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That is a 2024.
What is the difference between the ‘23 and ‘24 aside from BNG? I was under the impression that no changes were made so I think we can assume that if a recurring issue presents itself on the ‘24, those of us with ‘23s should be equally concerned / aware of the potential for it to happen with our bikes, no?
How many blown up? Out of how many sold?
Correct, no changes where made but that does not mean the parts are the same. Kawasaki went through this with the cylinder heads warping on the 15's (I think that was the year)
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Said he was hearing a knocking sound after he would rev the bike up so they threw a new piston in it after only 5 hours... Why not take it back to the dealer to have them inspect it before doing anything else with it
That's fair. I selfishly hope this is the case as I plan to try and make my '23 last until the '25s are out anyhow, but I've definitely heard some rumblings about reliability with this platform. The only real reliability issues I've had personally is with the clutch, but I have always been a clutch abuser so it';s not been too much worse for me than the older bikes.
My -23 broke pin/piston before 40h and im Vet rider. After that been running without problems but done piston every 30h. Havent hear any of my friends having problems so far.
Clutch wont last in deep sand long but using KTM plates helps little. I guess Hinson plates would work better than stock also but their price here in EU is double if you compare Yamaha/KTM set.
Guys - I hear of 23-24 YZ450F clutch issues and have a great shape (3-4 rides) Rekluse RadiusCX system for these bikes if you're interested in improving your clutch situation and want autoclutch functionality. $850 shipped. PM me if interested.
This clutch only fits 2023-2024 YZ450Fs. It is not backwards compatible per my phone conversation with Rekluse.
Anyone know what the flywheel bolt torque spec is? My son had a bad crash today and the bike was upside down with the throttle stuck at about 1/3rd the way open for a few seconds. He was alert enough to get up and shut it down. Bike would not start. It was locked up, would not turn over. We took it to our shop and started turning the motor over by hand. It would spin pretty freely backwards and then catch. We tried to go forward and the nut just broke loose. Kept going back and forth until it broke free. She finally fired up and smoked like a train for a few minutes. Air box was covered in oil and oil was running down both sides of the bike but more so from the right side.
Thankfully he is okay and the bike is running, I would like to torque that flywheel nut back because i think it had to be way to loose, maybe I am wrong and it is a low spec. Didn't seem normal...
Odd smoke after a mild crash, I didn't smell like oil to me. I was hoping an expert could explain what happened? It seemed like coolant maybe? Bike started fine and ran great for 2 more moto's. 2023 YZ 450f has about 24 hours on it with no issues. Thanks. https://www.youtube.com/watch?v=6L-cj1MraZs
My sons crash was a lot worse than that but as the throttle was sticking, the time it took to cut it off was about the same, Our bike was upside down for a few seconds. Oil was on both shrouds and in the air box. I feel sure it was coming from that new over flow that goes into the air box. Ours smelt like oil....
How long before the tip over sensor shuts it down ?? I got knocked on mine this summer - the sensor stopped it but i was obviously not awake to time it lol. But it did shut off.
@sgrimmxdad
Yamaha posts their manuals on this site https://library.ymcapps.net/library/om/app/index.html?baseCode=6150&lan…
Follow the prompts to find the torque settings
Awesome, I actually couldn’t find these!
23 yz450 Manual:
https://library.ymcapps.net/library/om/contents/pdf/10/BHR-2819U-10_02…
Thank you so very much!!!
Anyone throw a full exhaust on and try to run a map on the smoothest setting? Im popping like crazy on decel .. I know an exhaust will lean it out a little but I also know Yamaha won’t let you tune it too out of whack to where it would do that.. unless the full system really leans it out thaaat much?
I never rode it stock so I don’t have anything to compare to. It’s got a no toil filter in it and 93 pump gas. Temp was about 50 degrees, that shouldn’t matter. used hi temp sealer around the exhaust when I put it together Doubt it’s leaking but who knows
other maps were all fine (stock, mxa, keefers 2 maps)
anyone experience this? I’ve ran full systems on prior yz450s and never had a problem with any map
Also anyone else new bike crazy stiff? Clickers are very close to stock sag at 104 I weigh 180 should be pretty set for me and it’s extremely stiff. Only an hour on it so far, hoping it just needs to break in some?
Please ride your bikes in stock form. They are really, really good. Most ‘upgrades’ make your bike perform worse.
This wasn’t meant for anyone in particular, but would be the advice I’d give you as well 👍
Pit Row
"twentythreemx wrote:
Also anyone else new bike crazy stiff? Clickers are very close to stock sag at 104 I weigh 180 should be pretty set for me and...More"
For me - I'm 6'2" and 210#, and I'm having my suspension done - 6 hours on the bike. And yes, I felt like it got a little softer after 3-4 hours. I don't know about exhaust for this bike, but the only reason to get exhaust is because you can or you like the look... similar to what swaldrop said
Takes about 10hrs most found......u should be ok on rear, front is soft and rides a bit low in stroke making it feel harsh. Just for shits and giggles - add some damping in front and see if it helps stay up a bit. Also......yeh 10hrs :-)
Yeah my 24 is stiff. I’m 175lb, sag is at 105. I have 4 hours on mine and it is currently at the shop for suspension work. I could not get the rear shock set up. Mine was just too stiff and kicking out like crazy. Idk where i had my front clickers at but I got them pretty comfy.
Not really what I was looking for. But I’m at the point in my life where I ride for fun and make my bike look good because I can and like it. (And the weight savings of a ti exhaust is pretty huge) I’m not doing it for performance. Agree any new bike in stock form will out perform myself and 99.9% on this forum.
'23 + '24 Suspension is really stiff, stock valving was stiffened substantially to compensate for Front End bias.....save yourself time, and have your suspension guy revalve. You wont get rid of the stiff harsh stock suspension feeling with more bike hours / break in....suspension feels like tradition great KYB yamaha suspension once you get front + rear revalved.
I guess it depends what you are comparing to as far as stiffness? My bike has 25hours and it's plenty soft compared to the 23 Husky. I have adjust torque specs, I run FCP mounts on the top and fork spring is 4.8 on one side and 5.0 on the other. I'm 180lb. Run clickers very open, I like my suspension soft and fast.
A good place to start to gain some compliance for the first 10 hours is reduce the engine mounts and swingarm torque by 20%. Then revisit your torque as the bike breaks in and go back to stock if you want more stiffness.
Make sure the front axle/fork is installed correct. Re-torque the clamps to be sure they are correct.
I had a few nuts/bolts that were way beyond factory torque numbers.
Not sure if you checked swingarm and linkage for grease from factory...
Not full exhaust, but I posted a few pages back my dad put a FMF 4.1 slip-on on his 24, running t4(hates running pump gas) and it was popping bad. He liked how the bike felt stock so we talked to our go to Yamaha guy and told us to throw in the hard hitting map that’s preset in the tuner app. Did that and all popping went away and gave him exactly what he was looking for out of the bike.
Have you tried all of Keefers maps?
agreed, engine mounts helped the most for me. Huge difference. Torque settings, a legit suspension tuner, correct ride height. All need to be just right otherwise yes, crazy stiff chassis imo.
Which mounts did you go with?
actually I machined my stockers. Have a guys, haha. But I felt it immediately, seriously. Stock it had a harsh feeling through the front I felt. Especially on slap down landings. After machining out the mounts, it was gone!
i did pull everything when I got it and greased and torqued everything to spec. im running luxon clamps which have also been torqued to their spec. side note, everything was greased really well, i was pleasantly surprised!
i tried the race map and torque connection map, last night I found him post 2 others that ill try (one i know i wont like, one should be more mellow and im hoping thats good). i had abougt 4-5 maps loaded up and the only 1 that popped was the one I set to be super mellow (slider all the way down) i didnt adjust parameters past what it automatically did from the slider.
i like as mellow of a hit as possible so those aggressive maps do not interest me at all lol
must just be the fmf leaning them out too much.
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