2021 MX Build Review | 2020 Yamaha YFZ450R Update

[@AustinRohr]

🔥🔥🔥PARTS LIST!!! Motor: FMF Factory 4.1 RCT exhaust w/ titanium Megabomb header ($844) www.motosport.com/fmf-factory-41-rct-full-exhaust-system?variant[FMF000P]=FMF000P-X001-Y097&variant[FMF000D]=FMF0005-X001-Y001 Yamaha YFZR/X Intake System (airbox version) 2015+ ($325) shop.fuelcustoms.com/product-p/in009-15-bx.htm Vortex ECU ($699) www.kbmotorsports.com/atv/tuning-management/vortex-ecu.html Peak Racing Vortex anti-vibe mount ($45.99) peakracingproducts.com/products/m5x-vortex-mount 38Motorsports YFZ450R breather box ($120) 38motorsports.com/products/yfz450r-breather-box GYTR AIS delete kit ($19.99) www.rockymountainatvmc.com/parts/yamaha-gytr-air-induction-system-removal-kit-p Clutch: Basket (PRIMARY DRIVEN GEAR COMP.) 18P-16150-00-00 Washer (PLATE, THRUST 1) 5XD-16154-00-00 OR Yamaha YFZ450R 14 up Clutch Basket Upgrade Kit ($328.99) bnr-motorsports.myshopify.com/collections/yfz450r-x/products/yamaha-yfz450r-14-up-clutch-basket-upgrade-kit Oregon Coast Powersports (Head + 1 hour on dyno + cam = roughly $700) oregoncoastpowersports.com JE Piston ($200-250) ***See local dealer or favorite online retailer*** WPC ($67) www.wpctreatment.com/ Rekluse RadiusCX Clutch ($1,029) www.kbmotorsports.com/atv/engine/clutch/rekluse-radiuscx.html 2000-2019 Kawasaki KX65 1.8 Bar Radiator Cap ($42) Kawasaki Part #49085-1077 Chassis: Works Connection engine plugs ($39.95) www.worksconnection.com/p18082-engine-plugs Works Connection oil fill plug ($24.95) www.worksconnection.com/p18124-oil-fill-plugs Works Connection 1-2-3 EZ Build w/ TI bolt kit ($183.35) www.worksconnection.com/pc18191-clutch-perches-1-2-3-ez-build Works Connection block off plate ($19.95) www.worksconnection.com/p18056-block-off-plates TM Designworks case saver ($32.95) www.tmdesignworks.com/p-1042-atv-case-saver-pn-ycs-yzr.aspx Peak Racing skid plate ($140) peakracingproducts.com/products/2004-to-2013-yfz-450-carb-skid-plates Factory43 front bumper ($125) www.factory43atv.com/en/shop/yamaha-yfz450r/yamaha-yfz450r-pare-choc-avant-avec-plaque/ Factory43 EVO nerf bars ($445) www.factory43atv.com/en/shop/yamaha-yfz450r/yamaha-yfz450r-propeg-nerfbars-with-netted-heel-guard/ FourWerx YFZ450R carbon fiber frame guards ($90) www.fwcarbon.com/collections/yamaha-yfz450r/products/yamaha-yfz450r-x-09-carbon-fiber-frame-guard-set FourWerx YFZ450R carbon fiber tailight eliminator guard ($80) www.fwcarbon.com/collections/yamaha-yfz450r/products/fwc-09-yamaha-yfz450r-carbon-fiber-tail-light-cover FourWerx universal rear heat shield ($60) www.fwcarbon.com/collections/yfz450r-heat-shields-misc/products/universal-carbon-fiber-rear-heat-shield FourWerx wave seat cover ($160) www.fwcarbon.com/collections/yamaha-yfz450r/products/fourwerx-custom-09-yamaha-yfz450r-x-wave-seat-cover Tusk hour/tach meter ($22.95) www.rockymountainatvmc.com/parts/tusk-tach-hour-meter-p GPS Victory Box Black Kit ($476.82) www.gpsoffroadproducts.com/shop/gps-victory-box-black-kit-vb1-pro-mx-kit-8x8-vl-10x5-41-a6/ Maxxis RAZR/RAZR Cross tires no longer available in these sizes. See new RAZR Plus MX tire... www.maxxis.com/catalog/tire-582-109-razr-plus-mx Odi ATV Ruffian half waffle lock-on grips ($25.99) www.rockymountainatvmc.com/parts/odi-atv-half-waffle-lock-on-grips-ruffian-p Pro Armor BNR Plug in Kill Switch ($49.99) bnr-motorsports.myshopify.com/collections/yfz450r-x/products/pro-armor-plug-in-kill-switch BNR Start Button For YFZR/X ($48.99) bnr-motorsports.myshopify.com/collections/yfz450r-x/products/bnr-start-button-for-yfzr-x BNR YFZR Clutch Sensor Bypass ($7.49) bnr-motorsports.myshopify.com/collections/yfz450r-x/products/yfzr-clutch-sensor-bypass Visual41 Designs custom graphics ($250) instagram.com/visual41design/?hl=en Neken Variable Diameter Handlebars 1-1/8" ($74.95) www.revzilla.com/motorcycle/neken-variable-diameter-handlebars-1-18?sku_id=1073555 Precision Shock & Vibe ($229) precision-rp.com/Shock-Vibe-complete-system-ATV_c_57.html JM Industries Stem Clamp Kit ($48) www.jmindustriescf.com/product-page/yamaha-stem-clamp-kit JM Industries Battery Hold Down Bracket ($48) www.jmindustriescf.com/product-page/yamaha-yfz450r-battery-hold-down-bracket Force Parts YFZ450R Subframe Braces ($195) forcepartsracing.com/collections/frontpage/products/yamaha-yfz-450r-subframe-black-texture JSR Factory 43 EVO Nerf Bar Nets (starts at $80) jsrmotodesigns.com/collections/factory-43/products/factory-43-evo-nerf-bars PEP EZ Pull Clutch Cable Arm ($32) www.amazon.com/PEP-Clutch-Cable-Yamaha-YFZ450/dp/B07932QX7Q WPS Featherweight Battery ***See local dealer***

[@arreguinracing2732]

It was a great season with you man! Lots of great battles and memories. Thank you for being a good competitor 🤝

[@AustinRohr]

Right back atcha man! Go get'em in Pro Am this year!

[@dylandahle9578]

Absolutely insane brotha

[@joshuaferguson9247]

Awesome video man, I also have a 2020 yfz with the fmf 4.1, vortex and FCI. I didn’t measure the inside diameter of my FCI to see if it was bigger than the factory intake, do you think it’s possible that I’m getting less air flow from my FCI vs factory intake? Thanks as always!

[@AustinRohr]

It's possible! They're not all this way, but the shop that dynoed my bike said it seemed like a recent batch at the time had come out thicker than normal. Either way, we were able to get a lot out of it opening it up to 48mm. Just have to be patient with the Dremel and not make it too thin to the point that it's weak. And obviously clean up all of the plastic before reinstalling.

[@PowerLineRacing87]

Sweet 👌🏽⚡️

[@twoguncorcoran4733]

Did Jeff keep the stock valves or replace with + size intake valves? Did he give you a baseline horsepower increase for the port job alone compared to the stock head? He's posted some ported head vs stock head graphs for Honda's on his FB page that are damn impressive!

[@AustinRohr]

We did all stock valves! And he was still tweaking the head stuff a bit at the time so we didn't have a clearcut before and after. The difference was pretty dramatic, though!

[@twoguncorcoran4733]

@@AustinRohr OCP has got a few things figured out...It wasn't that many years ago other guys were still figuring out the R heads and not able to get to 55hp without spending a lot more $$... At the end of the day you have a great running quad that's also reliable. I wonder what the RP Race throttle body would do to your build..

[@Factory43R]

Are you running the radius cx?

[@AustinRohr]

Yeah, I was. I really enjoyed it but it's certainly not for everyone.

[@Factory43R]

@@AustinRohr yeah I’m using it now too. Thinking of switching to the Hinson just to try it out. No issues with the Rekluse tho. Runs pretty good.

[@barneychamorro]

What coolant in your radiator?

[@AustinRohr]

Just the standard Yamalube stuff, nothing special at all.

[@Fox250R]

So the vortex was $699??

[@AustinRohr]

Correct. They're not cheap. They're not even perfect for that matter. But a piggyback tuner won't solve the stock ECU issues and sending the ECU off to be reprogrammed is great so long as you don't decide to change anything with the machine.

[@Fox250R]

I thought they were 799

[@AustinRohr]

@@Fox250R it's possible the prices have gone up since I bought mine.

[@Fox250R]

Haha I was getting excited lol I’m about to buy one for my 21 SE