purchase a GJH.
Thanks
Re: Cause of 4 stroking?
Posted: Sun Apr 10, 2011 8:03 pm
by djh66
Has certainly stopped the '4 stroking', only thing now, is the revs take a while to drop when easing off the throttle?
Are ther any UK suppliers of PWK/Kehein needles?
Dave
Re: Cause of 4 stroking?
Posted: Sun Apr 10, 2011 8:26 pm
by joeswoonara
Re: Cause of 4 stroking?
Posted: Sun Apr 10, 2011 8:27 pm
by C*NTSPEED
Yeah allens
Re: Cause of 4 stroking?
Posted: Sun Apr 10, 2011 9:17 pm
by djh66
Cheers chaps, advice appreciated as always
Dave