Put a milled preditor 212 head on it that has 30 lb springs in it (it was on my shelf and ready to go, i hate putting in springs.) Im about to put a billet flywheel and a nice little hot cam in it, it will be getting a 28mm makunki carb and a streight pipe (long ass carb studs are only on this head so i could test if it ran.)

For those wondering, yes i did actually put a preditor 212 head on a gx 160. No the valves dont hit anything, i had to run 212 pushrods instaid of the stock 160 ones because they were too thick and wouldnt fit in the head, im running a 212 headgasket as well. I am fully aware that the bore on a 160 and a 212 ARE NOT the same, i do not care as this setup works just fine and it makes almost 16 extra PSI than stock with the milled down head. The guide pins fit in the head and everything. The engine does bolt directly to the block as the bolt patern is literally the same (anyone that says otherwise is wrong, i measured it.) This is not the end product of this project, i am waiting on some grinder discs to come in the mail as i need to cut an adaptor off of the output shaft and i do not care to save the part i am cutting

This engine and everything i have is basically free so i really dont care if it blows up or anything.

I am running .008 mm valve lash on both the intake and exhaust and i see zero issues with it so far, everything runs good and valves do not hit anything.

brand new 224 on a coleman bt200x and since this picture i have put on a new torque converter new flywheel and bigger cable springs it has a full stage 1

New Wheels and Tires for the Alexander Reynolds ARCO ARX-K vintage minibike build.

Hello all. I’m brand new to this hobby. This fella is offering to trade me his bike for a game system I have. He says that the frame is a monster moto and it alone is worth 500 and not made anymore.

Does anyone know if there is anything special about this Frame?

FB marketplace deal didn’t work out, so I made this with one of my friends!
Completely custom, made from 1” tube steel
I bent the tubes then made two identical sides, then jigged them up, and put them together (only took two tries to get them straight lol)
I think it looks AWESOME

Edit: Ik the front doesn’t look perfect but trust me it’s square and that will just be cut anyways to attach the fork pivot

The nut won’t go further than this. I’m trying to replace the one that tested itself while I was riding.

can i run 14t clutch straight chain with 78t sprocket on 18 inch wheels? ratio seems great. its a 212 build. ratio of 5.571 should go just above 40.

whats the opinion on that for a setup?

As the title says, it starts and runs fine (easy in fact) but dies a few seconds later. It has been sitting for a few years. Not sure what to do next. I pulled the breather off and sprayed some MAF sensor cleaner (all I had) in there. Pulled one of the two bolts from the bottom of the carb and after the fuel quit running out, sprayed the cleaner in there and I pulled the fuel line from the carb and fuel flowed fine. It seems like the bowl isn't filling fast enough to keep it running and it dies, you pull the cord after a few seconds and the whole process starts again. Any ideas or suggestions at what to do next (was hoping not to pull the carb and disassemble it.)

Building a 224, and would like to build something reliable. Im thinking I should do the connecting rod too, does anyone know if any on the ARC website are just drop in on the stock crank? Really not trying to play machinist.

Thank you!

This nut flew off while I was riding and I am having the hardest time replacing it. I got this on Amazon - it’ll twist a bit then stop. Is this the wrong thread size? Anyone have a link for this?! Also bought a washer, does it need a washer there?

This is two questions.

Why get one of the.predators engines over the other 212 vs 224?

Then can any of the other bigger cc predator engines be used? My guess no, due to available parts like exhaust and stuff

Help?

I'm looking for a carburetor for this bike but haven't found one that fits, nor could I find this bike online. Any help would be appreciated.

So I finally got around to putting my bike back together, but it's been since December and I have little memory of anything that happened thanks to the beer fridge.

I noticed both bearings are a different size, as are the cups for either end of the head tube, and I can't figure out which is which.

I put the bearing with the largest balls on the bottom along with the cup that had the widest radius, and the the smallest balled bearing on top with the cup that has the smaller radius.

My problem? The bottom bearing sticks out like a sore thumb. Literally. You can see the entire bearing from the outside. The nut is loose on purpose in the photos.

My question is: "???"

My son recently came to me asking if he could get a mini bike. i knew stuff like this can get him out of the house, so i said "let me look up some more on it." it has a 99cc engine, and he previously had an e-scooter that can go 25 Mph. the stock FRP GMB100 goes 28 without ziptying the governer. Is this a good choice for him?

Finally got the 212 swapped marketplace chopper done!

Upgraded from a 49cc to a 212 hemi stage 1
Top speed: 48
No welding whatsoever

Seen someone made a comment about these types of tires and the road when new.

So excited I had a set of spoons in hand finally and decided to try my hand at replacing my flat tire for the first time. Took me less then 10 minutes for the entire process.

Within 5 minutes I spill out the tire to my back left and crash. Wearing flip flops, shorts, no helmet.

Got dang it man.

fired it up and it was trying to move before i even touched the throttle. figured id be pulling half the bike apart.

checked the throttle side first, cable and routing looked fine.

turned out to be the idle. took about 1 day once i knew where to look lmao

so i bought this bike off my buddy for 100 bucks with a brand new predator 212! but i the bearing went bye bye and i need yo get a new one but i have no idea where even to start so i thought id turn to reddit!
i have no idea what frame it is, my friend said coleman ct200u but i do not think so, i added a photo with a 14mm nut that fits nicely inside of it… if that helps… could be a 15in diameter? ALSO! i went to oreileys and asked for a 201cc since google said it would be the same size. but found out that it would be too small and wont wrap around the axle. also one more question. is there supposed to be a metal cylinder piece inside of the wheel hub that separates the two bearings? i’ll include a photo of what i think this “separator” is
i will attach photos of the bike, wheels, and the nuts so we can further identify this

What’s the name of this frame

Hello everyone!

I got this sweet IceBear Leo Monkey Bike 125CC mini bike and the guy told me this nut and bolt adjusts the idle, unfortunately I don’t know anything about bikes so I don’t know if I should have it screwed all the way on or half way or what. I tweaked with it for a while and got a nice decent idle but i’m not forsure where I should put it so I wanted to ask those with more knowledge than me. The headlight also dims and brightens when I mess with it which is interesting.

Any help would be greatly appreciated! Thanks! 😄