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2021 YFZ 450r Must have mods.

12633 Views 81 Replies 17 Participants Last post by  staxpoker
Hey Y’all,

Im picking up my new 2021 YFZ 450r se next week and am wondering what are some must have mods? I got the HMF full exhaust, Vortex ecu, FCI intake and some nerf bars. Any help would be appreciated.
Thanks!
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Unfortunately no, my throttle is still sitting on the shelf waiting to get installed. Life has kinda gotten in the way of riding as of late. Plus the Midwest Spring weather has been pretty terrible on days I could’ve went out. Hoping in the next couple weeks I can get it installed and out for a ride. Will keep you posted
True, the H316 itself doesn’t come with the gear. However if you are able to find the full H316-B-0901 “kit” part number like I posted above, it comes with the gear installed and the bolts are pinned to their basket from Hinson and the thrust washer is supplied... but it did cost $599 (purchased Dec. 2020 directly from Hinson’s site). Now that is a lot of $, but it is about the same cost as the Hinson 09 Basket and the stock 09 basket with OEM gear and a lot less hassle. I do wish Yamaha would just sell the damn gear separately, but they apparently don’t consider it a “serviceable component” and instead make us buy the whole Gp.

Now, I was coming from a 2019 YFZ450R and needed the basket and gear because I chose to do the full 09 conversion all the way from the basket to the cover. That was my choice. In my opinion it’s just a better/stronger design honestly than the current Gen.

It’s still a slipper clutch tho right after changing the basket to the 09
Likely the feeling is different due to OEM slipper clutch feel vs. “non”-slipper clutch feel, assuming you went from the 14-C setup to the wholesale 09 setup. Clutch Spring tension likely plays into this as well. Although tough to nail down as this is only over text lol. Hinson’s clutch setup does have stronger springs than OEM so it will likely feel a bit “tougher” when working the clutch and will have more bite if you will because of that, in addition to better disks. Rekluse comes with a series of springs that can be mixed and matched to get the desired clutch lever feel or bite or slip depending on your viewpoint (at least the Manual Torq Drive does according to Rekluse when I last spoke with them, pretty sure the RadiusCX auto does as well but can’t confim). Rekluse manual also has more disks which effectively drives a more positive grab.

In short, if you are looking for a stock feel, getting a full race ready upgraded clutch setup likely won’t get you there. It grabs more by design, puts more power down by design. The closest you may get is adjusting which springs are leveraged which may not give you the performance it could offer but will make the feel more “friendly” and of course aftermarket clutches (Hinson/Rekluse/ many others)absolutely will improve durability over stock.
It’s still a slipper clutch tho right after changing the basket to the 09
What about the Hinson btl set up?
What about the Hinson btl set up?
I almost got that I just didn’t know anything about it
I almost got that I just didn’t know anything about it
It's a slipper clutch some people like slippers like the stock yfz has people like me like engine braking.
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It’s still a slipper clutch tho right after changing the basket to the 09
Hence the “non” in quotes. They are all technically slipper clutches to a degree. The less forced engagement the more slip, the tighter/stronger engagement less slip. Thats where it gets personal for some, some like less slip some like lots of slip some like the goldilocks zone of slip. The less slip the more positive the engagement which then falls into the be careful where and how often you high rev and drop the clutch to ensure you are protecting the transmission gears.
Hence the “non” in quotes. They are all technically slipper clutches to a degree
You are right sir. It if you want engine braking or not really
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You are right sir. It if you want engine braking or not really
Me personally, I prefer my goldilocks slip zone and engine braking. The 09 full Hinson setup is pretty much where I like it right out of the box
What length heat shield did you get? I was thinking 5" but I'm worried it wont clear the anti-reversion "bubble" on my Rossier R4. Anybody have the heat shield on the Rossier anti-reversion head pipe? If not I guess I'll be the guinea pig and find out.
What length heat shield did you get? I was thinking 5" but I'm worried it wont clear the anti-reversion "bubble" on my Rossier R4. Anybody have the heat shield on the Rossier anti-reversion head pipe? If not I guess I'll be the guinea pig and find out.
I got the 7 for the same reason. Figured the 5 would be to small.
Yeah that's the 09 to 13 setup with cushions. The 14 and on have springs. You can see the 3 rivets you have to grind to get the gear off then you bolt it to the hinson. View attachment 94281 View attachment 94282
Can you use titanium bolts or rivets to the 09 basket/gear to make it even stronger?
What vortex is that? I can't find one for the 2021 model year
What vortex is that? I can't find one for the 2021 model year
you need a vortex that’s made for 14 and newer
you need a vortex that’s made for 14 and newer
I just called vortex and they emailed me a invoice for the one I needed.
Check out https://wienenmotorsports.com/products/vortex-ecu
they have upgraded maps you can have them program for a couple hundred bux.
Idk man I would prolly just get the one with Duncan maps
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I'm taking it all apart as we speak. Not even going to put 5 min on it until it's fully modded :D
Dude, I finally got mine setup and got a couple hours on it yesterday. To be honest, I have no clue what the stock clutch felt like, I did the 09 basket swap right away and it felt great on yesterday's ride. I literally only rode the quad for about 45 seconds before installing the Big 3 and I will say the bog is completely gone even without checking my TPS settings from the factory.
However, I'm replying to this post is for one reason only....the Precision Stabilizer. I was on very dry, very "chunky", very rough terrain (with deep truck ruts & boulders the size of volleyballs) yesterday and when I started to ride I didn't think it would last very long because I'm old and my grip was fading fast. After about 30 minutes I wanted to let the quad cool down as part of the break in so while I let it cool, I figured what the hell, lets try making some adjustments to the precision while I wait. I can definitively tell you after making that adjustment from XC to Rough XC on the Precision that it's by far the BEST thing I've put on this quad to date. After making the adjustment I could ride for much longer and much faster!! The cherry on top...I'm not sore at all today.
Keep in mind, I don't have upgraded suspension yet (next year) so I can't speak to the value of that upgrade but as of today, even at $600 I would say the Precision Stabilizer is worth every penny, I would probably pay $1,000 for it.
Lastly, I would like to say this because I just took my first ride yesterday...these YFZ's are GNARLY!!! I have every intention to get this thing dyno tuned within a month or so but even without it, just having the Big 3 installed, THESE THINGS RIP!!! I could not be happier that I purchased this quad and all of the parts that came highly recommended on this forum.✌
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Sounds good. I bought a used precision elite from Silsby and love it
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Nice man! I ordered my stabilizer a few days ago. Will be here soon. Just waiting on that and the ecu mount and everything will be ready for install.
I might of left some parts out but here it is:

Went with DASA exhaust
Just because 38 Motorsport is awesome and had a killer deal for about $485.
New quad mods
Dasa exhaust -
Radiator hoses - white -
Vortex ecu -
faast flexx handlebars -
tusk hour meter, -
38 Motorsport AIS delete removal kit, -
throttle position sensor check harness -
quad tech seat cover, -
38 Motorsport oil catch can -
Peak racing screen saver -
Clutch switch delete plug -
Four werx carbon heat guards front and back -
Four werx frame guards -
38 Motorsport speed sensor block off
Pro armor kill switch -
BNR softer throttle body spring -
Houser +1 steering stem and mount
Remove spring on clutch
JLS large clear oil case
Hinson clutch basket
ASV clutch lever and break levers
09 clutch gear -
Glann innovations - digger sprocket guard, chain guide and case saver ,skid plate
BNR frame plug
Rekluse radius cx clutch
Oversized coolant fan
Temperature gauge
Nerf bars - houser
Bored throttle body BNR
FCI intake w/ box and plug for cleaning
HMF front bumper
Precision elite steering stabilizer
Vortex ecu harness - peakracingproducts.com
rotor guard
Tusk oil plugs
Blud oil - 24% off Discount code ononewheel7
Engine ice coolant
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