Take your pick! Two are fuel injected and two are carbureted—and one is by far the best in the 2023 125 class. Everything you need to know Read More...
No carburetor, no main jets, no needles, no clips and no pilot jets are joined by the acronyms EFI, ECU, EMS, CDI, TPS, TPI and TBI. This isn't you granddad's two-stroke Read More...
Two-stroke fuel injection only uses the throttle body to meter the amount of air, the fuel is injected into the engine at the transfer ports. Read More...
First and foremost, fuel injection on four-stroke motocross bikes is a fait accompli . No one is fighting it. It's a done deal. The Yamaha YZ250F was the last holdout and they quit holding out this year. There is no going back to the… Read More...
No butterfly means absolutely no obstruction to the airflow at 100 percent throttle opening. Given the fact that most motocross bikes use almost identical fuel-injection throttle bodies, it is surprising to learn that there are many… Read More...
2012 HONDA CRF450 Press release: Since its introduction, the CRF450R has served as the standard by which all other bikes are judged in the big-bore class of motocross machines. In 2012, Honda raises the bar once again with a host of… Read More...
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