The airscrew is a very valuable tool for tuning your carb. not only can it change your biks jetting, but helps you choose the correct pilot jet Read More...
When you go to the races, the pits are log-jammed full of row after row of white cargo vans. If a dealer saw this, he's be hanging out in the pits every weekend handing out business cards Read More...
Forget about emulating Eli Tomac—think of yourself as John Force. Twist the throttle to the stops and leave it on as long as possible, you will go faster Read More...
Our goal back in 2021 was to crack 60 horses with no cam, valve, ecu, porting or pipe mods—just a hand-made airbox cover that was ugly, but spawn a movement Read More...
Tire sizing is an inexact science, because it depends on how the tire manufacturer chooses to make this measurement. Thus, most 120 rear tires are not true 120s. Read More...
There is a correct answer, but the grammar police never leave the comfort of their basement lairs and schoolmarm sensibilities rarely apply at the track Read More...
Desaxe engines have been around for a long time, even Henry Ford implemented offset cranks on the Ford Flathead V8 in the 1930s. Motocross engines have been adopting offset cranks for the last 15 years. Read More...
Two-stroke pipes can take a lot of abuse, but small dents, as long as they aren't in the first six inche sof the pipe can oftyen improve the power. Read More...
"Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." We didn't know that Greek mathematician Archimedes had ever raced Read More...
Modern four-stroke motocross bikes rely high rpm to make horsepower, but early valve sprins either broke for floated. Italian engineer Fabio Taglioni pioneered the desmo valve train and solved the valbe spring issues Read More...
Two-stroke spark plugs were subject to oil contamination and carbon build, but four-strokes don’t have this problem, but their plugs still wear out Read More...
If you asked the riders what the most prestigious championship in the sport is—they would say the one they won. However, if you ask them, which one they want to win, you might get a different answer. Read More...
Well, actually it is a melting kind of thing and a lost art in the motocross world. You can get more life out of old rubber with a tire groover Read More...
Don't obsess on your fork's air pressure. Find the correct setting for your speed, weight and track and stay with that number. From that point on depend on the clickers to fine tune the feel Read More...
It is a fact of life that engines used for racing are prone to breaking. Every part is stressed and could fail at any time—your job to to keep a close eye on the weak spots before they break Read More...