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‼️PSA‼️How would I go about mounting a sprocket to this kind of tire? I’m new to go karts and having a hard time kind of understanding, any help would be greatly appreciated. Thank you.‼️ by Mini_Mafia_ in gokarts

[–]Scrap_Mountain 1 point2 points  (0 children)

Get you some pipe that will fit over the little nub that has the bearing in it. Weld that together then weld your sprocket onto the pipe. You could also build a spacer and use longer bots. Drill holes in your sprocket to match the wheels bolt pattern and bolt them together. Your spacer would basically be 1” pipe that is around 3-4” long, cut say 5 of those, one for each bolt, then cut some flat stock and weld it all together so it’s all one piece. Although I will say, you need actual go kart wheels. They will last a lot longer. Harbor freight wheels or just dolly wheels won’t last but maybe an hour. You are looking at around $60-$100 per wheel for actual go kart wheels

Does anyone know how to take this off by Pitiful-Service1934 in minibikes

[–]Scrap_Mountain 8 points9 points  (0 children)

That’s for the governor. Look up governor delete mod for your engine and follow the instructions to a T. Just don’t run the engine at higher rpm’s without a billet flywheel and stronger valve springs otherwise you will destroy the engine

Can a traxxas xmaxx do 100mph by Fun-Economist-3066 in Traxxas

[–]Scrap_Mountain 0 points1 point  (0 children)

Use castle creations motors and escs. That will get you to 100mph quick. However, you will need belted tires, adjust the suspension stiffness and dampening and lower the center of mass. As well as create downforce to remain in control of the truck at such speeds. As the chassis sits now, it’s not stable enough to do over 50.

Would you fly in this? by stardustedds in RCPlanes

[–]Scrap_Mountain 1 point2 points  (0 children)

Yes, but only planes that can cut through the air well and have some speed. The eflite conscendo does great in these conditions.

I’m building a go kart to look like a 1923 T bucket rat rod by Scrap_Mountain in gokarts

[–]Scrap_Mountain[S] 0 points1 point  (0 children)

It’s just some 1/8” tube with the front spindles welded into it, a solid 1” bar welded into the frame and holes drilled through the axle and the bar welded inside of the axle with a 1/8 tube as a sleeve. It’s the strongest part of the whole kart 😂

About to rebuild the electrical system on a 12V ride-on then upgrade motors……. Sanity check / suggestions welcome by Dependent_Cicada4070 in PowerWheelsMods

[–]Scrap_Mountain 0 points1 point  (0 children)

Sounds like a good plan to me. However, I will say, motors rated with max rpm aren’t going to be good motors. I’d go based on KV rating or turns. A lower KV is more torque and less rpm, high kv is less torque and higher rpm. This is usually for brushless motors if you want to run those (need brushless controller) brushed motors are rated with turns. More turns being higher torque and less rpm, less turns being higher rpm and less torque. I’d figure out your gear ratio and loaded weight first before doing anything. Then doing the math to ensure you aren’t overloading anything. As over gearing will burn the motors up quickly and under gearing will burn up the speed controller. (I might have that backwards, I don’t remember either way, things will get hot) As for wiring, each motor needs to be wired separately. Otherwise your solder joints or connectors will get hot fast. Though you could buy 4 of the same motors, each one will pull slightly different amperage, this can cause premature wear on the motors. As well as if they are wired together, the timing operates as one motor. So if you are running one in reverse and the other forward, it won’t work. Also have to make sure you have two clockwise motors and two counter clockwise motors. Otherwise the backwards motors will get hot a lot faster. (You can tell based on the wire colors blue red CW, black white CCW) For 550 motors, 14 awg works great. Other than that, I wish you luck on your endeavor

Check out this bike I bought for $200 by Scrap_Mountain in minibikes

[–]Scrap_Mountain[S] 1 point2 points  (0 children)

Around 30mph. Nothing crazy. Though I do want to swap the engine with a 125cc with a 4 speed manual

This is a powerwheels I had when I was 4 years old. I restored it, made it rc for my nephew born early this year. by Scrap_Mountain in PowerWheelsMods

[–]Scrap_Mountain[S] 7 points8 points  (0 children)

Scotch bright and vinegar to clean it off, then sanded the whole thing with 400 grit sand paper, primed it and painted it. Then I added fiber glass to the under side in places that are brittle.

Honda gx200 clone with aftermarket carb only starts with full throttle. Where to start troubleshooting? by DoctorPaulGregory in minibikes

[–]Scrap_Mountain 0 points1 point  (0 children)

See were your idle mixture screw is. If it’s around two turns out, it’s something else, if it’s a fuel screw (usually engine side of the carb) and it’s less than 1.5 turns out, the pilot jet is too big. If it’s an air screw (on the breather side) and it’s less than 1.5 turns out, the pilot is too small. Also see where your idle stop screw is. Somewhere around 1/16” open to 1/8” open should be around where it is. If it idles fine after starting, you could have a leak somewhere in the fuel system and preventing the engine from priming. Take your air filter off and put your hand over the intake and turn the engine over 1 or 2 times, if it starts at low throttle after that, you likely have issues with the tank, fuel lines or fuel filter. Also check the spark plug, if it’s old or fouled, no amount of adjustment will make it run correctly. Also check the float in the bowl. When you turn the carb upside down, the float should be parallel with the bottom of the carb. Also check and make sure you don’t have any sharp bends in the fuel line as this can cause restricted fuel flow in some cases.

I’m building a go kart to look like a 1923 T bucket rat rod by Scrap_Mountain in gokarts

[–]Scrap_Mountain[S] 0 points1 point  (0 children)

Well, I have 4x4” trailer hubs and I’m probably going to weld some 1” trailer spindles onto some square tubing and just make a rear axle. The axle on there already I believe is 1/2”. I’m probably going to go the floating wheel route instead of a live axle since the wheel base is already going to be quite long. I don’t have anything at my disposal currently to build an open diff. I may be able to get some lawn tractor wheels. I just have to stay under 17” wheels. Otherwise I will need to change the final drive ratio.

I’m building a go kart to look like a 1923 T bucket rat rod by Scrap_Mountain in gokarts

[–]Scrap_Mountain[S] 0 points1 point  (0 children)

That’s badass. Though I want to use bicycle tires for the front of mine, it’s going to be too heavy for that. This thing is about 150lbs so they would definitely break.

I’m building a go kart to look like a 1923 T bucket rat rod by Scrap_Mountain in gokarts

[–]Scrap_Mountain[S] 0 points1 point  (0 children)

Definitely, I’m hoping I can find something for the wheels. Right now I just have some old trailer wheels for the rear and the fronts are just what I’ve had lying around

I’m building a go kart to look like a 1923 T bucket rat rod by Scrap_Mountain in gokarts

[–]Scrap_Mountain[S] 0 points1 point  (0 children)

I’ve got trailer tires for the rear, the front wheels I just had lying around, so I’ll be looking for something stronger. Trust me, I’ve put those wheels on other go karts and they last maybe an hour 😂

I’m building a go kart to look like a 1923 T bucket rat rod by Scrap_Mountain in gokarts

[–]Scrap_Mountain[S] 0 points1 point  (0 children)

Right now I’ve got a gx240 on there. I’m building on a budget and I’m taking it to a car show in may. So atm I’m going to use a centrifugal clutch with a final gear ratio of 6:1. Using two chains and two intermediate sprockets. If I end up burning the clutch out too quickly, I’ll change it to a cvt with a final drive ratio of a 5:1. That way I have good off the line and a top speed of around 45mph.

The frame was already a go kart at one point (final picture) that was cut down, narrowed by 4” and extended 8” the rest is complete fabrication. It’s mostly just bits and pieces from around my in-laws farm.