For other 180lb riders out there, I just put heavier springs on my YZ250F. I went with RaceTech .46kg fork springs and a 5.0kg shock. I dropped the fork oil level to 140mm from 115mm. Manual states 140mm was stock, but for some reason, mine measured 115. I went 14/11 comp/reb on the forks, 7/10 on the shock with 100mm race sag. What a difference! Jumping landings are a MUCH more pleasurable experience and I find it much easier to clear short-take-off doubles/whoops. Now the bike bottoms firmly only once or twice in a lap and I feel much more in control overall. I would recommend this change for anyone in the 180-200lb range, particularly if you are bottoming hard in whoops or jump landings.
Mark
'01 YZ250F
'00 DRZ400