Gonna try a 38mm PWK airstryker carb on my 87 250 with V2's and Aaen pipe...Have found some starting jetting specs but no ideas on the needle...I know the DGH is a decent one of the 500,s but no idea on the 250,s...Anyone running or has run a Keihin 38mm PWK on a 250?....Runs ok but has a needle with markings and just a blue dot on top which I assume is a JD jetting kit.