Blog
2026-10-23 Motocross Wheels: Sizes, Fitment and Replacement Parts
Compare motocross rims and wheel sets, check bike fitment, choose rim protection, and understand spokes, wheel offset and replacement options.
2026-10-23 Dirt Bike Inner Tubes: Sizes, Valve Types and Fitment
Find the right dirt bike inner tube with manufacturer sizing examples, clear valve-type definitions, heavy-duty comparisons and practical installation checks.
2026-10-23 Motocross Tire Mousse: Fitment, Sizes and Buying Guide
Learn how tire model, size and rim width determine mousse fitment, with six NitroMousse chart examples and guidance on Platinum and Plushie options.
2026-10-23 Dirt Bike Tire Tube or Mousse? Choose the Right Setup
Compare inner tubes and mousse by tire feel, flat protection, fitment and upkeep, with IRC, NitroMousse and TUbliss 5150 options.
2026-10-23 KTM 500 EXC-F Exhaust ECU Combo: FMF 4.1 & Vortex Guide
Explore the KTM 500 EXC-F FMF 4.1 and Vortex ECU combo, including 2024–2027 fitment, slip-on contents, map controls and setup checks.
2026-10-23 Dirt Bike Exhaust ECU Combo: How to Choose a Matched Setup
Compare KTM and Honda exhaust/Vortex ECU packages, understand slip-on versus full-system contents, and plan maps, existing parts and installation checks.
2026-10-17 Motocross Exhaust Comparison: Pipes, Mufflers and Fitment
Compare motocross exhaust options using real FMF and Yoshimura examples, two-stroke pipe differences, dyno claims, construction, sound and complete setup cost.
2026-10-17 Dirt Bike Exhaust System: How to Choose the Right Setup
Choose a dirt bike exhaust around your riding goals. Compare slip-ons, full systems, fueling needs, sound control and Tokyomods ECU/exhaust packages.
2026-10-17 Keihin FCR-MX Carb Rebuild Kit: Contents, Fitment and Options
Compare Tokyomods FCR-MX rebuild kits, learn which components they include, and decide whether your carburetor needs seals, a slide plate or professional service.
2026-10-17 Keihin Carb Diagram: Find Parts and Read Callouts
Find the right Keihin carb diagram, understand callouts and jet numbers, and turn a parts reference into a more accurate parts order.
2026-10-13 YFZ450R Exhaust Buyer’s Guide: Fitment, Design and Setup
Compare YFZ450R exhaust configurations, FMF options and sound priorities, then plan fuel calibration and maintenance around your complete ATV setup.
2026-10-12 Keihin Carburetor Guide: Types, Circuits, Fitment and Maintenance
Learn how Keihin carburetor designs differ, what their fuel circuits control, and how to choose the right parts and maintenance approach for your bike.
2026-10-11 Dirt Bike ECU Reprogramming for Competition: A Buyer’s Guide
Prepare for competition ECU reprogramming with the right bike, parts and fuel details. Learn what to confirm for supported stock and Vortex ECUs before sending one in.
2026-10-11 Can a Bad CDI Cause Bogging? How to Diagnose the Real Cause
A failing CDI can cause bogging, but so can fuel, spark-plug and intake problems. Follow a practical diagnostic sequence before replacing ignition components.
2026-10-09 Dirt Bike ECU Upgrade vs. Stock: Which Setup Makes Sense?
Keep the current ECU, adjust its settings, reprogram it or replace it? Compare the options based on your dirt bike and the improvement you want.
2026-10-08 Race Fuel for 4-Stroke Dirt Bikes: Octane, Oxygen and Power
More octane does not automatically mean more horsepower. Learn how oxygenation, fuel formulation and the right ECU setup affect 4-stroke dirt bike performance.
2026-10-08 Yamaha YFZ450R ECU Fitment: What to Check Before You Buy
Choosing a Vortex ECU for your Yamaha YFZ450R? Check the exact application, supplied maps, exhaust and intake setup, and optional map-switch compatibility.
2026-10-07 How to Choose a Dirt Bike ECU: Fitment & Setup Checklist
Before ordering a dirt bike ECU, gather the bike, exhaust, engine and fuel details that matter. Use our checklist to get application-specific help from Tokyomods.
2026-10-06 Vortex ECU: How to Choose the Right Setup for Your Dirt Bike
Learn how to match a Vortex ECU to your dirt bike or ATV, compare reprogramming options, and choose mapping for your exhaust, intake and engine setup.
2026-07-22 CRF450L Buyer’s Guide: What’s Worth Upgrading
The most important upgrade for a Honda CRF450RL is correcting the factory ECU. The CRF450RL runs extremely lean from the factory to meet emissions regulations. This lean fueling causes excessive engine heat, flameouts, and abrupt throttle response. Before spending money on exhausts, suspension, or cosmetic parts, most riders should address fueling and ignition with a proper ECU replacement like the Vortex X10 ECU.
2026-03-30 KTM TPS Reset & Idle Setup Guide 2017-2026
Have you ever adjusted the TPS from the stock position? If so please follow these instructions to get it back to the factory position. Make sure the YELLOW enrichment knob it not engaged.
2026-03-24 How to Uncork the CRF450RL | ECU, Exhaust & Performance Guide
The Honda CRF450RL is one of the most capable dual sport bikes ever built—but from the factory, it’s heavily restricted. Riders often describe it as feeling “choked,†running hot, and lacking the power expected from a 450 platform. The good news? You can completely transform the bike with the right upgrades. In this guide, we’ll show you exactly how to uncork your CRF450RL for better power, smoother throttle response, and improved rideability.
2026-03-24 How to Install a Vortex ECU on CRF450RL / CRF450L
If you’re riding a CRF450L or CRF450RL and feel like the bike is restricted, running hot, or lacking the power it should have—you’re not imagining it. From the factory, these bikes are heavily restricted due to emissions regulations. Installing a Vortex X10 ECU is one of the most effective upgrades you can make. It transforms throttle response, improves power delivery, and helps the bike run cooler with proper fueling.
0026-02-24 Motorcycle Engine Oil Explained
Motorcycle engine oil does more than lubricate your engine—it also protects your transmission and clutch. In this guide, we break down SAE viscosity ratings, API standards, and JASO MA/MA2 classifications, and explain why friction modifiers can cause clutch slip in wet clutch motorcycles. Whether you ride off-road, dual sport, or performance-built bikes, choosing the right oil is critical for reliability and performance.
2026-02-15 CRF450L & CRF450RL ECU FAQ
CRF450L & CRF450RL ECU FAQ
2026-03-15 KTM 500 EXC-F ECU, Cooling & Rideability Guide
The KTM 500 EXC-F is one of the most capable dual-sport and off-road platforms available, but many riders experience excessive heat, flameouts, and abrupt throttle response in stock form. This guide explains why these issues occur and how proper ECU tuning and fueling corrections transform the KTM 500 EXC-F into a cooler, smoother, and more controllable motorcycle.
2026-02-15 Carb Parts That Fix Real Problems: Leaks, Hesitation, Hard Starts & Poor Throttle Response
Whether you’re refreshing a worn Keihin FCR-MX or dialing in jetting for your exact setup, Tokyomods stocks the essentials—jets, seals, o-rings, accelerator pump parts, and precision billet upgrades.
2026-01-01 CRF450L & CRF450RL Buyer’s Guide: What’s Worth Upgrading (And What Isn’t)
The most important upgrade for a Honda CRF450L or CRF450RL is correcting the factory ECU. Both models run extremely lean from the factory to meet emissions requirements, which leads to excessive engine heat, flameouts, and abrupt throttle response. Before spending money on exhausts, suspension, or cosmetic mods, most riders should address fueling and ignition with a proper ECU replacement like the Vortex X10 ECU.
2025-12-30 CRF450L/RL ECU, Cooling & Rideability Explained
CRF450L/RL ECU, Cooling & Rideability Explained. Short Answer (Read This First). The Honda CRF450L runs lean from the factory. This lean fueling causes excessive engine heat, flameouts at low RPM, and abrupt throttle response. The most effective fix is a properly mapped ECU—specifically the Vortex X10 ECU—which corrects fueling and ignition timing. A cooling fan kit complements this by preventing boil-over during slow, technical riding.
2024-11-14 Supermoto Racer Magazine FLASHBACK
It was right after the 2003 Red Bull Supermoto A-Go-Go Ben Bostrom’s championship-winning Works Honda CRF450R. It was a sight—Honda pulled into Apex Raceway with a crew of winged red shirts ready for the test. Ken Vreeke from Vreeke & Associates, which happens to be Dunlop’s ad agency, came out to see what all the hoopla was about.
2023-09-21 Vortex ECU KTM & Husky OEM Map Switch Operation
The Vortex X10 ECU will interact with the KTM/ HUSKY Standard Handlebar Switch in a similar way as used with the standard ECU.
202-04-19 How to Shift a Dirt Bike Using a Clutch
Racing on your dirt bike can be challenging, especially when you aren’t well-acquainted with the controls. It’s essential to know how the gearbox works and how to brake and operate the clutch to make your ride successful. Fortunately, getting on your dirt bike remains incredibly easy once you understand all its systems and how to engage them properly.
2022-04-10 Top 12 Dirt Bike Tools You Should Always Have
Dirt bike owners spend a huge chunk of their time maneuvering new trails and exploring terrains in the most remote regions. The experience of riding in such topography is an unmatched pleasure, though the joy might be short-lived in case of mishaps.
2021-12-06 7 Tips for Cleaning Your Dirt Bike
Dirt bikes, and motocross bikes in particular, are purpose built for mx tracks. After a fun-filled experience at the track, your bike will be dirty and potentially caked with mud. You may be exhausted by the end of the day, and the task of cleaning off your dirty machine may feel overwhelming. Still, you cannot leave your bike in such a condition overnight. The cleaning process is crucial for your bike to last longer.
2021-11-19 KTM / HUSKY TPS Reset
Have you ever adjusted the TPS from the stock position? If so please follow these instructions to get it back to the factory position. Make sure the YELLOW enrichment knob it not engaged.
2021-11-03 Vortex ECU Map Switch Operation
he handlebar switch allows the user of the Vortex ECU to switch between 2 of the 10 pre-programmed maps. Map 1 (fixed down position) and any other map (selectable via the ECU X10 switch). The ECU handlebar switch plugs directly into the Vortex ECU.
2021-10-05 5 Low-Cost Ways to Improve Your Dirt Bike's Horsepower
If you are a dirt bike owner, you know how much your bike means to you and the excitement it invokes, especially when you are pushing it at its full power. Dirt bikes need proper care and maintenance for them to run optimally and at their maximum horsepower. If you’re new to riding be sure to pop over to 7 Riding Tips for Dirt Bike Beginners.
2021-06-25 7 Riding Tips for Dirt Bike Beginners
Today, dirt bikes and motocross riding have become popular sports. As more beginners look into purchasing their own dirt bikes, it’s important to understand the basic riding tips before you set off for your first time on a dirt bike. There are many riding styles for dirt bikes such as motocross, enduro, trials, freestyle, and supercross. These and more can be performed using a dirt bike, and anyone can enjoy them.
2021-04-20 Top 5 Motocross Bikes Available in 2021
Motocross bikes epitomize the moto experience for many daring and adventurous riders. They are exhilarating and provide a sense of freedom as you cut through challenging terrain. Every motocross fan wants their own motocross bike. Many own several here in the US.
2021-03-10 Top 10 Dirt Bike Accessories Under $100
Whether you are new to dirt biking or someone who has been riding dirt bikes for some time, there are some accessories that you will want to consider purchasing. Riding a dirt bike can be somewhat expensive, so if you’ve purchased a bike and you want to restrict your budget, the following dirt bike accessories for less than $100 will help you make purchases that won’t break the bank. The list below is broken down into accessories and clothing to ensure your safety and comfort when riding your bike.
2021-03-05 Top 5 Best Sounding Yamaha YZ250F Exhausts
When it comes to choosing an exhaust for your dirt bike, it’s not just about the bike’s power and performance, but also about the noise. While both quality and performance are your number one priority, the sound can be a good indicator of this and is something important to consider. Having the right exhaust for your bike can not only sound great, but it can change the appearance of your bike as well.
2020-02-13 TPJ San Diego SX Race Report
Dylan Merriam celebrated a birthday this week and is looking forward to celebrating a new year of life with his return to racing in Atlanta next weekend. Austin Politelli and Jimmy Weeks qualified 27th and 28th respectively. Weeks was charging hard in the LCQ running in 5th place when a rider crashed in front of him causing him to go down as well; he was able to work back up to an 11th place finish. Politelli was looking smooth in his heat race, but struggled quite a bit in the LCQ; he ended up with a DNF (did not finish) for the night.
2020-02-07 TPJ Oakland SX Race Report
The 2020 Monster Energy Supercross series made its way to Oakland, Ca last weekend for round 5. This was the SX Futures round last year where 450SX team rider Jimmy Weeks earned his professional License.
2020-01-29 TPJ Glendale SX Race Report
Round 4 of the 2020 Monster Energy Supercross season in Glendale, AZ was also the first Triple Crown race of the year. Triple Crown races consist of 3 Main Events during the night program for both the 250SX class and the 450SX class; to learn more about this format click here
2020-01-29 TPJ Anaheim 2 SX Race Report
A full truck makes Ted Parks (and all of you) very happy, and that’s just what we had at Round 3 of the Monster Energy Supercross in Anaheim, Ca. Three 450SX team riders and three 250SX riders each back with their sights set on putting in a solid ride, making the night show and ultimately progressing on to the Main Event. The season started off rough, but our riders don’t quit and they proved that this past weekend.
2020-01-15 TPJ St. Louis SX Race Report
Jimmy Weeks was unable to compete Saturday due to an illness; he’s feeling better and is confident he’ll be lining up this Saturday at Anaheim 2 to try his hand at making his first Main Event of the year. Dylan Merriam and Austin Politelli both had lap times that qualified them for the night show. Merriam was 1 spot off in his heat from transferring directly to the Main Event. Merriam and Politelli went 11/5 in the LCQ respectively. Both have shown major growth already this season – look for them in a Main Event Race here soon!
2020-01-08 TPJ Anaheim 1 SX Race Report
The 47th Season of Supercross launched this past weekend at Angels Stadium in Anaheim, CA. This coveted race series is home to the sport’s most elite athletes (backed by amazing teams/sponsors); each with the intention of winning races and the #1 plate after 17 brutal rounds.
2017-10-11 Upshiftonline.com Project Bike CRF450RX 2017
This bike is Honda’s answer to KTM’s popular XC and Yamaha’s FX models. Honda has mainly gone after the full trail guys with the X models but this RX model is very close to their R motocross model. It comes with an 18†rear wheel, E start, and larger fuel tank. For this build we tried to keep it a bit simple since the bike is very good in stock form.
2017-08-28 Adam Enticknap In for Transworld Slam
The TransWorld SLAM Festival presented by ALTA Motors is rapidly approaching, and the September 9 event at Milestone MX Park in Riverside, CA will be highlighted by the annual SLAM Pro race. There is some exciting news regarding this year’s running of the exciting pro race, with the most important being the doubling of the purse to $10,000! This year, racers will compete on the Milestone main MX track (not Supercross) in two five-lap sprint motos. A special, pro-only section will be incorporated for the SLAM Pro race.
2017-08-23 TPJ Budds Creek
The TPJ Fly Racing team travelled to Mechanicsville, MD to compete at the second to last round of the Lucas Oil Pro Motocross series at Budd’s Creek.
2017-08-15 TPJ Unadilla 2017
The TPJ Fly Racing team travelled to New Berlin, New York for the Unadilla National – one of the final rounds of the Lucas Oil Pro Motocross series.
2017-08-02 TPJ Washougal 2017
he TPJ Fly Racing team made it to Washougal, WA for the Washougal National on July 29th, at Washougal MX Park.
2017-07-10 TPJ Southwick 2017
The TPJ Fly Racing team travelled to Southwick, MA to compete at the Southwick National, a part of the Lucas Oil Pro Motocross series.
2017-07-06 TPJ Redbud 2017
The TPJ Fly Racing team travelled to Buchanan, MI to compete at the Red Bud National as a part of the Lucas Oil Pro Motocross series.
2017-06-26 TPJ Muddy Creek 2017
The TPJ Fly Racing team traveled to Blountville, TN to compete at the Tennessee National at Muddy Creek raceway as a part of the 2017 Lucas Oil Pro Motocross series.
2017-06-19 TPJ High Point 2017
This week, the TPJ Fly Racing team traveled to Mount Morris, PA for the High Point National round of the Lucas Oil Pro Motocross series.
2017-06-08 TPJ Thunder Valley MX 2017
The TPJ Fly Racing team traveled to Lakewood, CO for the third round of the Lucas Oil Pro Motocross series at Thunder Valley Motocross Park.
2017-05-30 TPJ Glen Helen MX 2017
The TPJ Fly Racing team traveled to San Bernardino, CA to compete in the second round of the Lucas Oil Pro Motocross championship at Glen Helen raceway.
2017-05-09 TPJ Las Vegas SX 2017
This week the TPJ Fly Racing team had five of seven athletes qualify for the night show. In a night full of ups and downs, the TPJ Fly Racing team had lots of television time on Fox Sports 1, and Adam Enticknap went on to qualify for the main event.
2017-04-26 TPJ Salt Lake SX 2017
The TPJ Fly Racing team travelled to Salt Lake City, Utah for the fifteenth round of Monster Energy Supercross.