I just got a new 06 YZ450f which I have not even ridden yet. I had the subframe off to grease up the rear suspension and decided to go ahead and install an aftermarket fuel screw. I screwed the stock one in to see where I was at and it was 3 1/4 turns out. This seems like a lot. I went ahead and put the new screw in at the same 3 1/4 turns out. I am anticipating having to go up to a #45 pilot jet, but don't want to change anything until I at least ride it and break it in. The manual says that each fuel screw is set at the factory. Questions:
1) has anyone seen there fuel screw that far out from the factory?
2) what is the max number of turns out you should go before just installing a bigger pilot?
Also, any recommendations on getting the subframe back on. It took me two hours to get the thing back on, the carb boot was the problem, I just could not get it to line up right.
Thanks a lot for any advice.