Fifth-Scale Engine Break-In and Tuning

[@skycorrigan6511]

These guys are great. I just ordered a 6329 and have asked so many questions and they respond quickly and genuinely every time

[@RCMovers]

Watched this vid over a year ago when bought my first 1/5th scale car and must say this is best break-in vid you can find on the web. Have 3 1/5th scale now and always using this way of break-in and all my engines running great for a long time. just give your car the tlc it needs and have alot of fun :) Thx for the great vid guys both thumbs up

[@jefflohr5533]

6 years later and still one of the best tuning help vids out there! Especially for guys new to the BRAP scene Ssson!!

[@JakeBilling]

That was a really helpful video, thank you for your time and effort putting this together!

[@jasonboyce6050]

Talked to Dan on the phone today, purchased an engine, carb and pipe. Super friendly and willing to help.

[@Lykapodium]

This is the most in depth tutorial on how to tune a 1/5 scale RC engine that exists.

[@markamd1]

I just recieved my 34cc OBR Engine & cannot wait to brake this sucker in today. Best Costumer Service! By Far, best Craftsmanship I have ever seen. These guys mean business! I will defentely be buying more products of OBR. Thank you so much Sean and Dan for all your help and Support! hello from Calgary Alberta, Canada! Luv u guys!!!!

[@oneillbrothersracing]

+Mark Dmitri Thank you Mark and enjoy your new engine!

[@yourface3154]

Alright KZbin, you can delete all the other videos now, finally found one that makes sense! Appreciate the help!

[@markamd1]

+Triston Charge Agreed!!! = )

[@oneillbrothersracing]

+Triston Charge Thanks and glad our video was helpful!

[@stephenfoster4255]

@@oneillbrothersracing I want to buy one of your engines What would be the best one for my tlr 5ive b?? Cheers 👍

[@oneillbrothersracing]

@@stephenfoster4255 Best way to get ahold of us is the contact form on our website and we'd be more then happy to help with an engine. Please be sure to let us know what type of running you'll be doing and if you will be racing.

[@nitrogas5719]

@@oneillbrothersracing would it be ok to not mess with the needle settings and just run the engine at factory, I can’t really tell what a lean engine sounds like and don’t feel comfortable messing with needles

[@JeffreyTabb]

You are a life saver. I just brought my first RC and it wouldn't idle for anything. Followed your instructions and I can finally begin the break in process.

[@ELSMITH3378]

This is by far the best video of 5th scale carb tuning

[@jamesboone14]

I would say this is the best video on youtube on tuning and break in. I've watching this video multiple times while breaking in my redcat mt and xb and learn something new each time. I just recently bought a zenoah g320rc motor and I'm currently breaking it in. The stock hy32cc motors on both my redcats are trash. Killed both of them shortly after break in. Maybe 3 hours of operating time on each and they both lost compression and stopped cranking. ...i'm hoping for better success with the zenoah motors because now I'm about $2000 into this hobby between vehicles, tools, and motors. I'm addicted though so....oh well. Thanks again for the awesome video. Once I learn a little more about OBR motors I hope to upgrade soon. Thumbs up!

[@silverssonyoutube8438]

wow that baja is really fast . great video this will help a lot of people , its been liked and added to my channel list .

[@caznova3054]

Followed the steps in this video, got the Reed Case motor to start on the first pull! Great video, thanks Dan.

[@Ajc606]

Thank you for this. It's clear and straight to the fuckin' point. Other people's vids are dark, you can't see shit and the angles are off. Thank you for helping me understand in English.

[@krazy4baja]

Had to find obr tuning vid again. Very glad its still available. Very good tuning info. Thank you very much obr.

[@SHIZZOTHEPRO]

the best break in video on KZbin

[@Ericdagreat]

This is a true racer with that high flow exhaust can. My favorite exhaust for racing!

[@remphase67]

One of the best intuitive tutorial. Thanks for lending us your knowledge and keep posting them edutainment videos.

[@az954rr]

So much useful information in this one single video! Dan - you are the man! Thank you to you, Sean, and OBR!

[@Niobium23]

This video is still excellent and informative and hugely relevant today! Thank you!

[@GiggityGuy1]

Man I wish I’d have watched this video one day earlier. Ya know, right before I flooded the car and broke my pull starter IN THE FIRST 10 MINUTES IF OWNING IT!!! Great video. Thank you. I’ll use these techniques when the new pull start comes in.

[@rcadventures4342]

Great video 5 years ago when I got my first 1/5 scale buggy, still excellent tips today...

[@markwatson9413]

Thanks for this best tuning video I can find by a long mile 👍

[@jasonhull3891]

Just got my 34cc reed from them and that sumbitch started just like he said it would. It's nice to have ppl like this to lean on when your fairly new to 5th scale. Years in the smaller nitro but 5th scale is a whole different monster. So thank you OBR for what will be an awesome engine

[@keithbutler6361]

Thanks for the great advice, I’m just getting an Fg marder up and running so your video was very helpful, Stay safe and many thanks from the North East of England 🇬🇧

[@bigbadbronx72]

I'm watching this in 2019. Excellent video, simillar to the old nitro break ins in some respects. About to get my first 1/5 scale and this video answered every question I have. Thank you Sean!

[@drewbriggs9168]

Bloody good video buddy... I bought a 5th scale truck and was new to the carb tuning.. I have the 668 carby and this video really helped me to get the basic knowledge of how to perfectly tune the engine for great overall performance & the break in routine... Cheers !

[@javierarzon4853]

Awesome video Dan ....I am a newbie to the baja buggy platforms and in a near future I will be buy you guys a nice motor for my Baja. Awesome information for the Baja buggy, especialy for all of us out there that a are in the Hobie 5th Scale gas for the first time like my self . Cool videos

[@smithaviation]

Awesome video I will be watching this over and over until this stuff is instilled into my head thanks for taking the time to do this

[@craiglake5147]

Great video guide chaps. Just got a 30.5 prostock that I'm going to break in at the weekend. Following your instruction will help a lot & make sure my engine lasts & performs like it should!

[@rabs2020]

I still have the engine i bought from you guys 3 years old now and still running i dont race it just a weekend toy but man and it still runs like beast escape from cage!

[@oneillbrothersracing]

rabs2020 Glad to hear it!

[@starguard4122]

Thank you Sir. This video was VERY helpful. I just wish I had seen this before listening to some of the boneheads in the garage. Most of those guys couldn't pour water out of a bucket if the directions were on the bottom, let alone tune an R/C car. This video will help ALL of us...Thanks!!

[@oldrifter]

Crazy how this decade old vid, still helping new peeps to the scene like me! Just got a Rovan LT and fitted a Zanoah 29cc. Going well so far 😊 Thanks for this. Are you still into rc?

[@ScottPrincePhotography]

This video is exactly what I have been looking for. Yeah, I pull and pull and pull and it never starts. Now I know! I have a fueli 30 cc gas engine and they recommend an 8 hour break in. 4 hours 20:1 & 4 hours 30:1. Seems like a long time. I saw in your video probably about half hour break in . Thanks again Sean.

[@talknuff]

I can start my OBR Reed so easily after watching this video thank you

[@osanshouo1684]

Am feeling those OBR sunglasses, great video, lots of info on carbs.

[@Route_786]

This is a fantastic video very informative, I was making the same mistake by leaning the mixture and ended up siezing 2 of my engines. My hobby shop bloke always said to lean the engine to run it fast. I believe he was wrong. Thanks mate, great job....

[@Phoenixdaniellooh]

omg thank you so much guys lol this is the best tuning video i have seen so far , i just wish i could have seen what colour the spark plug is suppose to be

[@brushless55]

This just gave me a lot of confidence ! thanks for posting

[@oneillbrothersracing]

Glad to hear it, you're welcome!

[@omcasanova]

Awesome helpful vid. Watched it twice. Helped me tune my Baja. Almost there.

[@TRAMJUNCTION7147HG]

Great tutorial on how to break in an engine and tune the carbs. One question that never seems to crop up, is what the gap should be for the spark plug in thousands of an inch. Surely, if the spark plug gap is too wide or to narrow, it will make a difference as to how the engine performs.

[@oneillbrothersracing]

Thank you. Plug gap 0.020 - 0.025"

[@TRAMJUNCTION7147HG]

Thank you Sean. It is just something that never gets mentioned in most videos I have looked at, on breaking in new engines.

[@D-Almighty]

Thank God for youtube videos

[@grizzlys91ify]

Wish I could tune mine like this man I'm haveing a hell of a time

[@rccustom6726]

Great explanation is have to find for this kind of engines tuning, Great video guys....

[@waynerussell4442]

Amazing video thankyou for saving me from many mistakes

[@stevenlumsden8747]

u gave the best imfov on tuneing a carb ive seen thanks

[@krazy4baja]

great vid. so awesome to see a proper vid on the most questions on carbs, engine break in and tuning. Just one question as said below on the heat cycling, do you run the 3 heat cycles during low throttle, 3 heat cycles at half throttle, 3 cycles at full throttle then start tuning or 15 minutes once at low throttle, 15 minutes once at half throttle, 15 minutes once at full throttle then start tuning. Thanks again for the vid. will really help me out.

[@jamesgheffalump3692]

Thanks for the knowledge n what not! from OBR website; This video covers everything you need to know about break-in and tuning your new OBR engine. The Wt-1107 and Wt-1242 were not out when this video was made. Starting settings for a Wt-1107 are 1 1/4 low and 1 3/4 high and Wt-1242 1 turn out on the low and 1 1/2 high.

[@oneillbrothersracing]

We do not run turbo's/superchargers. The sound you're hearing was from the metal gears.

[@georhoan]

is there a stock setting for the idle screw on a 990? I purchased a new full mod 30.5 from your site a few months ago and I'm having issues with getting it running. It has not been broken in yet. I followed your instructions on setting the HSN and LSN, but it still wouldn't start, so I switched out the 990 with a my old 668. Now it's firing, but won't stay on. I had to turn the idle screw all the way in to get it to fire. I plan to put the 990 back on and use a new plug...any suggestions? thanks

[@383_mtb7]

17:50: I didn’t really notice anything that sounded like popping compared to when it was tuned. Could I please get a little more in depth about being too lean? Sorry I just couldn’t see or hear how it was different. Thanks! 👍

[@richardmiddleton7770]

Not sure about the popping either but it will sound empty and tinny and may even bog down when accelerating. Then when it comes back to idle the revs will stay high till it settles (providing the low end is OK but the high is lean), if the low is lean it will bog down or even quit when opening the throttle quickly from idle, it'll also be hard to start.

[@tanhvan1]

Your video help me out a lot, I start from the beginning to get the engine started. I was having difficulty to get it start. I messing with the low needle screw.

[@grammophonecat]

Great Video Guys... will clear alot of things up for many people including myself

[@alltimelow5451]

The best breaking in video! You guys are awesome!

[@p33treekRipAir]

I like this break in process, most videos you see show that you have to run like 8 tanks before it’s broke in

[@kpopRC]

their website has all the rebuild kits. for every ported motor, and every stock motor.

[@craig8159]

Thanks for the breakin info. have done everything and am at the full throttle part. Have noticed that it bogs down at full throttle until it get's going for a while but then it is time to slow down and turn. Am not sure how to get that perfect fine tune.

[@richardmiddleton7770]

Try richening the low end.

[@yourface3154]

Boom. Installed motor, primed, follow instructions. 2nd pull fire this beast. 30.5cc

[@abbevillestr]

Very great and helpful information, this video gave a lot of perspective on everything. I appreciate this! 💯

[@RBAERO]

Nice vídeo! About oil Motul 800 is a better option?

[@jeffpelton3211]

Great information! Everything explained and demonstrated in one video. Thanks!

[@AkaEPIC1]

28:1? Since when do you guys recommend 28:1? Great video guys!! Can't wait for the release of the new engine..!!

[@dennisyoung4631]

28 to 1 - that’s what I plan to run in mine! (Maxima K2) - 43cc, not as “screamy” as these, though. I was thinking, “these turn kart-engine revs, so they want kart-racing mix - 16 to 1 or so.” Was taught with chainsaws, “richen it till it blubbers under load, then lean it out until it *just* stops.” Also, with these engines, you’ll want to adjust the carb *frequently,* as temperature and changing air density (and possibly, phases of the moon) seem to affect mix requirements.

[@K8Nicole]

Yes Sir. It helped a lot. It also confirmed to me that I got it right my first time.

[@DAVE1979SK]

perfect video Dan.i break in all my engines by instruction from you video. and works great. thx.

[@richrubbert]

Great informative video thanks, im near London England, got a Rovan 30.5 you helped, anymore power tips?

[@jamiev4414]

Great video man...new to 1/5 scale and I learned alot!

[@haroldbascom5866]

Dear, Dan, can you do a video on the different sizes of intake manifolds and how they fit (and won't fit) specific 2-stroke, fifth-scale RC engines? In my toolbox, I have a bone-colored intake manifold from the air filter that fits on my Rovan engine but won't fit the engine on my Redcat engine. I searched KZbin but couldn't find any videos on manifolds for our fifth-scale hobby. Please help. By the way, your carburetor tutorial is a major reference for me. It continues to be for years.

[@rev9fan1]

I have also heard people tuning with the wheels up off the ground, with the throttle pegged and they move the needle to listen to the engine and the dance between lean and rich, once they find center, they go just to the rich side of the middle. Is there any validity to that? Or does it have to be under load?

[@shagonator2000]

glad i saw this video, some the stuff i was doing.but didn't know the ys. good job on the vid . you come long ways.thanks for the tips and crab specs.good stuff put in favs.

[@oneillbrothersracing]

Thank you and I'm glad this video was helpful!

[@shagonator2000]

ive been doing rcs sense . 14 years old , and every spring i forget the specs.

[@nightwingfpv]

Thank you for such an in depth video on how to properly break in and tune your gas motors

[@oneillbrothersracing]

You're welcome, I'm glad to hear you found this video helpful.

[@mejia69210]

Great video! Keep up the good work👍

[@clintcamo]

The video I needed, thank you for that, I’ll use this zen 34 & my next engine I’ll order a reed OBR 👍🏻

[@vincentculletto39]

dude awesome information. man. thanks alot. I just got a rovan Baja. and all that information helped out a big way.

[@1993transam1]

Great video, very easy to understand.

[@kpopRC]

yep. if they don't have what your looking for, shoot them an email. they're great guys to deal with!

[@roynelson7613]

Brother I still watch this video every once in awhile wanted to ask a question if you had any good used motors out there you would sell.. I hope all is good in the hood brother I know it's been a minute I need to get caught up South Carolina waving a hand bro 💯 👍🏽👍🏽👍🏽👊🏽👊🏽👊🏽👊🏽

[@ranger6delta]

Man, thank you, iv'e learned a lot from your video, thanks for posting it.

[@oneillbrothersracing]

+Gino Hernandez You're welcome and I'm glad our video was helpful!

[@eedwards74]

I was really surprised the blind guy helped me with my RC cars. A lot of great information but how does he drive the cars ?

[@عليالمعمري-ن8ك]

Mantaser says thanks for your tuneing ❤

[@99ronmarsh]

Great video help me a lot. You didn't cover a 1107 carb does anyone know the defalft settings?

[@JohnMiller-yr6bs]

I just ordered a king motor ksrc 002b Sunday thanks for advice on tuning talk later .When it comes I will text you for help .

[@aarenivar89]

This videos is awsome now i knw why my buggy is running like shit.... I jus hope i didnt ruin the engine but thank you foe this video you guys are the best.....

[@peterbennpan7288]

How many hours use of these bajas with 26cc engine would you say the piston rings need changing

[@DannyDenton1972]

Got a new car and breaking it in at the moment but I've noticed that when its been ticking over for about 10 minutes it starts to cough and splutter !! What do I need to do to sort it out please its a 29cc fuelie and card with a choke ?

[@Wild_Buggy]

Thank you so much for the details! Excellent advice!

[@godsun358]

This vid got my idle perfect but now I get no fuel going to my carburetor. I press the bulb and air is going into the tank causing bubbles. When it should be sucking fuel an I correct? I recently changed the fuel tank and new wt668 carb.

[@ronotardo]

Excellent video!

[@rccustom6726]

Great explanation man, I have a wt 721 1191 carb that i can't get adjusted. Can you tell me what's the adjustment for it please? Thanks...

[@oneillbrothersracing]

1 1/4 low and 1 3/4 high. If it's no responding to tuning I would check for air leaks.

[@johntejeiro5308]

Man your video help me out more than anybody or any video was able to thank you so much can you please tell me what the factory settings should be on a 997 carb? I didn't know if it was the same as the 9 9 0 but I have a 997 on my Baja and I need to set it I would really appreciate it thank you

[@mlunden11]

Hey dan I know you know which carburetor comes on the zenoah g290 thanks dan.

[@AdrenalineAshRC]

Thanks dude this video helped so much 😎🙏🏻😁

[@mikemoultrie8829]

What temperature should my motor run at when it's fully broken in?

[@oneillbrothersracing]

Originally that was the idea. The extra fuel provided by the accelerator pump actually causes a lag on the bottom end though. If you want a responsive bottom end a 668 or 990 is the way to go.

[@richardmiddleton7770]

You can richen the low end to reduce the lag. The problem is the air shoots in, going from idle to full throttle, before the fuel has chance to catch up.

[@EMAXXMASTER]

How is ur suspension so squiahy? Mines loosened all the way it the front doesn't even compress when I drive and the back doesn't sag even the slightest bit when I she it down? My oil worn out or to thin?

[@sanfordcarson3941]

Thanks just got a rovan 1/5 30.5cc buggy has not been started or run but it's for pre-upgrading i'm replacing all plastic with orange anodized aluminum costing a arm and leg $250.00 for the front suspension and about the same for the rear but it's going to be hot and strong

[@clinton219]

What is the bushing on your pull start rope?

[@Alkaline7.62]

Coming from a motorcycle background that thing sounds great there’s nothing worse than hearing one that is not tune correctly that thing sounds so crisp and clean

[@michaelcrimedog655]

reading spark color is an aquired art,practice practice practice,when you see its running laggy checl out the color,when its just right check the color,so on and so,remember to that different things also affect the spark color,if you have a bad plug,a nicked wire it affects the plug spark so affects the color,hope this helps

[@Djmedic45]

i just got a new engine today its a RCMK high performance engine CR300F and the carb i have is a WT-1052 what would the tuning be like???