ok so i got a chance to take the bike out today and actually ride it. i went to a local track of sorts really just an area to play in and i was the only one there so i could take my time breaking it in. i put about 1 hour on the bike and went about 10 miles.
in short the bike is awesome! i ended up taking 3 clicks out of the compression and rebound of the front forks. 2 clicks out of the rear and the suspension is very good! the power of the bike is just off the hook. it feels easily 20-30 lbs lighter than my 13 wr 450 was especially in the front end.
the track did not allow me to really get on it much but i did find a road i could rip a little on. i stayed below about 3/4 throttle after i had already ridden about 45 minutes and just got through 1,2,3 and into 4th gear. the bike is scary fast!
hard to believe the old WR was a 450. i remember what it was like before i did the cam timing and what an improvement it made, this new FX is better than my modded wr was right out of the box in every category.
i knew from the beginning the front brake needed to break in a little as i was not getting much grip from it initially. so i spent some time woking the brake and i am happy to report the brakes are awesome! you can easily lock up the front tire with 1 finger!
i can tell the clutch pull is easier and more precise in the amount of slip you need. but ill be putting my reckluse in soon anyway.
i went ahead and plugged in my GYTR tuner and the only map i had handy was the modified one that was on my WR when i sold it. this was the map that the tech dyno tuned my bike on for the max HP. so rather than make a new one i just uploaded it to see if it made any difference. i could tell it had a little more top end but the fuel trims and timing advance for the most part on that map were mostly 0 to +3 so i may experiment with adding a little more timing as i get more seat time on the bike.
also i live at 6500 feet but i can tell this bike has easily the same power as the YZ i rode a few months back but i can also tell the flywheel is a little heavier than the YZ450F but not as heavy as the WR was. the MX bike had just a little more authority to each power stroke but you can tell the power is still there just smoother than the MX bike which is to be expected with the heavier flywheel and crank.
overall i can't find anything i don't like about the bike.
it has exceeded my expectations in every way. it is exactly what you might expect if you mixed a YZ with a WR. it has the light weight and agility any woods rider will appreciate, and the power of the MX bike when you need it along with the right gearing that the MX'r never had.
the fact they called it a YZ450FX seems totally appropriate because it really is a combination of both!
in the few areas i was able to open it up a little 3rd gear has always been my favorite, it has the torque to still climb anything, wheelie when i need it to and rev out on a straight section without the need to switch gears. the FX excels in this gear even more so. when we ride desert or over whoops and some rocks or hills i often ride in 3rd. now with this motor there is even more to love about the way this bike runs. it never lacks torque, HP is always a twist away and if you grab another gear it just goes faster with what seems the same gusto as the gear before it.
on the low speeds it almost feels like it might be geared just a tad taller but it could be my imagination. maybe someone can confirm my old 13 WR was 13/50 but i don't know if the previous gen 12-15 WR trans ratios are exactly the same as the new 16's or not. but either way I've always felt the ratios were perfect anyway and nothing has changed in that department as far as i can tell.
also it may be just because it is a new bike but i find the shifter shifts easier than my previous bike.
the FMF titanium slip on i put on the bike sounds awesome! not loud at all but sounds like a chainsaw nice and smooth not barky or obnoxious. i never did get the radiator fan to come on, and the hottest the bike got was 160 degrees so i have not been able to test that. but it was 45 degrees today here.
also if any of you plan to install the trail tech voyager ill have to post pictures of mine, it took me a while to get that on the bike in a way that wouldn't pinch the throttle cables. i wish yamaha made them about 1 inch longer. the way they wrap around the triple clamp on top makes for a tight stretch when turned all the way to the right. i installed my GPR steering damper on it last week and that raises the handle bars up about .75 inch making the cable's even shorter. so i ended up not using their h beam clamp on the bar and instead used the tops of the factory risers so i could use the bolts to mount the trail tech protector and voyager computer.
it all fits pretty tight because the WR had room behind the headlight and with the MX number plate things are cramped under the handle bars.
also i had to rig up the wheel sensor, modify and drill a new hole to mount it because the larger rotor makes it farther away from the magnet on the brake rotor. i called TT and they said they were aware and are working on a new unit. so they are supposed to cell me when it's ready to purchase. mine is working but i don't like the way i had to modify it. it looks ugly but is functional.
anyway, so there you have it! any of you considering this bike you will not be disappointed. i am so glad i did not buy the 2016 450 KTM XC-F i think it would have been a really nice bike but for the additional money i just don't feel like you could have improved much on this package! if anything it may feel a little bit lighter, but the way this feels i am very happy with the weight if the KTM is lighter feeling, who cares! i do know the gearing of the KTM is much taller! too tall for what i ride mostly and the suspension is so good with the blue bike i cannot imagine the 4cs forks with the complaints i've read would be worth the headache. for what i spent on this bike, even if the differences are noticeable ones compared to the KTM i still don't think i could justify the additional cost.