Husqvarna has released the details about its 2020 motocross and cross-country lineup. All of the models have new graphics, and the FC motocrossers now come with an additional interchangeable airbox cover. According to Husqvarna, the optional airbox side panel offers increased airflow for a sharper throttle response and more aggressive power delivery.
The biggest news in Husqvarna’s 2020 lineup is the TX 300i. It’s similar to last year’s carbureted TX 300, but is now fuel injected. It features a newly developed cylinder along with a new heavy-duty header pipe that has a corrugated surface to increase strength for impact resistance and reduce noise levels.
The engine is fitted with a redesigned Dell’Orto 39mm throttle body. Airflow is regulated by a butterfly connected with a twin-cable throttle cam, which is operated by the handlebar throttle assembly. A throttle position sensor provides airflow data to the control unit. Oil supplied by the electronically controlled oil pump via an oil intake tube is mixed with the incoming air to lubricate the moving engine parts.
The engine management system (EMS) features a control unit located below the seat. The ECU defines the ignition timing and amount of fuel to inject based on several sensor readings such as intake air pressure, throttle position, and water temperature, plus a new ambient air pressure sensor.
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