Tuning A 2-Stroke RC Car │ Ezeetrade Racing

[@Ev0ltion]

I've owned and tuned rc cars for years and i can say its one of the best tuning videos i've ever seen.

[@EZR]

😳Wow! That is a huge compliment. Thank you so much. I really appreciate it.

[@Ev0ltion]

@@EZR I honestly think so. You showed the sound of the engine when its tuned and when not for comparison and showed solution. Only missing part for me was classic fine tuning on top end needle done once you get running and seek top performance.

[@EZR]

I will keep it in mind to perhaps do another fine tuning video. Thanks

[@JasonBrinson-m5c]

You are the only person that can explain 25:1 ratio mix !!!!

[@EZR]

@@JasonBrinson-m5c thank you so much. I try to listen to what you guys need to hear.

[@JasonBrinson-m5c]

You are the only person that can explain 25:1 ratio mix.

[@EZR]

@@JasonBrinson-m5c thank you so much. I try to listen to what you guys need to hear.

[@jamiedoyle679]

Mate your a legend ! Just got my 9 year old HPI Baja 5B running again, with a new plug & fuel and priming bulb, your base setting is gold thank you

[@EZR]

It's my pleasure bud. Hoping to impart lots more

[@samc8272]

Straight to the point. No BS hears what you have and here’s how it should react simple. Awesome job man thank you

[@EZR]

Thank you so much for the support 👑

[@rcmtb1052]

Great video, this is the only video show how to tune right. Thanks for sharing now my rovan Slt is running great.

[@EZR]

It's my pleasure! Thanks for the support 🏆

[@jimmypham2487]

Yay you’re back I missed you!

[@EZR]

Missed you guys too! 😃 Love the comments. Hope to get to more videos this month.

[@harleykortekaas5619]

Great video mate 👍

[@EZR]

Thank You for the support!

[@allanobando8639]

Thanks for you help my truck good tuning now 👍

[@EZR]

It's my pleasure. Hope it gives you many happy hours. Thanks for the support

[@eduardocapaneli1141]

Great vídeo Bro.

[@EZR]

Thanks Eduardo. 🧰

[@nakkie1616]

Great video thanks!

[@EZR]

🏎💨 My Pleasure!

[@meudrone4k369]

Top dicas irmão 🤩👍🏻✌🏼🏎🔥💨

[@EZR]

Thank you for the support! 🏎️🔥💪

[@michaelinzitari]

3:20 is the critical moment in this video to me. Closing both needles proved my Rovan 29 can start no problems. This info was critical to me, as I don’t like to change plugs and carbs for no reason. Furthermore my engine only idles with the LSN at half a turn out. I know that’s crazy for a Walbro carb. You would think it’s too lean. So either it’s note getting enough air or….? Time for a carb tear down and filter clean I think

[@EZR]

Good day there. Thank you so much for watching. I am really glad that this video could help. It does sound like something in your carb needs replacing but not too serious. Luckily these carbs are reliable and easily fixed. Hope it gets you up and running very soon.

[@jukkaovaskainen]

Nice info video 👍

[@EZR]

Thank you Jukka 🏎️🎥

[@Ghost.living1]

Can you make a video on how to seal the head without using the base gasket please bro. I don’t know how much to apply and what pattern I should do!

[@EZR]

Hello there. Thanks for watching. I basically put as little as possible in the crank case side. Like literally just make it wet with the gasket maker. But it will be a good video idea too.

[@addyrcracing9277]

Hey bud my fuel line has bubbles and the car starts but doesnt stay long its stips whwn the throttle released how ever where the gas intake pipe it moves around .

[@EZR]

Howzit So that intake can move but not easily. It should be air tight. If it's a Walbro you can get a replacement. Try this as a start tune: idle screw all the way in High needle 1x turn Low needle ¾ turn Then when it starts open the low needle until the idle is good.

[@addyrcracing9277]

@EZR ok sure let me try then I'll inform u thanks bud

[@charliemaybe]

Can you do a video on tuning the king motor 2 speed trans? I cannot seem to get mine to shift at all. And the button head screw always backs out everytime I use it. I dont really want to put lock tite on it becasue I want to tune the gear shift points

[@EZR]

I bought the new Rovan 2 speed to test but unfortunately we won't be testing the KM one yet. Those screws need a very soft thread lock to keep it in due to vibrations

[@charliemaybe]

@@EZR what thread lock color would be a soft one?

[@EZR]

Ours in SA is Blue by Loctite. Not Red

[@charliemaybe]

@@EZR cool thanks

[@gsxrvr]

I just buy a baja b5 and the carb was bad i put a new carb and follow the video its just amazing the best video for tune carb!! I just have a question they smoke but roll good i dont know if is to rich or my mix gaz tanks you best video!!!

[@EZR]

Good Day. I am so very glad I could help. If the car smokes a lot, it is as you say- check the fuel first. It should be 40ml oil to 1litre fuel. If the fuel is right and it still smokes, then the high end needle is too rich. Close high end 5minute turns at a time until it smokes a little, but if performance changes then go back one turn. Some smoke is good, but not too much smoke.

[@skybugproductions7527]

You did mention the high and needle and how to adjust that and what to listen for

[@EZR]

I do need to do a more detailed video at some point. Hope it helped with some useful info.

[@wdavie27]

Hi I wanted to ask see when you flood the engine have you ever tried removing the carb and pulled the starter to fire it up to clear it, then put the carb back on and started it up

[@EZR]

Hello there. No never. If a 2 stroke gets the right tune you can't flood it in a sense. If you leave the choke on and fill the engine with fuel, you can put the choke off and and keep pulling till it starts. They not as sensitive.

[@tej0skhairkar]

Please make more videos on tuneing

[@EZR]

Will do 🤝

[@rodgreaves1044]

thank you buty my buggy standing long time would not start be cus you show me what to got it in just 2 mins thanks buty your the best have nice day

[@EZR]

Very good news man. I am so glad

[@giopirmisashvili5514]

Thank you ❤

[@EZR]

It's my pleasure. Always glad to help.

[@gsrc6876]

Nice mate

[@EZR]

Thanks man. Appreciate it

[@dgmenace73]

Excellent video! I do have a situation with my 5b baja that I just purchased. It sounds like it is tuned correctly but it basically goes from idling & with the slightest touch to the trigger it sounds & acts like its 3/4 throttle. I'm leaning towards either incorrect linkage setup for throttle & brake or incorrect setting with my radio? Do you have any suggestions? Thanks in advance!

[@EZR]

Hi there. The options you mentioned is definitely possible but it is also possible that the intake manifold is loose and everytime you put pressure on it by applying throttle it opens the gap allowing air in and spikes the rpm.

[@dgmenace73]

@EZR thank you for your fast reply. I had not thought of that, but the loose intake does make total sense. I have the throttle linkage setup to when I give it full throttle with radio, I can still slightly move the throttle with my finger (so the servo isn't under strain). The FlySky GT3C radio, which is not "hacked", I think its setup correctly but not 100% sure. I will check the intake. It's crazy how the buggy will go from sitting idling to what sounds like at least 3/4 throttle....it takes off fish tailing. Lol. Hopefully the intake is loose and can easily be tightened. Thanks for your suggestion.

[@elementalgaming2264]

@EZR I installed a gas kills switch for my car and I had it running then i messed with the low needle screw and idle and now it still wont start but pops once then yanks the pull cord out my hand. I cant figure out how to resolve the issue and to get it running again i would love some pointers. its a 30.5cc with a tuned exhaust.

[@EZR]

First thing I'll check is the coil. Make sure you got the right gap. Then try and give it more fuel by choking it a bit longer. Above said if your needle setting are as per my personal settings. Idle screw all the way in.

[@addyrcshorts]

Hey bud I replaced a new carb but since it's stock setting it should start and good to go right but how ever it sometimes starts and runs sometimes it's stops when I throttle or sometime it won't start at all

[@EZR]

It is a big misconception that they are pre tuned as these carbs are used on many different applications so we must tune it to our specific engines. As mentioned in this video I apply these settings to every single engine that comes through my hands including the engine that I ran on our last video that went 18km non stop.

[@addyrcshorts]

@@EZR oh ok sure I'll tune it bud

[@addyrcshorts]

I did it it started so the car runs but the idle needle is all the way in is it ok to keep the idle needle closed

[@EZR]

No it's to keep the low end rich. These engines loves a rich low end.

[@addyrcshorts]

@@EZR ok then I'll open it but I ran few hope fully it doesn't effect that much.

[@Lotto832]

Hello I tried your way on getting my baja started Thanks But when I am trying to tune from there it blog when I hit throttle and cuts off Which way I go with the needles

[@EZR]

It sounds like it's rich on the top. Close your High End needle 15minutes

[@Lotto832]

@@EZR Thank you for your quick response Keep up the good work

[@trentselectronix837]

so I have a brand new rovan Baja with a 36cc engine, I can get it started but it will only idle for ≈30 seconds and then die, it also dies if I give it any throttle, what's the issue?

[@EZR]

Wierd. Is this on my base settings? One thing I'll check is if the gasket behind the Carb intake manifold is the right way round. Double check fuel lines. But it could be a myriad of things. If you have whatsapp you can send me a message? Check for my number on our website

[@wombatracing]

I can’t get my car to idle, will this work for it? It starts but won’t idle and just dies when I take my finger off the accelerator

[@EZR]

#1 check of your throttle shaft (the copper one going through the carb) is moving around. Like it's loose. That will suck air and the carb body will need replacing. If not then the settings in this video should help. Note that these settings are made for healthy carbs.

[@victoradriansyah]

After the low speed and high speed needle are allset should we turn the idle screw back until it doesnt touch or just put it where it is?

[@EZR]

No. The idle screw stays all the way in all the time. Don't need to touch it again.

[@darenzhobbies9022]

How about the high end niddle? How to tune it ? Cause all i can see in this video is the low end niddle adjustments

[@EZR]

The high-end needle is tuned by ear. My experience is that the top end is to achieve good RPM without bogging. Rather run more than less. Your engine will thank you for it.

[@Maorifpv]

Tune with choke open or close ? And run the car with choke open or close ? Thank you great video

[@EZR]

Choke always open. The max I will choke a Baja is 2x pulls. If it doesn't fire with the choke open after that, then something needs to change. Thank you for the support

[@khalidhrn72]

Can I do the same for my 1/5 scale hsp mxt5 warrior which has a zenoah engine and the carburetor doesn’t have the choke. And I also need to know what’s the cc on this rc or how can I know what zenoah model is exactly equipped on this rc ?

[@EZR]

You can do the same on your model yes. Zenoah normally have a code on the side of the cylinder behind the flywheel. Just Google that code and you'll know which you have.

[@tezy0193]

the stock tune my new zenoah g320 came with was definitely a little lean on the low screw, this engine is so much better / stronger than my old 29cc rovan, my baja does wheelies now xD .. my 29cc lost at least 1 hp after 60~ liters of fuel, i think its the bearings .. sometimes it had full power and on the way back it suddenly felt sluggish for no reason, didn't matter what i changed on the carb it always ran weird :/ im probably rebuilding it at some point to throw in a roller or something

[@EZR]

@@tezy0193 Yeah those G320 engines are the boss. Very reliable. These engines do like the bottom end a bit richer. The 29cc probably needs new ring and bearings then it'll be good to go again

[@bastisalazar9803]

Hi.. my rovan 32cc engine dies after i release my throttle at full even without using brakes. What should i do? TIA

[@EZR]

Hello there. #1 is your Ide screw all the way in? #2 does your throttle copper shaft have any play?

[@larryguest6468]

Hi I installed a brand new 990 carb on a 30cc. Now she won’t start at all it’s like no fuel even getting in to the engine. I have tried everything. Low speed needle 1 1/8th turn and high 1 1/4 turn. What should I do thanks

[@EZR]

I'm running exactly the same at the moment. It's the chokeless one right? When I tune a new one I leave the High end on 1%½ and start the Low end at 1turn. Then i give it 5pulls. It no fire then I open the Low end ¼turn and repeat the process. Once you reach 2turns and no fire, then something else is wrong.

[@larryguest6468]

Thanks for getting back to me. And yes it’s the choke less one. So I took it apart blew 10w 40 through every hole. One of the holes was clogged. Put it all back together put it back on the Engine. And bam she fired up That’s a few carbs now I have bought and there has been issues. Thanks again

[@michaelinzitari]

@@larryguest6468I’m having carb issues. One of my carbs is blocking air. One of my carbs is blocking fuel. Can you describe what you did more “blow 10w40” through every hole” how did you do this? I do have synthetic motor oil for my motorbike but not sure how to blow oil. Air compressor or what?

[@Nitrohead123]

Interesting way of tuning, never heard nor seen someone open idle all the way then go from there.

[@EZR]

With the wide variety of engine sizes and carbs, through the years of servicing hundreds of cars I've found that this gets my customers going 99% of the time.

[@Nitrohead123]

@@EZR very cool bud I wanna try it out soon just different way of doing it which is awesome. There’s always more then one way to skin a cat and you showed that. Keep up the good work

[@addyrcshorts]

I just replace a new engine to my baja 5t and I want to put my carb settings to factory then break in to the new engine, please help

[@EZR]

Just apply my base settings I mention in this video but make sure your High end Needle is at least 1&½ then run the first tank half throttle. Done 👍

[@addyrcshorts]

​@EZR so I don't have to run the car 5 tanks to break in and idle can I keep it same

[@EZR]

No. Definitely not. In the last couple years we have found that it makes no difference. Only needed thing is to seat the ring with good oil like Castor and run a slow 1st tank to make sure the bearings and seals receive good lube without too much heat.

[@addyrcshorts]

@@EZR ok thank you

[@madnessgamingv479]

My baja 5B the tune is perfect low and high speed needle. It’s just when I brake and hold the brake on it wants too cut out after a couple of seconds?Do I need to turn the idle up on the carb just a touch? Or should I adjust the end points for the braking on my transmitter?🙂

[@EZR]

Turn the idle screw in just a bit. Also check that the throttle servo is not putting strain on the carb shaft. It will wear it out very fast.

[@madnessgamingv479]

@@EZR thankyou very much I’ll give that a try once the weather clears up! How do I check that the throttle servo is putting strain on the carb if it is? Sorry for the questions haven’t had a petrol Rc for a long time now so getting back into it.

[@EZR]

Basically when you pull the brake the spring on the brake should stop moving before the spring on the throttle link

[@madnessgamingv479]

@@EZR Ok I will check it, and if it is straining the carb how do I go about fixing it? Thankyou for everything, highly appreciated!!

[@gabemiller9873]

​@@madnessgamingv479 the limits on the controller, turn them in until servo arm moves and the throttle doesn't

[@john-henryyzelle9697]

Hi, I can’t get my baja to start what so ever, I’ve checked the spark plug gives a spark, I’ve even gotten a new walbruro carb, I tried a roto start, its just dead, Took the head off cleaned everything with petrol, piston and sleve still good, put it back together, still nothing.

[@EZR]

Howzit John. It sounds like the sparkplug. I know you checked but I would suggest replacing it. Bogus plugs still spark sometimes.

[@john-henryyzelle9697]

@@EZR Okay thanks I’ll give it a try.

[@claudekim7876]

question. my brand new 290rc ran fine first 2 breakin tanks at stock settings (super rich) but now i cant get it to idle without turning the idle screw in like as much as your "standard 1 full turn out from bottom".. is this normal? for them to change this drastically from first few heat cycles?

[@EZR]

@@claudekim7876 thanks for reaching out. Every car is very diverse. It is normal yes. It if you are running the Rofun 1107 it could mean more so. Those carbs within the same model is very diverse. Question for you: is the big idle screw all the way in? The important part is having a good running car that smokes a little once hot. It will smoke more when cold. This is normal.

[@claudekim7876]

@@EZR its a 990 carb. Yea screw isnt all the way in but it is decently in. Id say 1.5 or 2 turns out. The stock needle setting (1 1/8 L and 1 5/8 H) makes my car run super rich. Tho i think this is the fault of the 2 stroke oil im using. I changed it to amsoil dom yesterday and it smokes far less and seems to idle way higher now.. (even after heating up). Im just confused cuz some ppl say you should back the idle out all the way and then move it till it just starts moving thr butterfly. But then everyone else ive spoke to says to screw it in all the way and back it out 1 or 2 turns to start...

[@EZR]

@@claudekim7876 I have owned and tuned these cars for more than 10years. I am one of five 5th scale automotive technicians in South Africa and 99% of all cars I turn the idle screw in all the way and don't touch it again. Especially the 990 because it needs a very righ low end to start reliably. Trust me on this. Set your idle with the Low End Needle not the ideal screw

[@dannyboy768]

@@claudekim7876 you ever figure out which method works better for you? Also struggling to get my 290rc running right

[@burlingtonfilms]

Are gas rc cars easier to tune than nitro rc cars? I had a nitro and it felt like I had to tune it every time I used it. Eventually I gave up and went electric but I'm interested in gas because I was told they are less work to start and maintain than nitro. Is that true?

[@EZR]

I packed up 9x Nitro cars 6years ago and never touched one again. It is now a swear word in my home. With Gas I play more than I maintain. And maintenance and upgrades are a lot more fun.

[@larryguest6468]

Just a question. I am gonna break in a new engine 32cc. What’s the best temp before I shut it down for a cool down Thanxs

[@EZR]

After years of testing I have come to believe that the 2-stroke engine doe not need break in per say. Just a easy first tank and there after give it hell. Keep the fuel ratio right and tuning a little rich.

[@larryguest6468]

Ok Thanxs

[@deebrown8327]

​@@EZRyea mines still new in plastic haven't had a chance 2 do anything. So run 3 tanks of gas an I should b gd huh

[@EZR]

Just run is nice and easy and make sure it's warm before you pulloff. No need to let it idle for long periods of time. You might need to tune it a bit as it warms up. Most important is ensuring the inner filter is oiled and you have the right fuel/oil mix.

[@larryguest6468]

@@EZR thanx you 👍🏻

[@terryparker6426]

Do you have tips on diff oil? I have an early 32cc 4wd. Same as redcat dune runner

[@EZR]

Howzit Personally I do not use oil at all. I use high heat Bearing Grease. On a 4WD you want to pack the centre diff very full of grease, the rear diff according to your terrain(off road= full/on road= half full) and then front diff only half full.

[@terryparker6426]

@@EZR cheers bud

[@callunsford4938]

Where can I find a set of rims and tires for a rovin B5 Baja

[@EZR]

Good day to you. Where do you live?

[@callunsford4938]

@EZR Missouri

[@EZR]

@callunsford4938 rovanrc.com should have what you need. They have a wide range.

[@pcskeng3607]

What do u mean if the revs climb open the idle screw abit how can you tell if the revs climb

[@EZR]

It's like the car is idling high. If it's not idling high then your should be fine

[@zyphogaming6177]

Hi I tried tuning now it wont move but it revs really really high how can I fix this

[@EZR]

If you motor is idling and running but the car does not go forward there is something wrong the clutch or gears. Will need to take the clutch bell off to check if everything is still in order.

[@zyphogaming6177]

@@EZR but it does go forward just need to rev it so much for it to

[@EZR]

Okay, you will have to take the SpurGear(big one) off and see if everything is spinning freely. Check pinion and main gear. If everything is spinning free then your clutch is engaging too high. Either it's too tight or the spring is a high RPM spring. Send me a email to: [e-mail] Let's chat there

[@joshchatwin8569]

So it's right turn to richen and left turn to lean ? Is that right

[@ll.7927]

So with the base tune of idle screw all the way in n high n low 1.25 out it can been ran like that? Or is that just to get it started?

[@EZR]

It mainly to get it started. Then you need to set the Idle with your low end needle. Once it's driven warm you can tune top end with High Needle.

[@pcskeng3607]

I’m as lost as u r bro probably more with all this ngl I’ve got a rovan myself but I’ve used it a few times but I’m scared to start it up Cus I’m struggling to tell if it’s to lean rich or normal 😂😂

[@Nun3zDanny3]

My idle is crazy high if I don’t back off the idle screw. Whats wrong with my carb?

[@EZR]

Nothings wrong. It's all good. You have to open the Low End Needle till the RPMs are where you want them.

[@Nun3zDanny3]

@@EZR I did that earlier. My new issue is that the thing has no power under load. I can hold the car back with my foot no problem even after swapping the clutch

[@EZR]

Sounds like a Piston/Ring/Sleeve issue. There's no compression, so no Torque

[@Nun3zDanny3]

@@EZR that’s what I was fearing. Would it be best to do a top end and maybe replace the crank bearings? 26cc

[@EZR]

It might just be the ring. Best to strip the engine. Check the ring and bearings. Dont swop the bearings if they not wonky. Worn bearings are nice and loose. It normally takes 5x tanks of fuel to get those bearings loose.

[@elementalgaming2264]

My 2 stroke don’t wanna start recently but does once in a while and I’ve tried everything and I’m thinking the spark plug is on the way out. I don’t have a clue on why. Update I got a NGK spark plug worked perfectly now after the first start i let it run to let the spark plug sit in properly if its even needed. I let the tank run through and the following day it don't want to start again I also checked the flywheel and the ignition coil thing and still got charge on pull while electrocuting myself testing it and unflooded the engine to check but once the spark plug is in it don't wont let me pull start it like there is a shit ton of compression build up. I done everything I could think of like holding the throttle while the spark plug is out and pulling the pull start to unflood the engine if it was did that for 10-15 pulls put it all back together and still don't wanna budge. I'm going to order a new carburettor since it has sat for 4 years and it did run perfectly for the first 2 days and is starting to play up since. I also checked the piston and it look perfectly fine. I'm hope-ing the carb is faulty since its not ran for 4 years and I'm guessing it keeps leaking fuel into the engine. Any advice would be grateful.

[@EZR]

Spark Plug is #1 to change. Then natural wear and tear will have you replacing the piston ring about every 10th tank. Also check for dirty filter or carb diaphragm.

[@elementalgaming2264]

@@EZR Every 10th tank of fuel fuck me. thought the piston ring would last a lot longer :/

[@EZR]

You can push it further with the right oil and mix. Most owners don't even get to 10 tanks. It's a lot of play time.

[@elementalgaming2264]

@@EZR It's a Aowei yama buggy 26cc I'm guessing the piston ring and piston does not matter as long as they're 2 stroke parts ? If so I'm going to order some spare parts. Also any recommendation to where i should buy them would be great :)

[@EZR]

Yeah the 26cc is a 34mm piston and ring. Rovan, King Motor, CY and Zenoah. They'll all fit. Which country you from

[@pcskeng3607]

Hello my spark goes black very quickly and I’m finding that I’m replacing it more than I should could that be because it’s to Rich and if so am I safe to go back to default settings like u showed and opened both high end and low end 1.25 turns out will that be sufficient until I get going

[@EZR]

If the car is already running fine but the plug is dark. You can just close the High end 1/8 of a turn.

[@redsmagic8209]

I have a Rovan 45cc Baja and a WLT.🙃

[@EZR]

🔥That is awesome. Hope they bring plenty Playtime!🏎️💨

[@icyrc]

i picked up a km baja with a rovan engine

[@EZR]

That's cool. If you wanna upgrade it at some point, stick KM Cylinder on the existing Rovan crankcase. Lots more power. Just stick to the same CC

[@rmb1]

The easiest way to tune an RC engine is to remove it from toy and install a brushless system.

[@EZR]

@@rmb1 😂. That'll get you going. Good idea. But I generally like to play longer than 20minutes.

[@TheCd5apple]

This sucks glad I moved to battery rc cars

[@EZR]

Hi there. I think all options have their pros and cons. I just like playing until I had enough, not until a battery dies.

[@Cinnamoroll427]

I hate 2strok engines in Rc . Never ever start esely . Install new carby .if start struggle to run . Rubbish 2strok engine jus wasting money.

[@EZR]

I am so sorry about your experience. It is possible to have a lot of issues with a 2 stroke but once all the problems have been identified, fixed and maintained the engine can run non stop. Wish I was close to give you a hand.

[@Angry-Lynx]

Yeah troubleshooting is very frustrating. But if all is good/proper they start very easily. If not it's means somethings wrong, carb settings, air leak, bad plug are the most common things. Unfortunately a lot can go wrong with engine to not start or run right