Engine, fuel, cooling, electrics, suspension, brakes — systems map in plain English
Understand the machine before the myth: air + fuel → combustion → gearbox → chain to the wheel; battery/ECU/ignition keep spark honest; radiator and oil manage heat; forks and shock control the chassis; hydraulic discs turn lever squeeze into stopping power. A systems course for curious riders and future MSF students — not a replacement for a license or training.
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Air intake filters and meters air; fuel injectors (or carb) mix; spark ignites; exhaust leaves. Cooling (liquid radiator or air fins) + oil keep metal alive.
Find on your bike: airbox area, radiator if any, oil sight glass or dipstick.
Clutch disconnects engine from gearbox so you can shift. Gears multiply torque. Chain or belt final drive spins the rear wheel.
Slack and lubrication on chains matter — dry chains eat sprockets.
Pro tip. Neutral is a gear position — not 'engine off.'
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