21 yz250f

Timo_2824 wrote:

Hahaha 1 to 2 hp from a filter.... my bobble head added 10 hp when I bolted it to my handlebars!

skypig wrote:

Can you imagine if Yamaha finds out?
They might do it!!

17judd17 wrote:

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple...

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple of days ago.

skypig wrote:

Can you imagine if Yamaha finds out?
They might do it!!

17judd17 wrote:

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple...

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple of days ago.

Baton Rouge wrote:

Nice info, do you gain also on the max RPM ?

17judd17 wrote:

Was just under 1HP as it hit the limiter, but I'm confident that will be improved once I get time to play with the mapping some...

Was just under 1HP as it hit the limiter, but I'm confident that will be improved once I get time to play with the mapping some more.

Timo_2824 wrote:

Hahaha 1 to 2 hp from a filter.... my bobble head added 10 hp when I bolted it to my handlebars!

skypig wrote:

Can you imagine if Yamaha finds out?
They might do it!!

17judd17 wrote:

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple...

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple of days ago.

Timo_2824 wrote:

Hahaha 1 to 2 hp from a filter.... my bobble head added 10 hp when I bolted it to my handlebars!

skypig wrote:

Can you imagine if Yamaha finds out?
They might do it!!

17judd17 wrote:

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple...

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple of days ago.

skypig wrote:

Can you imagine if Yamaha finds out?
They might do it!!

17judd17 wrote:

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple...

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple of days ago.

Timo_2824 wrote:

Why don't you include the scale in your photo? Also you can't add other other mods like an airbox cover and mapping and then say it...

Why don't you include the scale in your photo? Also you can't add other other mods like an airbox cover and mapping and then say it was a filter. You need to put the factory filter back in and test with the same cover and mapping to be a fair comparison. Generally 3 dyno pulls each need to be posted as well so we get an idea of the variance, it could be 0.5 hp just between pulls.

skypig wrote:

Can you imagine if Yamaha finds out?
They might do it!!

17judd17 wrote:

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple...

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple of days ago.

tek14 wrote:

How was 20 vs. 21 on dyno?

17judd17 wrote:

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple...

1-2 Hp is not far off a realistic gain with the TA filter set up and CRM airbox. I tested them on a 21 a couple of days ago.

Timo_2824 wrote:

Why don't you include the scale in your photo? Also you can't add other other mods like an airbox cover and mapping and then say it...

Why don't you include the scale in your photo? Also you can't add other other mods like an airbox cover and mapping and then say it was a filter. You need to put the factory filter back in and test with the same cover and mapping to be a fair comparison. Generally 3 dyno pulls each need to be posted as well so we get an idea of the variance, it could be 0.5 hp just between pulls.

17judd17 wrote:

Thanks for the tips Timo, if I have any trouble operating my dyno in the future I’ll be sure to be in touch so you can...

Thanks for the tips Timo, if I have any trouble operating my dyno in the future I’ll be sure to be in touch so you can sort me out....

PTshox wrote:

Curious how you feel about it compared to a 350... as I have a 350 and have been looking at of these. Please keep us posted.

PTshox wrote:

Curious how you feel about it compared to a 350... as I have a 350 and have been looking at of these. Please keep us posted.

yak651 wrote:

I used the no toil kit. Not as pretty but accomplished the same thing (plastic cage instead of aluminum)

yak651 wrote:

[img]https://p.vitalmx.com/photos/forums/2020/10/30/456803/s1200_44641DF6_CC3A_4D87_BC41_AF8DBF9B9486.jpg[/img]

sandtrack315 wrote:

I like the twin air one because you can easily get down in the airbox and clean it / make sure no dirt fell off your...

I like the twin air one because you can easily get down in the airbox and clean it / make sure no dirt fell off your dirty filter when you took it off.

One thing I am worried about with the new air box is that any dirt that comes off your air filter during a change now drops directly into your intake...

zeromarine wrote:

Just got my bike! Won’t be able to ride until spring. Was reading some tests and some people moved the front forks to 5mm instead of...

Just got my bike! Won’t be able to ride until spring. Was reading some tests and some people moved the front forks to 5mm instead of the stock 7mm. Is this necessary? just wondering. Thanks

zeromarine wrote:

Just got my bike! Won’t be able to ride until spring. Was reading some tests and some people moved the front forks to 5mm instead of...

Just got my bike! Won’t be able to ride until spring. Was reading some tests and some people moved the front forks to 5mm instead of the stock 7mm. Is this necessary? just wondering. Thanks

sandtrack315 wrote:

Not necessary but it balances out the bike well. It’s a bit front end heavy at 7mm.

Ryan625 wrote:

What is everyone’s opinion on the FCP kit for the yzf? I’m thinking about ordering a set

Ryan625 wrote:

What is everyone’s opinion on the FCP kit for the yzf? I’m thinking about ordering a set

Vet57 wrote:

I always use the TA Power Flow kit..pricey but very much worth it. [img]https://p.vitalmx.com/photos/forums/2020/10/30/456795/s1200_X001_Y035.jpg[/img]

I always use the TA Power Flow kit..pricey but very much worth it.

yak651 wrote:

I used the no toil kit. Not as pretty but accomplished the same thing (plastic cage instead of aluminum)

yak651 wrote:

[img]https://p.vitalmx.com/photos/forums/2020/10/30/456803/s1200_44641DF6_CC3A_4D87_BC41_AF8DBF9B9486.jpg[/img]

yak651 wrote:

I used the no toil kit. Not as pretty but accomplished the same thing (plastic cage instead of aluminum)

yak651 wrote:

[img]https://p.vitalmx.com/photos/forums/2020/10/30/456803/s1200_44641DF6_CC3A_4D87_BC41_AF8DBF9B9486.jpg[/img]

luckyguy19 wrote:

Seems like these are on epic back order. I wanted to pick up two kits for my 250 and 450.

Ryan625 wrote:

What is everyone’s opinion on the FCP kit for the yzf? I’m thinking about ordering a set

mxengineer1 wrote:

My buddy added them to his 2020 YZ250F. (3) of us all felt it helped front end traction feel at turn in and settled the bike...

My buddy added them to his 2020 YZ250F. (3) of us all felt it helped front end traction feel at turn in and settled the bike on rough higher speed sections. Not a big difference but noticeable. He sold that bike and bought a 21 YZ250F. We have all ridden the 21 YZ250F and it has the better turn in feel and just feels better overall stock than the 21 YZ250F with FCP mounts. None of felt the need for FCP engine mounts on the 21 YZ250F.

Ryan625 wrote:

What is everyone’s opinion on the FCP kit for the yzf? I’m thinking about ordering a set

mxengineer1 wrote:

My buddy added them to his 2020 YZ250F. (3) of us all felt it helped front end traction feel at turn in and settled the bike...

My buddy added them to his 2020 YZ250F. (3) of us all felt it helped front end traction feel at turn in and settled the bike on rough higher speed sections. Not a big difference but noticeable. He sold that bike and bought a 21 YZ250F. We have all ridden the 21 YZ250F and it has the better turn in feel and just feels better overall stock than the 21 YZ250F with FCP mounts. None of felt the need for FCP engine mounts on the 21 YZ250F.

Ryan625 wrote:

I have the chance to pick up a set for $300 for my 20, do you think it’s worth that? I already have the suspension done...

I have the chance to pick up a set for $300 for my 20, do you think it’s worth that? I already have the suspension done, just trying to make the bike suit me as well as I can. I already love the stock platform.

As for removing the screen from the stock cage, are you running a backfire filter? Is anyone actually worried about a 250f lighting a filter on fire?

Vet57 wrote:

Has anyone tried or recommend optional maps for the 21'?

Vet57 wrote:

Has anyone tried or recommend optional maps for the 21'?

navalseabee wrote:

Tried both the Keefer maps and the Yamaha exciting power map. I split between the Keefer Free Feeling and Yamaha map. I don’t think the “high...

Tried both the Keefer maps and the Yamaha exciting power map. I split between the Keefer Free Feeling and Yamaha map. I don’t think the “high end power” map really does that much to help carry 3rd more than the others but does take away some more bottom. That being said TD did a vortex for me that I should be getting today, pretty excited!

Vet57 wrote:

Has anyone tried or recommend optional maps for the 21'?

navalseabee wrote:

Tried both the Keefer maps and the Yamaha exciting power map. I split between the Keefer Free Feeling and Yamaha map. I don’t think the “high...

Tried both the Keefer maps and the Yamaha exciting power map. I split between the Keefer Free Feeling and Yamaha map. I don’t think the “high end power” map really does that much to help carry 3rd more than the others but does take away some more bottom. That being said TD did a vortex for me that I should be getting today, pretty excited!

Baton Rouge wrote:

Let us know when you try the Vortex ECU from TD and does it feel compared to stock, i'm torn between the vortex or the GET...

Let us know when you try the Vortex ECU from TD and does it feel compared to stock, i'm torn between the vortex or the GET ECU !

But anyway both should work great on this bike, i will go where i have the better deal

twentythreemx wrote:

Got my 21 and got to break it in over the weekend. Coming from a 19 and then 20 yz450 its a bit of a change...

Got my 21 and got to break it in over the weekend. Coming from a 19 and then 20 yz450 its a bit of a change for me and I tihnk its still going to take me another ride or 2 to adapt to a 250 again... I think the biggest struggle is figuring out what gear for corners.

I tried the top end map, the exciting power and the free revving map, I decided to leave the exciting power as my main map and the top end map for map 2. I think I like the exciting power one the most.

I went up 1 on the rear sprocket, hoping it would help me use 3rd a bit in some corners.. I honestly can't say I noticed a ton of difference but the track I broke it in at was pretty huge/wide open compared to the track I rode the next day where it was really broke in and i started to really ride it hard, probably should have waited and changed the sprocket after but i've got 2 feet of snow now so that was probably it til I can head south.

I just put a ful ti fmf system on it. Excited to try that. It definitely shaved a few pounds off over the stock system. i've got a superflo kit on order from no toil as well, but who knows when it will ever show up.

i'm 5'10 175lbs, the sag was right at 104 after about 1.5 hrs for me without touching it so I probably wont even touch that. I set the clickers to match what keefer suggested, wasn't far off stock.. seems good, not doing anything bad. Might go in a few more clicks all around to stiffen it a little more. I did not play w/ the fork height yet though, kind of forgot about that, wish I would have. Will do next time.


overall the bike's a blast compared to riding a 450..it feels so light and flickable, i can come into corners with more speed and not be afraid to get on the gas sooner. I think that should translate to better laptimes for me.. but hard to tell for now. just need to learn to let it rev more.