We Built a Lethal Yamaha YZ250F! | Mod Squad

[@torr-michaelbennetta9785]

Interesting. No GYTR stamp visible on the head (?)

[@chestertownelectric6290]

Did you add the high compression piston and race fuel that is recommended for the GYTR head?

[@MustRideMoto]

Pat, did you mod the ECU? Maybe a vortex? Keep up the great vids!

[@townsendYXZ]

Love this sound of that Yoshi on the yzf never seen a yoshi on one sounds good

[@lumberwulf]

#raspy rasp bro

[@morley3810]

I don't get it with this new YZ250F. Several reviewers saying it's dog slow off the bottom and feels slow and weak overall. AJ Catanzaro for example, but I've heard others too. Then Pat, you come along and say it has the most power and hits hard down low even before the mods. So which is it? Why are there such wildly different takes on this bike? I haven't ridden one, so the only thing I know for sure is that all 250Fs sound awful, and the Yamaha sounds the worst of the bunch...

[@goneridingparts]

I have a 2025 yz250f & 2021 YZ250f. The 21 has more bottom end, and just a stronger feeling motor, even though it has 37 hrs, versus the new 25 yz250f. I'm a yamaha guy, but it needs some help.

[@tomvanheeswijk5560]

For me the 2024 yz250f is a little disappointing on the low end , I have a shop and I think RMZ 250 is better

[@luder3311]

I have a 24 yz250f and wr250f 22, both are quite slow with the stock exhaust. Put a full acrapovic on wr and full yoshi on yz became very fast. The first thing you should do on yamaha when you buy it, dump the stock full exhaust and put an aftermarket one. Overall both are the best bikes I ever rode, had husq te300 tbi and husq fc250 24 before

[@zcmx]

How much did all these bits cost in total? 👀

[@joelballard4955]

Pretty sure the ktm has 2-3 more horsepower. Yamaha has a 13 front sprocket which makes it feel snappy. Top speed is down 7-10 from the KTM. But maybe I’m wrong.

[@E63s_Scott]

The best bike I really want myself to believe it. It doesn’t have the best power in class its 4th isn’t it? it’s just feels that way of the bottom apparently as the reviews say but when I rode the 23 at test day and one a few weeks later with a full FMF and hard hitting map, they sounded fast, but both felt flat as a pancake and no top end, then they closed the air is and added a heavier cam chain to the 24 making it sluggish? I loved the frame but at no point did I feel any zip from the motor Also I rode the new triumph and for a first brand new model the engine was fast, loads of top end power and rpm and it had crazy small 48 rear sprocket I believe it was and still felt faster than the stock yam. ( i don’t modify my engines )

[@kennypotts_1]

No bumpsteer.

[@JakeScott-ke3sh]

That giant street bike is definitely not the best, maybe with over hype it is