The YFZ450R has a broad, smooth power band in stock form, which is amplified by the combination of HMF’s Competition Series Exhaust and Fuel Optimizer. HMF’s Fuel Optimizer, manufactured by Dobeck, comes with a map pre-installed to work with HMF’s exhausts and the airbox lid removed. Go. Jump to Latest Follow Status Not open for further replies. 2018 YFZ450R SE : MY MODS...HEAVY FAST MOVING THUMB. We cranked the Optimizer’s fourth setting up to 8 and the low-end hesitation went away. Its off the showroom floor MX-width stance, long-travel suspension, and stellar fuel injected motor made the … The HMF Optimizer is pre-loaded with baseline settings for your Yamaha YFZ450R/X 2009-2020 using a HMF exhaust. Buy HMF 641412360001 EFI Optimizer: Exhaust - Amazon.com FREE DELIVERY possible on eligible purchases Review HMF Fuel Optimizer 641742000000 AUTHORIZED DEALER - FAST FREE SHIPPING. Pre-Programmed with the best settings for your HMF … You must retune your machine when youre adding an exhaust system, so not tuning your machine will void the warranty of your exhaust. The Single System. If you need to make adjustments according to your riding style, simply use the fuel controller to make your changes. Overall, we found the power to be focused in the midrange, providing a very broad and usable spread of power to work with. Pre-Programmed with the best settings for your HMF … Incorrect air screw settings can sometimes cause it, I've been able to tune it out (or hide it..) with an air screw adjustment in some cases. Press the mode button once, this will save the setting and advance to the next adjustable mode b. Pre-loaded map developed by HMF specifically for quads that run a HMF … Initial testing yielded the same low-end hesitation, and occasional pop we encountered under deceleration previously. 5. JavaScript is disabled. The HMF Optimizer is a Fuel-Injection Controller that has been pre-programmed with the proper tuning specifications for your HMF exhaust. The HMF Optimizer is a Fuel-Injection Controller that has been pre-programmed with the proper tuning specifications for your HMF exhaust. Replacing the restrictive and heavier stock silencer yields the largest gains in power. The HMF Optimizer is a piggy-back EFI controller because it does not replace the stock ECU, but rather monitors the signals to the injectors and makes fuel adjustments based on the mode settingsthat have been pre-loaded at HMF. 1 - 20 of 29 Posts. You must retune your machine when you're adding an exhaust system, so not tuning your machine will void the warranty of your exhaust. As power hungry individuals, we opted to try the full Competition Series exhaust. Please click Accept Cookies to continue to use the site. V application is for the Yamaha YFZ450. ... Cookie Settings. I tried some different settings on the HMF optimizer with no success. We believe the performance of HMF’s Competition Series Exhaust and user-friendly, on-board adjustability of their Fuel Optimizer, really let us tap into the full potential Yamaha built into the YFZ450R’s engine. ATVs. Buy HMF Engineering 641412360001 Gen 3 Optimizer at Walmart.com Installation of the Competition Series exhaust was quick and drama free with OEM quality fitment. 1,678 Posts. Yamaha YFZ450/450R (2004-Present) Need Re-Jetting Help? > HMF Racing 641412360001 Pre-Programmed with the best settings for your HMF exhaust Yamaha YFZ 450R-X 09-14. 3. HMF Fuel Controller uses the latest GEN III technology and is pre-programmed with the best settings for your engine. - Installing the HMF Optimizer The first step when installing the Optimizer is to connect it to a … 1; 2; Next. Buy HMF Engineering Gen 3 Optimizer - 641412360001 FREE Shipping on qualified orders - Partzilla.com if your fuel … Aftermarket Performance; Pre-Programmed with the best settings for your HMF … Manufacturer: HMF This new exhaust system was developed with "Trimax Core technology" which features adjustability between three levels of power and sound … The Competition Series Silencer is constructed of stainless steel, leading back to its 6063-T6 aluminum silencer body and stainless steel end cap. It’s also worth noting that the lighter Competition Series exhaust takes a few pounds of high-slung weight off the machine. This self-mapping technology uses an exhaust sensor to create a closed-loop system. HONDA TALON EXHAUST FROM HMF. HMF Fuel Optimizer: $329.95. We then backed the 0 to ¼ setting down to 7, 6 on the ¼ to ¾ throttle position, and 5 on the ¾ to full throttle position for a clean running, hesitation-free setup. The HMF Optimizer is a piggy-back EFI controller because it does not replace the stock ECU, but rather monitors the signals to the injectors and makes fuel adjustments based … A forum community dedicated to Yamaha YFZ owners and enthusiasts. We believe the performance of HMF’s Competition Series Exhaust and user-friendly, on-board adjustability of their Fuel Optimizer, really let us tap into the full potential Yamaha built into the YFZ450R’s engine. HMF, YFZ450R, Competition Series Exhaust and Fuel Optimizer Test: WITH VIDEO. All available HMF™ exhausts take advantage of HMF’s™ superior engineering to produce unmatched durability, … Mount the Optimizer in a safe area where you have easy access to it for on site tuning. Winning almost every major magazine shootout since its inception in 2009, we wondered when Yamaha would seriously update it. Their larger diameter head pipes are constructed of corrosion resistant, stainless steel. Low-end torque, horsepower, and throttle response really came alive. Toggle menu. The HMF Optimizer is a Fuel-Injection Controller that has been pre-programmed with the proper tuning specifications for your HMF exhaust. I have a 2007 Raptor 700SE and need help with my fuel settings. No matter your skill level, the HMF YFZ450R is easier and more fun to ride, and, of course, faster accelerating. Go. The HMF Optimizer … The silencer’s core features a triangular-shaped portion that HMF claims helps focus horsepower and torque gains in the bottom end and midrange, without sacrificing top end. This will give more air and less fuel. Why accept that from your ATV? Jump to Latest Follow Status Not open for further replies. FEATURES: Pre-Programmed with the best settings for your HMF … How does the Optimizer work? We designed, fabricated, built, tested (and tested again) the signature HMF … You did not say if the lid was on of off. Of course, if you are like us and can benefit from more power one weekend and less sound the next, HMF seemingly designed the Competition Series Exhaust for you, and on the YfZ450R, it exceeded our expectations. It might be on youtube. We love that this exhaust system makes reducing noise in sensitive riding areas so easy. The pumped up midrange is delivered in a smooth surge transitioning off the bottom, resulting in more power directly translating into increased forward momentum. You must retune your machine when you're adding an exhaust system, so not tuning your machine will void the warranty of your exhaust. Take control of your ride with the Power Commander V fuel tuner — built to give your vehicle more horsepower to the ground (wheel horsepower), optimized driveability and the fuel efficiency you need to leave routine in your dust. Winning almost every major magazine shootout since its inception in 2009, we wondered when Yamaha would seriously update it. Categories. Thanks, Matt. Save Share. Latest. Here at HMF Engineering we were fortunate enough to get one in the shop which is here to stay. Adding a head pipe often yields a bit more horsepower on stock engines, becoming even more important as you add a higher compression piston, cams, or other internal motor mods. HMF, YFZ450R, Competition Series Exhaust and Fuel Optimizer Test: WITH VIDEO. You must retune your machine when you're adding an exhaust system, so not tuning your machine will void the warranty of your exhaust. The easily removable end cap houses the removable spark arrestor and one of three different inserts, which HMF says, “…provides three different levels of sound and three different levels of power.” While we don’t ever see ourselves running one of the quieter inserts in search of decreasing power, we love that this exhaust system makes reducing noise in sensitive riding areas so easy. If we added more internal motor mods to our YFZR and needed more fuel than the Optimizer’s external adjustments could provide, we could send the Optimizer to Dobeck and have the controller’s baseline map richened up. HMF tells us that on the YFZ450R, the quietest stage 1 insert produces between 92 and 96db, the stage 2 insert between 96 and 100db, and the stage 3 insert between 100 and 105db. July 15th, 2015 | by Joe. Pre-programmed with the best settings for your HMF exhaust. The HMF Optimizer is a Fuel-Injection Controller that has been pre-programmed with the proper tuning specifications for your HMF exhaust. The pumped up midrange is delivered in a smooth surge transitioning off the bottom, resulting in more power directly translating into increased forward momentum. Exhaust: Competition Series Exhaust $595.95 We had our plastic off and the Optimizer ready to go in 20 minutes. oemcycle.com offers the best prices on HMF Engineering EFI Optimizer (Part#641412360001) with fast shipping and excellent customer service. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada, yfzcentral.com is an independent Yamaha enthusiast website owned and operated by VerticalScope Inc. ... Gen 3/3.5 Fuel-Injection Optimizer by HMF Racing®. Plug it in and ride. Chances are your neighbors will appreciate it as well. Content on yfzcentral.com is generated by its users. Many bikes have a emission control system (PAIR, for example) that injects air into the exhaust, sometimes removing/blocking these corrects the issue. Plug it in and ride. yfzcentral.com is not in any way affiliated with Yamaha Motor Company. The HMF Optimizer is a Fuel-Injection Controller that has been pre-programmed with the proper tuning specifications for your HMF exhaust; You must retune your machine when you're adding an exhaust system, so not tuning your machine will void the warranty of your exhaust.Pre-Programmed with the best settings … It's dependent on your machine too. Pre-Programmed with the best settings for your HMF … Past Quads- TRX450er, YFZ450r, Banshee 350 King Quad 750, YFZ450, Z400, Rancher 350, Big Bear 400, RZR 800, Quest 650. You don’t have to keep the exhaust sensor in place at all times, just long enough to create your own map and … Repeat for all injectors. [Archive] Page 18 The place to discuss all the information that is Yamaha YFZ450 & YFZ 450R ATV specific... Yamaha YFZ450 & YFZ450R ATV Information [Archive] - Page 18 - ATV Riders Forum ATV Riders Forum > Sport ATV Model Information > Yamaha YFZ450 & YFZ450R ATV Information We took our HMF outfitted YFZ450R to test rider, Dave Trimble’s, private practice track to put the HMF power upgrades to the test. Another avenue in the fuel-injection world is offered by a company called Bazzaz. Performance enhancing products like exhausts systems, typically require the engine’s fuel settings to be modified to run at optimum performance. Fuel Manager: Fuel Optimizer              $269.95. We then installed a Power Commander and a different brand aftermarket exhaust, swapping between four different maps, but unable to fully cure the low-end hesitation without using our laptop to write a custom map. Summary: A good aftermarket exhaust system and revised fuel map are essential for getting all the available power out of a modern, fuel-injected, sport ATV engine. With this "Plug 'N' Play" controller, you can be comfortable knowing your exhaust system is running at it's optimum performanceThe proper tuning will ensure the full performance potential from your HMF aftermarket high performance pipe and is necessary on all machines. Its improved low-end performance and broad power band, with gains in performance throughout, substantially improve the race-ability of the YFZ450R for beginners and advanced racers alike. Duncan Racing Vortex ECU Yamaha Raptor 700R First Look. Pre-Programmed with the best settings for your HMF … The quiet core option and substantially enhanced low-end performance make this setup a great option for trail riders looking to improve performance with minimal effect on sound output. You need to have the bike setting on level ground , like concrete. If we were going to ride with the quietest stage 1 insert, HMF tells us that we may need to back down a bit on the Optimizer’s yellow, or ¼ to ¾ throttle setting.