Ok, had a chance to take it out and ride it after doing the "normal" mods.
I still stand by my first thinking, with just changing the throttle stop, I think the bike runs fine and feel like I could race it in the A enduro class and the power wouldn't be a factor in how I placed.
But ... one person made a great point that having a bike too lean makes it run hotter and not last as long.
So I did the normal stuff:
- bought the Yamaha AIS removal kit
- left the AIS on (in CA)
- changed all the jets in the kit
- added a remote fuel/air screw
- pulled out the airbox snorkle
- pulled out the pea shooter thing in the pipe (the smallest insert)
- disconnected the gray wire
- put in the shorter throttle stop screw
And the results? Runs great, not a monster, and actually, I don't notice a huge difference.
Certainly the throttle stop change is a huge difference, but the power characteristics seems the same. Maybe a bit quicker reving, more "lively", but nothing that drastic.
But now I gotta focus on the suspension ... that needs a bunch of work.
I just bought the 09' wr450f. Completely stock. Can I get away with just doing throttle stop screw, pea shooter, and gray wire mod?
In your opinion...
I live in Pittsburgh, PA.