Ok, after debating between a WR250F and the WR426F I decided to get the 426 so I dont have to rev the motor so high to make power. I have left the old DR 350 and moved up to the new age of riding and hope to get my bike this Wed., make my mods on Sat. just in time to ride Sun. The baffle and the air box are no brainers but, do I need to remove the spark arrester as well? On trimming down the throttle stop...1st: How hard is it to get too? 2nd: I think it is to be trimmed to 23mm including the allen head, correct??? 3rd: How long does it take to do this? I plan on greasing my WR on Sat. as well, where are all the areas that need to be greased? Lastly is there anything else I need to do before I start riding? I REALLY want to get it done before it gets all muddy from the rain we've been getting here in Louisville, Ky Most importantly, Thanks for all your help in selecting my new bike. This forum was a big help in the fact that I got real rider info. Everyone was honest and up front unlike some of the other forums I checked. The alway talked about how there bike could do it all, whether is was trail twists, hill climbing, or flat speed. Here everyone told me there opinion but it all matched. I think I will be really happy with my new WR and plan on using, and hope to give, the info here. Thanks, 696 WR426F...BONE STOCK BABY !!!