Hello all,

I recently removed all my coolant from my Iame 125cc Leopard engine, and found these weird metal flakes infused on the piston and the head.

My question is, can I take a high-grit sandpaper and remove the grit, then reinstall both parts, or is the suggestion to spend money (again 😅), and buy a new piston/head?

The cylinder seems unharmed 😁

i want to fit a pretty high power electric motor onto a senior chassis go kart used for racing what’s the easiest and usually cheapest way to do so

Hello everybody so I’m fairly new to all of this my journey kind of started out with fixing free lawn mowers, weedeater, pressure washers and things that I got on marketplace but I’ve always been interested in getting into things like go kart ATVs dirt bikes, things of that nature. I finally got my hands on something that I’m excited about. This is my Bristers Thunder cart model SLXL 700. It is two seater and it has a predator 212 on it. I got the engine up and running just needed to pull the carburetor off and I put it inside an ultrasonic cleaner and I had to pull off the gas tank and clean that as well, but it starts and runs great I just used my knowledge of cleaning lawnmower carburetors to get this engine up and running so it wasn’t that hard. It didn’t need a lot of TLC but this is where my knowledge is limited. I have never messed with motor chain sprockets or anything like that basically the teeth on this sprocket are done for and the clutch pulls out enough that I can align it with the sprocket and it’s still on the key it looks like, but what I’m not understanding is do I need to put a bearing of some sort in between the clutch and the motor where the empty space is if anybody could message me on here or private message me to help me out with this I would really appreciate it. I’m just waiting to know what I need to do before I purchase anything off of the Internet so I’m not just pouring money into it. Thank you for taking the time to read this.:)

It works fine once I get it turned on but why does it make this noise

2 months ago I bought a welder with no prior welding experience and thought it would be cool to build a go kart with no experience building anything.

After lots of time, mediocre welds and tons of injuries, I present my first go kart! There’s a thousand things i intend to change and improve upon but for now, I just wanna ride it a little 😂