JordyRoo Posted July 5, 2016 Report Share Posted July 5, 2016 So im jetting my PWKs this is my plug chop Im running FMF gnarlys, 4mm crank, 66mm bore, mild port job, vforce 4s & twinair powerflow kit with no airbox lid. Current jetting is JJH needles, 2nd clip from the bottom, 190 main & 48 pilot. Still seems a little lean. Runs mint no bogs or flat spots, just gets warm. Leak down held 6psi for 30mins & didnt move. Any ideas, should i go bigger main? 195 or 200? 1 Quote Link to comment Share on other sites More sharing options...
camp0429 Posted July 5, 2016 Report Share Posted July 5, 2016 190? Somethings fucky Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted July 5, 2016 Report Share Posted July 5, 2016 That was a 1-6 run, nothing else? Quote Link to comment Share on other sites More sharing options...
JordyRoo Posted July 5, 2016 Author Report Share Posted July 5, 2016 1-6 run then back to the van should of swapped out after the pull i know. & i keep thinking 190 is huge for that carb.... Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 5, 2016 Report Share Posted July 5, 2016 190 is way massive. Quote Link to comment Share on other sites More sharing options...
guns4children Posted July 6, 2016 Report Share Posted July 6, 2016 I dunno if it makes any difference but I'm running a tad rich with 160 mains on my 421 -serval with procircuts. I do have 35 pwks though. just for reference cause it seems you're waaaayyyy rich. Quote Link to comment Share on other sites More sharing options...
JordyRoo Posted July 6, 2016 Author Report Share Posted July 6, 2016 So what do you think is the problem? Leak down passed, pick up gap is right, motors been rebuilt with new crank, pistons etc, reeds are also new with no gaps. Could it be fuel starvation? I have ordered a dual pingel valve... Quote Link to comment Share on other sites More sharing options...
camp0429 Posted July 6, 2016 Report Share Posted July 6, 2016 Are they geniune Keihin jets? Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted July 6, 2016 Report Share Posted July 6, 2016 I'll bet if you did plug chop correct it would look even leaner. Quote Link to comment Share on other sites More sharing options...
JordyRoo Posted July 6, 2016 Author Report Share Posted July 6, 2016 Genuine jets, think ive found the issue. Ive swapped the boost bottle for the cross over tube & now the plugs are wet. So ill put some 170s in & do a plug chop ill post results in 5mins. Quote Link to comment Share on other sites More sharing options...
JordyRoo Posted July 6, 2016 Author Report Share Posted July 6, 2016 warmed on old plugs, new plugs in. 1-6 WOT & kill at WOT. roll to stop & pulled plugs. no bogs or flat spots. Quote Link to comment Share on other sites More sharing options...
JordyRoo Posted July 6, 2016 Author Report Share Posted July 6, 2016 Any ideas guys? Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 6, 2016 Report Share Posted July 6, 2016 148-152 ish. Quote Link to comment Share on other sites More sharing options...
JordyRoo Posted July 6, 2016 Author Report Share Posted July 6, 2016 So thats too rich? ^ its seriously running hot. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 6, 2016 Report Share Posted July 6, 2016 Got some issues to figure out then. 1 Quote Link to comment Share on other sites More sharing options...
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