[QUOTE=YAMAHA_Jim] Aren't the 06 YFZ motors the same as 04 and 05?? Why didnt the first YFZ's have this problem? [QUOTE]
I don't know all the specifics but they did change the 06 YFZ motor. I do know that it gained 9cc's and lost .5 on the compression ratio. I'm sure there are more changes as well.
Timsr. I was not aware of a bumpy introduction for the 450R. Or do you mean they couldn't get it out in time? I put a down payment in around October of 03 and was told I'd have the first one that this dealer got in early December, well that turned into late January of 04. I did hear rumors there were trans issues and that was the cause of the delay, just rumors as far as I know.
I do also know that when I bought my new 2003 400EX. The 400EX outsold all other sport quad's combined by a 2 to 1 margine.
08 Outlaw 525s
07 CRF70
04 Harley FLHRCI
04 TRX90
03 XR650R
03 400EX- XR650R engine
02 XR100R
01 Banshee
00 XR50R
00 XR70R
99 PW50
99 JR50
96,95 Sportsman 400
95 Xplorer 400
94 Indy XLT
87 Trail Boss
86,86,86,86,86 Scrambler
86 TRX70 x2
85 ATC350X
85,84 ATC250R
85 Red Tecate
85 LT50 x2
84 XR500R
84,84,84,84,83,82,80,79 ATC70
82,79 XL500R
83 ALT50
79,78,77,77,76 XT/TT500
76,75,74 XL70
72,71,71,71 SL70
72 Harley FX
72,71,70,70,70,70,70 CT70H
72 SL100
70,69 Z50