Common Mini Jeep Problems And How To Fix Them 

Excellent responses to questions today! I will keep you posted once I get it running. I changed the oil, spark plug, charging battery, and great answers to how to get back running as it's been sitting for 3yrs in the storage.

Awesome video didn't know about the bump start that's amazing! Great videos and advice!

Great video - thank you! A few things I can add to this one: The factory setting for the air/fuel mix was way too rich from the factory setting. It would start very easily, but would run way to rich and die after warming up. Once tuned to run properly, it will be harder to start. Also, the idea setting screw is different on mine - it's on the back of the carb, much harder to reach. Apparently there's a proper fuel/air mix screw also on the stock carb, but in CA at least, it's covered over (you have to remove and drill out the cover to use).

Thanks bro! It's been awhile. Good to have you back.

Nice video... have the same exact one...kids love it especially since it looks like a jeep and drives 2

Very helpful video as I prepare to enter the world of mini jeeps!

Very cool. I just purchased a pair of these and see i live in your area, i will have to see you sometime. Maybe a jeep club lol.great video.

Amazing video!!!! Ima look at all this on mine

I have the X-Pro brand mini jeep from Amazon and lately the carb has acted super lean in terms of air to gas mixture. It’ll bog down at full throttle and it seems a bit concerning. We are looking at installing an electric fuel pump to hopefully fix the problem. Any input would be great!

Had to buy new throttle cable have trouble figuring out how to put back together spring came out any suggestion thanks

Can you link your chain tensioner purchase? ... I bought one on Amazon ($13), that looked like yours (Red with yellow roller) but mine has nuts holding the two red bracket halves together, whereas yours looks like the retaining bolts thread into the bracket. When I slip the bracket onto the frame, (same location as yours is), my roller butts up to the outside of the chain rather than over the center of the chain. (I'd need at least an inch longer roller bolt and spacer to align the center of the roller up to the center of the chain). It's 60 degrees today in N.E.Ohio so thought I'd work on the tunnel slap issue. I thought the chain tensioner was a good idea (verses the chain adjustment) because over-tightening the chain could present it's own problems (premature wear of the sprockets and cogs?) The tunnel slap isn't a big issue for me because there are plenty of other "vibrations" going on to mask it! LOL!!

Great Video.. Just ordered one last night for my kids. ( Really for me) GR3 in Blue.. I really like a lot of the accessories on your jeep. Can u do a video on all add-ons and where u ordered and costs. Especially Speedo, LED lights, Tach,.... Thanks again for videos. very entertaining.

What do you use for the plug/gap? Mine keeps fouling. I’ve tried A7TC, CR7HSA.

I have to replace my chain cause it broke, can’t find any specs on size etc, do you know what size and style of chain this requires,?

mini jeep came with a couple hoses that are just hanging out? not attached on one side, is that normal?

How did you install the speedometer? Did you have to wire anything please let me know thx

My neighbor bought a mini keep and the front tires keep locking up. More on the right side…. Any thoughts?

Anyone know to to loosen the hydraulic brakes on these? It seems like the pads are rubbing while I’m driving and it’s slowing my Jeep down!

Just bought a mini jeep, after riding few minutes the gear lever fell off no bolt,having trouble getting in back on,any suggestions

I just bought a GK-6125A and it doesn’t crank like it does crank but it’s not like a constant crank I turn the key 1 or rarely 2 cranks then it cuts off and it sounds dead and idk what to do

Thanks for your video help

Hay Buddy, I just ordered a Coolster Mini Jeep just like yours. No One on RU-vid says what size hole the original speedometer is? I ordered a 52mm/2inch gps mph one . I guess I will find out if it fits the original speedo hole? Your Mini jeep videos have been a great help for me. Do you think maybe doing more helpful videos on mini jeeps in the future?

I'm looking to change out my rear sprocket on my mini jeep. Is there a video for that?

i just put a geniune vm 22 mikuni carb on mine and no joke unless its a very steep hill or sandy hill im doing 7000 rpm and 25 mph or faster sometimes hitting near top speed 35 mph !!! and 8800-9000 rpm O_O but one question I have as im too afraid to nuetral stomp it anyone know what the redline or rev limit of these 125cc engine is with new carb i hit 9900 rpm in second gear climbing a hill and i damn near had a heart attack lol my rule of thumb with old carb going down hill and now with new carb at any time is 7500 rpm is safe as its where the rated horsepower maxes out and im doing a nice cruising 30 mph in 3rd at that rpm

How did i get rid off the speed gobernor on the mini jeep 150cc ,year 2022

I just moved to Illinois from Cali. Debating on picking one of these jeeps up. Do you have yours registered at all? I’m finding mixed info on if there able to be registered for on road use. I intend to use only on side streets to putter over to my dad’s place but don’t want to risk the 5-0 giving me issues, yet see guys on (what I’m used to being) illegal pit bikes and 5-0 doesn’t care

Projects 815, what size is the uni air filter you are using?

I saw on one review that the guys fuel tank was rubbing underneath. The vibrations were causing the metal bar the tank was resting on to dig into the bottom of the tank. Might want to take a peak.

I'm stunned they ship them out without greasing the rear bearings. I just read the manual, no mention of that anywhere, or even the fact the rear bearings exist!

How do you tighten the steering wheel it rattles alot

Hi, my mini Jeep won’t shift down to neutral, the stick shift is very loose, could that be the problem, and how do I tighten it? Thanks!

I like how you can rock start it

Hey brother. I have the same mini jeep. I ran into an issue the other day and was hoping you could help me out! Jeep starts and runs flawlessly until I shift into 2nd gear. As soon as the shifter goes to 2nd the motor dies out like it’s either flooding or starving of fuel.... It’s been a real head scratcher for me and I was curious if you’ve had any similar issues or maybe an idea of how to fix it. Any info would be greatly appreciated! LOVE the channel btw!

My mini jeeps gear indicator isn’t showing neutral what can I do?

Did you fix the streeing? I need advice

Great content my friend, I’ve been meaning to make a similar video, kudos to you for actually doing it 👏

your intro sounds sweet on the speakers I made

We just got one for Christmas and the headlights aren’t working-how on earth are they wired?

Jak mohu opravit hluk kola? zkusil jsem kuřecí tuk z místního trhu, ale nefungoval.

Hi, my mini jeep chain broke off any advise?

Hey unfortunately i dont have instagram but my brake is currently stuck any tips? Update: there was dried mud all over the brake area and i moved it all fixed now :D

Can you send me complete instructions on how to purchase the new tires that you put on your jeep? Thanks in advance

My daughter mini jeep will go in reverse but want move what you think the problem is

@project 815 does your jeep vibrate when riding at high speeds? If so, what did you do to fix it?

Great vids! Can you post a link to the RPM gauge you are using and also the plow. Thanks a ton! I just got mine assembled and love it! Id like to do everything you have since I live in the forest with a long driveway. PS: what size winch did you install. Thanks man!!

Where did you buy the speedometer

Thanks for the video. I want to do the battery upgrade. Is it just a standard motorcycle battery.

im having problems with the stator not on the charging side but the spark any help would be much appreciated thanks for reading

I just built a mossimo mini jeep and it started up but won’t go in gear to move? The shifter isn’t loose and it puts on the back up lights…

Dude my doesnt seem to shift and its barely goes engine is running fine

Can you post a link for the chain tensioner you used. I guess you replaced it I. Place of the current. Second why will my grease gun not fit the nipple on my rear axes bearings. Lastly do the covers on side the wheel cover the lug nut just snap off or are the screws functional. Ty

Is there any way to line the linkage or does the oil line the trans like a wet clutch

Enjoyed this video. Can you give the outside dimensions of this jeep? I want to see if i can fit it in the back of a truck for hauling.

Another great vid. You talked me into getting one and as soon as that tax money comes in I'm getting one. Turns out you dont live far away from me too lol

How do you adjust the throttle cable to get more speed? Mine is locked at 40kmh max speed and the odometer goes up to 80kmh..

I just got a mini jeep. When I gas it and then slow down, then press the gas again it the engine stutters then either i left off of the gas which makes it idles very weak or i press the gas and then turns off. Am I driving it wrong or do I need to adjust the fuel flow value and idle screw

I just purchase one and after riding for about 20 minutes. I started hearing a grinding sound. I follow the noise and hear it coming from my brake pads and rotters. I took the tires off and saw that my rotters are making the noise so I’m assuming it’s just trying to seat in place 🤷🏽‍♂️

Good morning..i bought a 125 jeep after watching your video for my grand son. after about 10 miles of use it started quitting on the trail.it would start up and idle right away only to quit a few 100 feet away . now it refuses to rev up and quits when trying all the time. there is lots of gas coming out the gas line up to the what you described as a pump. everything looks good.. also there is a strange sound while idling.. like a vacuum leak whistle but i can pin point the source of the sound and dont know if it was always there before and just i hadn't noticed it..any advice would be appreciated. Brendon MacDonald

what's up with that bolt they put where the gas pedal is maybe a governor can that be adjusted or something, does the gear indicator show 1,2,3 when not running?

I have the same jeep. It's only a few months old and the master link on the starter chain has popped off four times while cranking. It doesn't damage the chain, just the master link clip pops off. Although the chain was fine, I've replaced it twice along with a new master link and clip installed in the correct direction. I am going to install a chain without a master link and see how that works although it came with a chain with a master link from Coolster. The replacement chains I've used are the exact same length, etc. as the chain that originally came on it. I am a subscriber and saw in another video that you sold your jeep. Since you have a lot of experience with these jeeps, I was just curious if you've ever heard of this issue. Thanks.

Have any leaks from the chain/clutch? We see to have a leak but can't pin point it.

Awesome!!

My Mini 125 seems to be stuck in neutral, no matter what gear I switch it to, it just keeps revving. It was working fun when I was using it, stopped for a few minutes then suddenly started having issues. Not sure what happened? Any advise?

@realprojects815 how do you adjust the shocks on the jeepster camo?

All of a sudden my son was driving around his mini jeep and white smoke is coming out the exhaust along with I see oil on the bottom of the engine dripping on the exhaust pipe coming off the engine. It is oil on the bottom of the fin part on the front part of the engine. Any idea what happened?

Thank You. please show oil level monitoring and change

My coolster keeps diying after awhile when im driving full speed then takes a mini to start back up and smokes when it does turn back over do you have an idea why

I bought mini Jeep an my two front tires are crooked an they wiggle side to side so any idea how to fix this

Your video saved me a lot of grief.

Im going to try that start up routine see if that starts it

Hi, my mini Jeep is not shifting down to neutral. The stick shift is super loose. Could that be the problem? If so, how do I fix it. Thanks!

Hey there! Any idea why the engine turns on but will not ride when put in gear or reverse? Bought this thing a year ago and really haven’t ridden it much!

Do they have oil filters too? Or just have to change the oil only?

never mind if you live in a really cold place like Illinois you keep should come with a cord with pinchers for red and black and just plug it in and connect it to the metal of the battery and leave it over night until you see a red and green light on the connector box while the pinchers are still connected

How do you fix the breaks locking up mine is locking up and starts without holding down the break lol

Hey if my jeep doesn’t do anything when I turn the key. Even when jumping the battery just nothing. I changed the starter and nothing. I’m thinking about changing the battery

how do you turn up the governor i have a mini jeep but i cant find the governor

Ordered the GK-6125A mini jeep with front mounted engine and should receive before Xmas 2022. Thank you for sharing so much information! I feel "armed" enough now to tackle a lot of the mini jeep common problems! If not for you, ... I'd probably not have ordered one. I'm sure my grandson (10) and granddaughter (7) will enjoy riding the mini for years to come (not to mention myself and grandma!) Also the kids may think I'm really smart when the jeep needs worked on! ... but I'll be sure to tell them "Project 815" was my "mentor". By the way, can you tell me what the meaning of Project 815 or how you came up with it?

i just found your videos. I'be been looking into buying one of these but not sure where to start or who to trust. I've seen all kinds of sights that sell them and prices vary drastically. Are there multiple brands? Can you recommend one over the other? I live in N. Georgia so I can't be driving to Il. to purchase one. Thanks!

I read that the motor in these things is a Honda motor knock off. Did you figure out what the real Honda Motor equivalent is? If it'd drop in. Could be upgraded?

How do you know if the pulse pump is working properly?

You going to do a 190 swap?

I have a 125'cc mini utility jeep I bought from princess auto an I only had it for bout 6 months and I tried riding it today an it won't go all it does is start an then when I put it into first gear it will start jerking an have no power and then it will just stall out an sometimes it won't start at all can u please help me I really love this pretty much just got it an I really don't want to get rid of it please please please please reply to me

Just picked up a mini, mine came with the engine in the rear. Had a couple questions but dont use instagram. It would be great if I could get your advice.

Imagine 4x4 mod and a bigger motor 😳

Have you ever had it not start and just click that’s what I’m running into right now. If you have any advice?

My mini jeep surges when idling. Got any suggestions?

My mini jeep is idling too high, I don't see an idle screw adjustment. I just bought it new from TSC. What can I do..

How are these for say a guy 6,3 290? With my son. I see they just came out with a bigger Chinese version of these called pitbull jeep thoughts?

And how do we set the parking brake up so it doesn’t roll?

One noticable item i haven't heard from anyone is the steering on these 125cc mini jeeps. Why is it that i can turn the right in a fair turning radius.However not so when im steering my mini jeep to the left. Im only getting half the turning radius to the right . How can i make this annoying problem go away Its left me embarrased on occasion. Help please would be much greatly appreciated 👍

If the carb has the non serviceable screws i just cut a notch in the screw with a hacksaw so i can use a flathead on it

I have one and my son was driving it and he lost power. Won’t start. No horn. No power. What do I do. I checked the battery and it’s fully charged. Am I missing something? My name is Willie.

Where can I buy transmission for mini jeep. Mine doesn’t run on 2nd gear

I just bought this exact jeep..same color also..but one problem I am having is it keeps turning off...I let it warm up and it just shuts off

Can you put a CD player in and all

Cool

what about the jerry can says not to use

I can’t get mines to start my battery is charged but it seem like it’s not gets any gas help please

Any clutch problems