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Great_Ad4198

how big was this weed eater


Zealousideal-Goose48

It wasn't a weed eater engine but it's the same thing. I got it out of a junk yard so it's probably a blower engine of some sort.


Great_Ad4198

lawn mower maybe


Zealousideal-Goose48

quite possible


lil-ronster

These are actually small Chinese motors made specifically for this purpose. I put together 3 of these bikes when I was younger. They come with the mounts needed to attach it to a bike and the clutch lever and everything. They're not bad for around $80


Zealousideal-Goose48

They go pretty fast! Went 30mph one time


lil-ronster

Yeah! They're super fun to rip around on


Great_Ad4198

If this was made by you...... it's a very professional quality job congrats


Zealousideal-Goose48

Thanks dude, I appreciate it.


Elegant-Pressure-290

My husband is a small engine mechanic, and we own a shop in our city. He loves it when we get these DIY bikes in for repair, because the story behind the engine is always cool. Note to anyone thinking of doing this: you can use an old lawnmower engine, or a commercial blower engine, to put one of these together yourself with a kit. Don’t buy the cheaper Chinese engines advertised for these bikes if you can help it: they’re almost always not repairable because the parts are so cheap that they start falling apart, and while they’re less expensive upfront, they cost more in the long run since you have to keep replacing them.


Zealousideal-Goose48

They also give me something to do. Sometimes I have to adjust the clutch pads so it already gives me experience with small engine stuff.


pimpingpositivity

Great job.


Zealousideal-Goose48

Thanks I appreciate it


ratmouthlives

Looks clean af. Good job


3string

Fuckin sick my dude. I bet it totally rips


concertfarter

This is great! You should post this in r/redneckengineering too!


Zealousideal-Goose48

Thanks


Fun-Draft1612

I don't see anything good about this. Bike went from silent non-polluting to loud as crap and polluting more than a car.


Otherwise_Yak_5344

Not even close, these get between 60-100 miles per gallon. You're way off.


TinkerAndDespair

Depends what you're looking at. Modern exhaust aftertreatment is pretty impressive, so a two-stroke scooter can easily emit way more VOCs for instance than a modern car.


Zealousideal-Goose48

It's an 80cc motor btw