I came off a 2006 YZ450 which I spent a lot of time getting to turn great, absorb small bumps incredibly, but not bottom on big hits, and gearing settings. I raced MX for years, then raced Pro/Expert Supermoto, but having a family put that all on the back burner, hence no new bike for a while...well, years.
I bought a 2011 YZ450 leftover, and got an FMF
4.1 RCT complete exhaust
, tuner, skid plate
, and extra filters for pretty close to a 2012 price with no extras. (Good choice for me because I will revalve the suspension anyway to suit me, and the changes to the 2012 didn't seem worth the extra money, along with still having to purchase the aftermarket parts to improve the bikes downfalls)
The first time I rode the 2011, I felt the dreaded 'Vagueness', 'Chatter', or whatever you want to call it, going into corners. It freaked me out so bad, I almost wanted to jump off thinking I was going to crash anyway, BUT, once the bike leaned into the turn, POOF, it was gone. I stole the rear link off my '06 because it was the 1.5mm longer, like all the tests suggested. BIG difference!! I then changed the exhaust, mapping, sag
, fork height, and installed the 2.5mm offset rear engine collars, with ALL different combinations to test. In the end liked the following set-up the best ( like everything on a bike, these are personnal preferances ):
4.1 RCT full system
- the Jay Marmont mapping
- 50 tooth rear sprocket
- DT-1 'Over the Cage' filter
- 2.5mm offset rear engine collars
- Stock fork height
- 105mm sag
403 front tire( was an immediate improvement over the stock Dunlop
IT 110/90 19 rear (was a present for Xmas but works great and lasts forever)
I also revalved the forks slightly to absorb small bumps better, but will be digging back into them, as well as the shock, to suit me even more. I DID however notice a slight difficulty shifting into neutral. On my '06, we would modify the shift drum to make it easier to get into neutral when you wanted, but harder to have a false neutral when changing gears. I will be doing it to this bike as well. I also went to a 50 tooth rear sprocket to accomadate for my style of riding as well as pretty much eliminating the 'Fall off your face' feel of the power when shifting from 2nd to 3rd gear when the set-up is ALL stock. I also installed 'Scorpian Racing' Radiator supports because they are thick as hell, and utilize a cage style system as well as the rear support-to-frame brace like the Works Connection
'stamped' braces. These 'Scorpian' supports have taken some hard hits already and haven't budged!
Happy with the changes and happy I bought the bike. I rode a 2011 CRF450, a 2011 RMZ450, 2012 RMZ450 and with every bike needing a handful of modifications to suit "THE RIDER", but I stuck with the Yamaha
Hope this helps! Have fun with whatever choice you make
Edited by dcrider942, March 06, 2012 - 09:40 AM.