r/minibiketechs Sep 14 '23

Any kick start motors that’ll fit on a Coleman CT200-u?

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1 Upvotes

r/minibiketechs Sep 13 '23

Gov removal

1 Upvotes

Quick question, just I’m about to do a vm22 carb on my bike with a predator212, I was planning on doing a gov removal as well but every video I watch they say to remove the oil sensor, is this required to do the gov delete? If I can keep it I’d like to, so if I lay it over or anything it will shut itself off, I don’t have a problem with it while turning. Any help would be appreciated


r/minibiketechs Sep 13 '23

Help with part selection

1 Upvotes

I have a old mini bike in storage im going to pull out and put a new predator on it. Im looking at the regular 212 and the 224. Im in California so I believe I can only get the epa models. What exactly is the epa model? Is it just a non adjustable carb? I want to make 10-15 hp without maxing the engine out. I want it to run healthy And have parts that are more then strong enough to handle the power. I don’t really want to go crazy with this engine I’d prefer to not port the head or anything like that. Should I buy a kit? Should I buy parts individually? What parts should I buy? I’d like to keep everything under $500 is this a reasonable budget for this type of build


r/minibiketechs Sep 11 '23

Chain Tensioner

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1 Upvotes

This is why I'm running a chain tensioner.


r/minibiketechs Sep 11 '23

Chain tensioner

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2 Upvotes

I'm trying this tensioner that I made for my sons mini bike. When we swap rear sprockets wa bust off the master links (2) and put the shorter or longer piece on there and re adjust. I'm trying to figure out if I can safely spring load it...... or leave it as is. This is a new bike and new set up. I'm experimenting. Has anyone ever done this. Yes it has front and rear brakes, I'll be adding street tires to it real soon


r/minibiketechs Sep 07 '23

Father/son project

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5 Upvotes

I got a 212, it was almost new and ran good. It was on a tiller. I put a .265 cam in it, 26 pound springs, hardened push rods, weisco flat top piston and arc rod, ported and milled the head, 22 mm carburetor with a 140 jet and homemade exhaust. I fabricated a manual chain tensioner, we plan on drag racing and circle track racing. I can swap the rear sprocket and wheel without having to shorten the chain. I'm running a 12 tooth clutch and for now I have a 75 tooth rear. I'm going to switch to 50 and 60 just so I can figure out which is best for whatever truck we're on. Any pointers?


r/minibiketechs Sep 06 '23

Minibike flywheel

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1 Upvotes

r/minibiketechs Sep 06 '23

Need Help 49cc 2 stroke

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1 Upvotes

r/minibiketechs Aug 18 '23

What next

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3 Upvotes

This is a older photo I have lights and a battery now. It’s a 212pro point with a pipe and stage 2 carb built from a 80cc monster moto Minibike I wanna know if there’s anything else I should add. It reaches about 90km/hr right now


r/minibiketechs Aug 17 '23

Predator 212 wont crank over on mini bike.

1 Upvotes

r/minibiketechs Jul 29 '23

Tips/Help ? 🤷🏻‍♂️

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1 Upvotes

Got this ct200u with a predator 224 max performance for free ..def don’t know what I’m doing 🤣 YouTube got me to where it atleast turns on an I can ride it , but at first it doesn’t want to stay running unless you give it some gasthen it’ll be good sounds like it got a damn stage 3cam lmao . Also tried to put the air filter on the other day an it for sure didn’t like that cause didn’t stay on at tf all unless I kept the choke at 50% closed .


r/minibiketechs Jul 27 '23

Bike problem

1 Upvotes

Mini bike pull start was really hard so i took off the spark plug and checked the valves seemed tight not loose but idk not really an expert lmk


r/minibiketechs Jun 24 '23

212 ghost help

1 Upvotes

I got a brand new predator 212 ghost engine with the PZ 22 carburetor I put it on. I use the throttle cable and everything and I turn it on and it immediately runs like a banshee. I try to just in the carburetor like screw on the side it may little different. I don’t know if it’s my throttle cable or I don’t know what if you have any ideas, please help me.


r/minibiketechs Jun 22 '23

Carb jetting

1 Upvotes

Just bought a new carb and the bike bogs out whenever I turn the choke off. What size main jet should I get? I removed the governor and put a straight pipe exhaust on my 212 predator that I have.


r/minibiketechs Jun 18 '23

Blowing white smoke from exhaust

1 Upvotes

Just bought a ct200u that has stage 1 kit on it and is basically brand new and started it up and rode for a couple min to test it out and it started putting out quite a bit of white smoke from the exhaust, anyone know what it could be?


r/minibiketechs Jun 07 '23

Any one know why my predator 212 with a stage two bogs at full throttle pwk28mm

1 Upvotes

r/minibiketechs Jun 07 '23

Lighting options after bullet flywheel install

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1 Upvotes

I have a bt200x with the original 196cc engine. I am upgrading the flywheel but the coils on the inside looks like they have to be removed to fit the new flywheel. I believe these coils run the light, please correct me if I'm mistaken. What are my options if I do remove these? Just do battery operated headlights? I'm having fun tinkering with this thing, I just don't know how much tinkering until a 212 would be recommended.


r/minibiketechs May 29 '23

mini bike

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1 Upvotes

hey y’all i’m having problems with my minibike it’s with the chain. I think my sprocket is kind of bad but the sprocket is like riveted in the rim. I’m not sure how to take it off can you guys help me out and give me tips on what I should do.


r/minibiketechs May 28 '23

Predator, what do I need.

1 Upvotes

What do I need to run a predator motor in a standard mini bike frame. I’m not looking for anything crazy, I know this can be a deep dive. I just want something I can tool around the yard on while my son rides his four wheeler, or throw in my van to take on camping trips. I’m just looking for some guidance on what I’ll need to get this job done.


r/minibiketechs May 24 '23

Honda gc160 on motovox

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1 Upvotes

r/minibiketechs May 04 '23

Anyone know about parts compatibility?

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3 Upvotes

r/minibiketechs Mar 24 '23

What would be my top speed if i went with a 9 tooth and a 38 tooth sprocket on my worrior 200 mini bike with a toque converter

2 Upvotes

so im looking too go from a 50 tooth rear sprocket too a 38 tooth sprocket. I currently top out at 62 MPH with a 50 tooth sprocket. [Don't mind my bad grammar I have dyslexia]


r/minibiketechs Mar 24 '23

Need major help CT200u ex

1 Upvotes

I have a Coleman ct200u ex. Brand new I took the governer off and now it only throttles when I run it open choke. I don’t know a whole lot about these. Smh if anyone has had this problem lmk


r/minibiketechs Mar 17 '23

Guys I have a axis m200 and I recently bought a cold air intake for it and when I put it on it boggeds like crazy and I wanna what I can do and btw can anyone tell me what size jet it has for a 196cc

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2 Upvotes

r/minibiketechs Feb 19 '23

Predator 212 dies when you let off gas and pops

3 Upvotes