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PWK 28 jetting!


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So im jetting my PWKs this is my plug chop

 

20160705_130928_zpsx8ou7o20.jpg

 

 

20160705_130937_zps2geynqjm.jpg

 

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?

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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...

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