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It probably needs replacement. I'd turn the sprocket until it binds to try to see what is causing it. Like I said; mine had plates migrating and they ended up riding up the teeth like yours does in the video. Or, if the pins and bushings don't move freely, the chain may be stiff and could pretty...

Your first video finally got to 1080p60... You can see the binding and then the snapping back as the chain engages properly again.

If the sprockets are straight and aligned and you see the chain intermittently riding up the teeth instead of staying seated as it turns, the chain is bad. Look at the outer jackshaft sprocket from the side and turn it through a full cycle off the chain. It looked like it was riding up in the...

I used PGN chain: https://www.amazon.com/gp/product/B07NPNFDRP/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

It is hard to see with the camera swinging wildly, but it looks like your jackshaft to sprocket chain is binding up. Do the links move freely (e.g., not rusted/damaged) and are those two sprockets lined up straight? I had to replace that particular chain due to the plates migrating and causing...

The chain is #25 stock. You can probably find a suitable motor sprocket here: https://electricscooterparts.com/sprockets25chain-motor.html

Faster than the zero rpm you are getting now? Yes. The 24v motor might have spun faster at 48v than the 48v motor, though. That is because more voltage spins the motors faster and the smaller motor likely gets more rpm per volt (but less torque per amp) compared to the 48v motor. However, it...

Yours was rated for 280W. Most 36v controllers are rated at 500W minimum and the motor will draw pretty much whatever the controller gives it. It might be fine... or not if the wiring just can't handle it for instance. I am running a 500W rated motor with a 1000W controller on our Dune Buggy...

I meant the 24v motor that had the melted wires.

Any #25 chain should do. I used CountyLine from Tractor Supply. If your wiring is too thin to carry the current the length of the wire you can shorten the length and/or use a lower gauge. Your motor should have the appropriate gauge for its rating, but that isn't always guaranteed. I personally...

#25 is the size of chain and the number of links is how long it is. I would get a new chain. The jackshaft is that intermediate shaft between the motor and the axle that has sprockets on it. It further modifies your gear ratio in a compact space. I'd never seen someone tear it off and use the...

The stock chain is #25. If you're changing the chain length or deleting the jackshaft, you'll need master links and a chain breaker wouldn't hurt. The chain is cheap, so it might be a good idea to get a new one that matches the master link manufacturer. I've run into problems before trying to...

The wires will spark as the connection is closed. That part is normal.

I built with separate parts. I'd personally go 48v instead of 36v for 30mph. My son's Dune Buggy is good for 22mph with these parts: 36v 1000w controller "500w" XYB-6B2 Currie brushed motor 3x12v 10ah Dakota Lithium batteries (36v) Custom 3/4" Axle 22t axle sprocket 5" Azusalite wheels with...

What did you do with the frame? It looked like you were getting pretty far along.

Running matched voltage components is good and the safe bet way to do it. However, it is possible to over-volt a motor and even have a higher voltage battery than the single voltage rating of the controller. It all depends on the components you are using; many actually operate safely with a wide...

Krisuno did a video series on it. He uses them for a dirtbike too.

You mean one of these?

My kids love that trailer and I have used it many times specifically to get one or both of them to sleep at night. I haven't pulled them at 30mph, though. I reinforced the trailer, but I would still worry. My oldest did request speakers and I do already have onboard sound with Bluetooth. I...

Awesome. Crazy coincidence that you found the forum I post on. To mark the occasion, here's a couple videos that weren't public from a couple years ago with an older build version of the big kart: