Eddie,
I have spent many hours reading your threads and they have been very informative and I have been trying to collect bits of info to put together my requirements as know one in Australia can help me.
I have a 200 wr450f with a YZ complete exhaust system and want to get my jetting right for sea level , if not a little higher.
I have done all the ais mods and am just about to do the oring ap mod and whilst it is all out change the jetting. It is running rich and all i know is that i have a nflr needle at the 4th clip. it back fires when i start it and bogs under quick accerleration.
I thank you in adavance for any advice.
Paul








