YZ250 Power kit

[@skyhawk409]

Nice kit,new head and custom pipe.52hp @ 9000 with out changing port timing and a very smooth looking power delivery. Nice job for +5hp.

[@zackk695]

Once again we need you to run a dyno showing stock performance and then with Scalvini with nothing changed but the pipe.

[@benyaminbergstrom2598]

Great video, well explained 👍🏻. Only thing missing is a dyno pull 😊

[@zackk695]

I got my Scalvini pipe and it sat in the box a few weeks and rusted. No excuse for that. The pipe is exposed to water so it has to be stainless and they can still get that cool look

[@kingkong81icloud]

I had a 1991 YZ 250R was fast AF , faster than the newer ones for some reason I don’t know why , I wish I got a 125

[@SethMullins418]

What is the jetting your using

[@barra245t2]

What do you think about dep pipes expansion chamber.

[@zackk695]

Your dyno results were scrolling to fast for us to see it and we don’t know which pipe is which on the dyno markings. All we can assume is the Scalvini had the 2 more horsepower

[@chadglover_239]

What is the jetting ? 175/45 ???

[@Boorer_555]

Mint setup wish I knew about you guys I've just bought a Apex head 1.20mm squish have a dep pipe and rad valve fmf shorty jetting is spot on I wonder what she's pulling

[@okerhrh4139]

Hows that going? Am gonna go for exact same setup but pc slip on not shorty

[@okerhrh4139]

What jetting r u using atm? For that setup? Altitude n weather? Any ballpark numbers

[@Boorer_555]

@@okerhrh4139 hey bud I'm jetted at 172 main 48 pilot 50 power n3ew needle 2nd clip with motul 800 32,1 and 50/50 110 race gas and BP 98 I'm pretty much riding around sea level upto 1000 ft

[@Wreckhouse69]

Hate to be that guy but those scalcini pipes rust like crazy and have splitting problems :(. Hope you have better luck tho it looks bad ass

[@Yz4Life]

It’s raw steel. After every ride you must wipe down the pipe and coat it with wd-40 or some kind of anti-oxidizer.