7 Minute Motorcycle Teardown – Mechanic Crash Course
It doesn't take long to learn the core of motorcycle mechanics! We bring you a short and sweet breakdown of what every component on a motorbike does.
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Video Transcript
An motorcycle is a machine that converts combustion into rotation.
Unplug your Chick-Toc for seven minutes and you'll understand how every part works.
The gas tank is kind of like a tank for gas.
There's no combustion without a combustible.
On the bottom of our tank is a petcock, which is a cocky name for a tap.
Off.
On.
Fuel flows through this hose.
into the carburetor.
Tough.
Frickin' tough.
Carbs just force gas through jets, because a spritz mixes better with air.
How much air you add is kind of like how long a teenager spends in the bathroom.
It's entirely dependent on what you do with your wrist.
Twist the throttle open and it pulls a cable, which opens the carb to more airflow.
More air, more boom, more fast.
That air comes from here, the air box.
It's like a box for air.
By forcing our bike to breathe through the air box, we force it to breathe through the air filter.
Otherwise, you get COVID-19 in your engine.
After combustion, we exhale through the exhaust.
This is your chance to save a polar bear, an old lady's eardrum, and a forest firefighter.
Alternately you could be a dick and cut your muffler off.
And that is how a bike goes boo.
moves my ass, but not directly, thank god. This cushy seat softens the blow.
Combustion is violent for the engine, too, so we call this a wet sump. Basically, your
gears relax in a perma-bath of hot oil. Like Arnold.
Some bikes have dry sumps, meaning there's a miserly old oil tank. It squirts just a
bit of lubricant wherever needed, and takes it back again.
Cheap bastard.
It's mainly spinny stuff we care to oil.
And to get things spinning, you kick this.
Kickstarter.
Now, which cog would you like to spin, sir?
First?
Fourth?
You need only boot this lowly servant called a gear lever.
Whichever part of the transmission shaft you engage, it spins a countershaft, which is
why we call this the countersprocket.
That in turn turns a chain, which turns the rear sprocket, which turns the rear wheel.
I could show you if I hadn't already.
pirated the chain for another video.
Yar.
Avast, matey, to stop the spinning,
we pull this clutch lever.
The clutch cable pulls these friction plates apart,
so the ones connected to the crankshaft can keep turning,
while the ones connected to the transmission shaft can not.
And that is how a bike gets spinny.
While the engine is rotating, we should mink like squatters and steal power off it.
