jetting help

[jelrod05]

i have a 03 400ex strage 1 hot cam sparks timing key, ehs racing lid and a 14-39 sprockets, carburater spacer kandn air filter amd an outerwears.. I need to know where to start for jetting

[honda400ex2003]

i would start with about a 148 and see how it goes. Maybe even a 150 with the ehs lid. what are you at now with the t-4? I was at a 138 with the lid on when I had my t-4 and k and n only. The stage 1 and the key dont change your jetting much but the filter and cover will. I would keep the f/a at about 3turns out and the needle at 3rd position down. then do a plug chop. steve