Keefer Inc. Testing

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@paulelm4645 Сағат бұрын

How much HP do you get with that bike

@Mr.Stroke0331 Сағат бұрын

Has anyone actually posted dyno numbers?

@ShopTunes999 4 сағат бұрын

Since they gave it a 5 speed for some reason please tell me it's a wide ratio at least 😂

@leighthackham2170 6 сағат бұрын

The best yz250f "upgrade" for $1100 is to buy a 450 instead 😂. I wish I did the same with my "VET FRIENDLY" 350. Looking for more pep, I added full fmf and will be adding a vortex ecu. This will end up costing me $3kAUD on top of the original purchase price, and the 450 was $500 cheaper at the time of sale! 😂

@AmmoMX 8 сағат бұрын

No riding 😭😭

@Keeferinctesting 7 сағат бұрын

@@AmmoMX No one wants to see that. 😂 Some old dude riding Fox. Let’s just get to the good stuff. Is it good? 😂

@RandomRants525 8 сағат бұрын

That is a good kit. It makes me happy that lots of smart people come up with this good stuff for Moto's. The noise of the intake may be really loud because it is getting sucked thru a heap of holes. It may be better with slots instead of holes or maybe bigger holes. Try them all at once it might start whistling DIXE bro. And with the price of mufflers There is no way in hell I am paying over $1000 Strailian for a muffler. My Original KTM muffler does it's job perfectly after 23yrs of service. And It's prettymuch 3/4 aftermarket spec as standard any way. Also I think you used the SHORT SHIFTING term incorrectly. Short shifting is when you shift early in the revs on vehicles that have strong bottom end then die in the ass at high revs. I think you should of said QUICK SHIFTING. Quick shifting is when a vehicle makes the most power in the top end of the revs and gets there very quickly you have to shift quickly. And often, to stay in the power. I have riding and more content on my channel iffen anyone is interested. Great video mate. KEEP IT REAL ON THE BACK WHEEL 🤙

@Keeferinctesting 8 сағат бұрын

@@RandomRants525 Short shifting means you must shift early on this particular model because it goes through the power quick. So in order to get around the track in a quicker manner shirt shifting this machine is optimal. This is just the term we’ve used in R&D for engines that spool up quickly. “Short shifting” is a “rider” term not a mechanical term. Good stuff RandomRants and good comment Thanks for watching.

@RandomRants525 8 сағат бұрын

@Keeferinctesting All good 👍. Subbed.

@E63s_Scott 10 сағат бұрын

Everyone bashes on ktm but you don’t need 1700 on mods to make the engine hits good!!! That’s before the muffler, bars, grips, clutch, airbox mod and ear plugs 😂, makes a spring insert which is all you need literally, seem cheap

@Keeferinctesting 10 сағат бұрын

@@E63s_Scott You’re right about a KTM engine. You’ll just have to spend 1700 on your suspension. A “good” spring conversion is also not cheap. Yin and Yang.

@nickwukmir9853 7 сағат бұрын

Price is every thing. Modes are cheep stay away from 2 injector set up. Just keep spark arrested in bust compresion must run race gas.

@barcuda1250 10 сағат бұрын

Should have put up the dyno pull Yes the 2 injectors do have lots of benefits but good to know some numbers

@brianmartin414 11 сағат бұрын

No grease on that filter and a drilled lid is more of a worry. Go ahead and waste $1900 if it makes you feel good. Usually only young fools waste their money on such things. Its known as a lamwom...look at me waste of money. Btw,I didn't see any testing of this product in the video? How about adding 2 more injectors, that would be more better right?

@Keeferinctesting 11 сағат бұрын

Happy New Year!

@MustRideMoto 11 сағат бұрын

Hey Chris, Happy New Year from the vet dudes up here in Norcal. I've been considering the injector kit, airbox mod and Vortex on the same bike. Been thinking about adding a 270 big bore as well. Ultimate 250F vet bike, or is the big bore kit taking anything away from these mods? Thanks brother!

@Keeferinctesting 11 сағат бұрын

I have tried a YZ270F BB and it was great but didn't rev as good as modified 250F with 2nd injector/Vortex/HC piston. If you're looking for more torque than rev then going to a 270 kit with these mods is great! The one I tried was a Twisted Development build.

@keshmo12 11 сағат бұрын

Interesting idea but I'm kind of confused of what a second injector would do. Atomize the fuel better? That fuel has to travel a long ways. If they wanted it richer couldn't they just up the stock injector in ecu?

@barcuda1250 11 сағат бұрын

It cools the air, so more air density smaller injector so better fuel atomisation than 1 big dog So there is benefits But most of the go probably just the vp haha

@loganollis9489 12 сағат бұрын

In your maps what do you set your rev limit to?

@MartinezHQ 13 сағат бұрын

I love my 450. You can actually control how fast the motorcycle goes by giving it more or less gas using the throttle located on the right hand side of the handlebar 👌.

@Keeferinctesting 11 сағат бұрын

Underrated comment. :)

@KlintonSilvey 8 сағат бұрын

Nope. Gotta have an aftermarket ecu or every 450 is unrideable 🙄All that R&D and multiple options are just not enough. Will cost you multiple positions...

@marcoliubenov8092 7 сағат бұрын

I am a vet C rider and I support this message

@Keeferinctesting 7 сағат бұрын

@@KlintonSilvey If someone is saying they “NEED” an ECU on a 450 to ride one then that’s a problem. Do aftermarket ECU’s help? Of course. Do you need one? Of course not. Yamaha does a great job with their Power Tuner app to give the customer some nice parameters to play with that actually do help. However if you want to go further then there’s other options. If that option is not for you, continue to live your life and ride your dirt bike. There’s always tons of stock ECU map options on our site. Happy New Year.

@KlintonSilvey 7 сағат бұрын

@@Keeferinctesting I was just being sarcastic. These stock bikes are really good and ultimately that ecu in your right wrist can do a lot

@thomasdixon7152 14 сағат бұрын

Bike of the year - here how to fix it 😳🤪🙄

@Keeferinctesting 14 сағат бұрын

@@thomasdixon7152 BOY is a stretch but if you’re Matthes I guess this statement could be true. 😂

@RickyHardman313 14 сағат бұрын

Let’s see this setup on a 450 😂

@Keeferinctesting 14 сағат бұрын

@@RickyHardman313 No, thank you.

@MClyne24 14 сағат бұрын

Hey Kris Have you by any chance tested Twisted Developments 450 Airbox Mod with a Dual injector installed? I enquired about it through twisted a couple a months ago and they said its available for $2500 I think. Be interested to know if improves even further with that or not?

@Keeferinctesting 14 сағат бұрын

@@MClyne24 450 airbox test up on my site.

@MClyne24 14 сағат бұрын

@@Keeferinctesting I know Ive read it a couple times, but that was just the standalone 450 airbox mod, not with a 2nd injector installed also?

@Keeferinctesting 14 сағат бұрын

@@MClyne24 You are correct. Airbox and Vortex only. I did try second injector with 450 airbox and found more low end with this kit but also could be difference in mapping between two different tuners.

@MClyne24 14 сағат бұрын

@ Thanks mate

@tcmx712 10 сағат бұрын

the 450 airbox mod is just expensive snake-oil, there's a reason why in all the reviews they only compare a twisted 450 airbox & vortex combo against a stock bike instead of testing against a twisted vortex & standard airbox

@Peanutdenver 15 сағат бұрын

It's almost like a YZ350 would be great for vet dudes. My uncle races vet A class and has always said he thinks my YZ450 is just too much for him at 40 years old but the 250 is lacking. I think a 2 smoke 250 or KTM 350 will be my choice when I move to the vet class down the road...if I dont break too many more bones

@Keeferinctesting 14 сағат бұрын

@@Peanutdenver YZ350 would be amazing. New video on taming your YZ450 up Friday.

@halvorsonmx 15 сағат бұрын

The only thing that I severely dislike about these videos is it’s like hey we are testing the dual injector kit but it also comes with a drilled out airbox and power flow kit oh and it has an fmf exhaust. How can you determine its effects if it’s not just a one for one swap. Dual injector and tuned ecu for it with the oe style cover and backfire screen. Otherwise the airbox is probably doing more than the injector

@Keeferinctesting 15 сағат бұрын

So to simplify this a bit for you. I spoke about the FMF exhaust in this. YOU DON'T NEED IT! This kit will work without it. The FMF does "XYZ" with this kit. That was explained. We used a stock air filter/stock screen and not a Powerflow kit. That was shown. I tested with NON drilled cover and cover and findings were minimal on track, except for a more pleasant sound with no holes drilled out. I also have just tested the drilled out cover on our website with nothing else and gave those findings. So I guess at some point you will either have to trust in what I am saying or take it with a grain of salt. That part is up to you. You're only as good as who you trust. If it's not me, I get it, there are others out there that may be better for you. Happy New Year!

@halvorsonmx 14 сағат бұрын

@@Keeferinctesting No i totally trust you and I saw the clarifying part about the pipe. I guess I jumped to some conclusions and probably didn't state that properly. I mean some of it can get confusing not so much on your end but on the performance products end in the sense that you don't really know how much each individual part does if its always paired with other things. since us broke guys like the best bang for the buck. that's all and thanks for the response. Happy New Year too! EX: dual injector has to be mapped obviously but mapped pump vs race fuel. What's doing more the injector or the upgraded fuel? Then how does the fuel map change the ignition timing vs a stock pump gas map. It is probably way too complicated to do a shootout on something like that to really break it down and I'd never expect you to. That's all I meant. Hope I didn't offend!

@Keeferinctesting 14 сағат бұрын

@@halvorsonmx No ill will taken. Just making sure you understand where we are coming from. 🤙🏻

@raymondsiewert2720 15 сағат бұрын

Kris Keefer/Mosiman "Good Times !" 😂😂😂😂

@jasonowens-sg5uh 16 сағат бұрын

its the airbox, replace with 450f airbox and TD files, stock airbox design is bad, the tube collopses

@Keeferinctesting 15 сағат бұрын

@@jasonowens-sg5uh The 250 airbox must be used with this set up. We have heard of some problems about current 250 airbox design and have tested the 450 airbox but from what we felt on the track this dual injector kit gives the YZ250F more low end pulling power than the 450 air box mod does.

@kaneyoung2871 11 сағат бұрын

@@Keeferinctesting strange I have a 2023 yam 250f with a twin air filter cage and the bigger airbox cover and a full gytr pipe, and this new 24 i have now blows the 23 away, don’t feel any bottom end loose at all it’s a faster bike imo

@tcmx712 10 сағат бұрын

Bro the 450 airbox mod is just expensive snake-oil, there's a reason why in all the reviews they only compare a twisted 450 airbox & vortex combo against a stock bike instead of testing against a twisted vortex & standard airbox

@Fro10079 16 сағат бұрын

Happy new year to you and your family keefer. 💯

@Lee-mx5li 16 сағат бұрын

Great job on video

@Joe-pb3lx 16 сағат бұрын

can you buy and put a stock EFI nozzle to where the new second one is?

@Keeferinctesting 16 сағат бұрын

@@Joe-pb3lx From what I was told, you can’t. I asked that same question. Looking for more detail as in why we can’t.

@Joe-pb3lx 9 сағат бұрын

@@Keeferinctesting .......yeah, i think they dont want you to know the truth, but i know you, you like to be dead honest.....will be looking forward to some kind of explanation be it be truth or not from the other side

@boxinggloves87 16 сағат бұрын

Santa keef 😂

@Keeferinctesting 16 сағат бұрын

@@boxinggloves87 Vacation face. 😂

@jeffwarrack9059 17 сағат бұрын

can we get some clips of you riding it? Possibility in a bikini 😜

@tareksaba1ify 17 сағат бұрын

High Desert learning , Here are some synonyms for the term "upper echelon": aristocracy, elite, high society, and upper crust

@joshb692009 17 сағат бұрын

We need a video on how to fit these I’ve got one waiting in my workshop…

@Keeferinctesting 17 сағат бұрын

@@joshb692009 Incoming.

@colinsutton7944 Күн бұрын

If the honda had great suspension settings like the Yamaha, would you rate the honda better than the yamaha. If you had had to choose between racing a well tuned and setup up yamaha or a well tuned and set up honda, what woulld you choose?

@Keeferinctesting Күн бұрын

@@colinsutton7944 Me personally would be a Yamaha because of lack of vibration and less harshness in chassis. (Feel).

@billdeck9766 4 күн бұрын

As you get your core stronger, your lower back will be less of a problem also. Been doing that ever since 2 back operations.

@timberg331 4 күн бұрын

Kris I noticed your running Xtrigs on your sons bike. Have you tried the 21mm setting for better turn in? I have 22mm Ride engineering and looking for a little tighter turn in ability with these bikes.

@Keeferinctesting 4 күн бұрын

@@timberg331 We had to run these for his A Kit fork. Otherwise we would run stock clamps.

@davidgrunklee8407 5 күн бұрын

So they are updating all leftover 24's to 25 specs (clutch/mapping/switches etc)... thinking of grabbing one did you ever do any back to back with 25 crf250?

@Keeferinctesting 5 күн бұрын

@@davidgrunklee8407 Yes your dealer should update your 2024. I haven’t compared new one but I am doing a Honda vs. Yamaha 250 comparison.

@Sender76 6 күн бұрын

these tests only talk about "if it holds third" or "do you have to change to second"? LOL! Motocross it is not your sport, if you do not want to change gear buy the electric starkvag

@justinweatherly6520 7 күн бұрын

Was wondering if the new update fixes the bog ? Heard a few other people talk about it and I just recently got loaned a demo unit to try out and the bog was bad ??? Any advice?

@Keeferinctesting 6 күн бұрын

@@justinweatherly6520 Have your dealer update to 25 ECU setting. Fixed!

@cooganbeggs4942 7 күн бұрын

I was listening to your podcast episode about this event yesterday and it was hilarious 😂 It was great to see the event here on KZbin! cheers from Australia 🇦🇺

@georgecarmel6114 10 күн бұрын

I like the silver rims. Easier to clean and tire iron friendly. White plastic only looks good of you don't ride it.

@rynno34 10 күн бұрын

Ya I think this is prob close to 4-5 grand extras if you did it all yourself depending on where and what. Really sick job HONDA.. Keefer i havent ridden a honda in 15 years do they still feel small compared to say a Yamaha? Still as a mid 40 year old dude im prob going with a 350 for next bike..

@tonyparamotor9487 10 күн бұрын

hi iam a novice on a kx 450f 2016. coming into corners the whole bike feels unstable. as if it wants to wash out. can you help.i feel weary just riding the bike.