Not to rain on the parade, but after my experiences last week with my 2007 Rage, my opinion of Yamaha has changed a bit. Basically after just 4200 easy miles, I am looking at a $500-800 repair to have the driveshaft bearings replaced. I had heard the bearings were a weak link in the DB1 and DB2 Yamaha chassis and was hoping to get 5000 miles. Not so. Was riding Trail 45 NE of Newberry noticed a medium to high pitched noise that increased with speed. Spied a bit of oil leaking from the lower chaincase seal. Nursed it back to the trailer, about 40 miles back and by the time I reached the trailer it was noticeable at any speed (kept it under 40-50 coming back, was afraid it might lock up).
Gave the dealer a quick call and they said driveshaft bearings, 5+ hours labor to pull chaincase, suspension, secondary, driveshaft, replace bearings. So $400+ in labor and $100+ in parts.
After returning home and reseaching the issue on totallyamaha, I also read that these sleds are having a high proportion of driveshaft failures (more so the RX1 but also the Vector/Rage). So we'll replace that when we're in there, too for another $100+.
The revised 2010 chassis has a bigger diameter, redesigned driveshaft along with a DOUBLE bearing on the chaincase side, so it would appear to be a weak link on the pre-2010 Yamaha 4-strokes.
If I were in the market for a new sled right now I would NOT buy another pre-2010 Yamaha. Hard to accept a sled with 4 years and 4200 miles needing a repair like this. After it's fixed I'm probably going to ride it 1-2 more years and trade it in.
FYI I do not jump/ditch-bang this sled. All groomed trail miles. Stored indoors off the ground and serviced each spring. No way to access the chaincase bearing during normal maintenance - pulled seal and greased PTO side driveshaft bearing every spring. (Noise coming from chaincase side.)
The only bright spot is I have 6-7 months to fix it so I may do it myself. Nothing super-hard about doing it, just need a few tools and a shop manual, and maybe a six-pack (or two). Oh and a hydraulic press to press the drive cogs on the new axle.....