Dylan, Excellent video and nicely done. One comment. You may want to mention that when synchronizing the carburetors to get the same flow through each one, you should ensure the throttle shafts are not connected together. The throttle shafts should operate independently for this adjustment and then get locked to each other again when competed.....Tony

This is one of the best videos I have seen on any automotive maintenance or repair, and I've seen a lot of 'em. I have a 1963 544 that I am trying to do this exact thing to. Thank you for being thorough, I can't tell you how helpful this video is.

I’ve watched lots of videos on tuning and balancing SU carbs. This is the best by far. Really easy to understand and also being told WHY something happens when you turn a screw or something. Well done!!❤😊

So many videos so much confusion , well until I got here . Thanks so much for taking the time to do this , it's much appreciated.

Excellent video. The best ever on these simple but tricky little English (backwards-Whitworth- carbon-clutch-bearing-lever-shocks) carbs. You can probably tell I'm not a big fan of the way the Brits made their cars, but your video is a 10.

Thanks so much for the video. I am considering switching from a zenith stromberg 150 carb to twin SU H4s. Your video was very help. Are you a Professor? If you are not, you should be. You were clear, easy to understand, logical, and explained everything completely. I have watched many KZfaq instructional videos and your video is clearly one of the best. Before I watched your video, I knew nothing about SU carbs. Now that I watched your video, I feel confident that I could tune them. You helped make my decision easier. I appreciate your time and effort!

Thank you so much for this video. I found it extremely helpful and my 544 is running better than ever!

Thank you for posting this video. I have been tinkering with my SU's for a little while and this really helped me better understand how they work.

Thank you Dylan , we need guys like you , outstanding tuition and not bullshit. Straight to the point.thank you again

Great video with a super clear and helpful explanation of the cleaning and tuning process. Now I'm excited to try this on my MG!

Thank you for posting this Dylan. Big help to a new TR6 owner!

GREAT video!!! Thanks for taking the time and effort to explain so clearly. Can't wait to try it with my '66 Spitfire!

I love you man, i am restoring a datsun 260z and you help me a lot with this video. the carbs were running very rich. thanks a lot!

Great Video. I've been playing with these on my Z's for the last 30 years. The screw in piston damper used in the Hitachi SU clones have two grooves cut in the shaft just above the brass piston. The grooves are low and high marks for the damper oil and can be used just like a dipstick to get the oil level correct. If you have too much oil, you can wipe off the damper and re-insert it a couple of times to get the oil level correct. I haven't looked at a European SU's to verify that the same grooves are there.

Hey Dylan! You and I are neighbors :D Just watched this and you pretty much demystified SU carb adjustments. Thank you much!

Dylan, thanks for a super video. This really helped in removing the mystery out of cleaning and adjusting carbs! Fantastic Job! Please upload more videos. Cheers!

Hey Dylan, I know we've talked a little on the Volvo Amazon group on FB, but I just wanted to say thanks a lot for posting this video. I was a bit scared of tinkering with carbs as I had never done such a thing before but you explained things quite clearly and it was really easy for a novice like me to get my engine ticking over nicely. Thanks a lot man!

Did this tonight - REALLY appreciate your work!!!!

Great video. Very informative. I feel comfortable tackling my SU carbs now!

Working on a TR6 fitted with SUs tomorrow and really looking forward to it now. Great vid man.

Thanks for this. Followed this tutorial to the letter, having just fitted a reconditioned HS4 on my Austin. Worked a treat! :)

I love this video, you are an excellent teacher! I have a 1971 MG Midget SU carbs......thanks, Gary

Awesome video! As a new owner of an MG Midget, this video will help as I thinker my through the needed adjustments. Thanks!!

Excellent video. I have SUs on a 62 TR3B that need this treatment. Very informative. Thanks, Man!

I brought back to life my Datsun. Thank you!

Excellent video... thanks for taking the time to do this. Very informative.

Best video for setting up the SU's. Thank you and hello from Germany :)

Great video. I'm new to su carbs and I'm about to reassemble mine for a '61 triumph tr3. These tips will help tremendously

Thank you Dylan!!! My spitfire loves you !!! Greeting from austria (Europe)

This was a very useful video to translate all the reference material (in writing/books) to how to actually accomplish the adjustments. THANKS !!!

I have a 59 TR3, I've had to fight it EVERY time I wanted to drive it, probably used 8 or 9 cans of ether to get it running, over the last 10 years. Today I followed your instructions and it started right up, ran strong, - one happy car.

Dylan, a really useful and informative post. Many thanks. More videos please!!!

Great Video and very informative I'm new to SU carbs and my 71 240z is going to be happy that I know how to tune it. Thanks for the Vid

Brilliant sir, this is perfectly straightforward regular guy talk.

Awesome helpful video, thanks man! so much better than reading through the manual getting nowhere.

Hey thanks for the great videos, also wanted to note, I used the procedure on an '57 mga (for people searching for mg), so this technique works for basically any SU carburetor equipped car. same goes for the valve adjustment video, thx again

Excellent video and great presentation. Love the tips too. Keep making more videos. All the best 😀

Great step by step instructions with examples. Thanks for making the video.

I have duel HIF-SU's on my '73 MGB and I use 20/50 oil in the dash pots, which works just fine.

Super useful tutorial, Dylan! I had no idea so much power was hiding in the L24 of my 240z, all thanks to your video! Thanks!

Great video, many thanks. SUs explained in a practical and easy to understand way :-)

Thank you for this excellent video. Just the one I need to tune my SU's!

Replacing the single ZS on my Spitfire with dual HS4s. Very helpful video, thank you.

Very clear demonstration all the way through! Thanks!

This was incredibly helpful. Thank you so much.

Great video. Followed these steps for my hs2 carb. Sweet as a nut now. Thank you.

all I have to say is thank you! I just purchased a 260z and needed this info as this is my first carb'd car.

Just one addition here. Instead of ATF, you should use S.A.E. 20 oil for piston damping. Manufacturer says so.

I used 2 things to balance my duel carbs. First a vacuum meter to ballpark things and then a rubber tube to listen to the hiss to fine tune. To test your mixture setting drive 55-60 for a flat mile, kill the engine, pull a plug and see that it's light tan. Where did I learn this? Gene Berg

Dylan, good video but maybe I can set straight a couple of myths. Firstly, the pistons are not damped to prevent "flutter." They don't flutter. Check out a slide type carb on an old BMW or Italian bike. No oil and damper, and no flutter. Secondly, do not run ATF or anything but 20W fork or SAE 20W-50 oil. That oil and damper tamps down the piston upon acceleration and enrichens the mixture. Put in lighter oil and you're running lean on acceleration. Please keep up the great work.

DYLAN MY FIRST CAR WAS A 60 544 NOW I HAVE A 68 122 WAGON GUESS I GOT THE BUG FROM MY FATHER WEVE HAD AT LEAST 15 - 20 122S AND 544S I HAVE A SHOP FULL OF VOLVO PARTS LOVE THE IPD SHIRT THE WAGON HAS A WEBER PROGRESSIVE ON IT NOW BUT I CLEANED A SET OF STROMBERGS UP AND INTEND TO MOUNT THEM REALLLY SOON REALLY ENJOYED VIDEO THANKS LEARNED A FEW THINGS I DIDNT KNOW

Good video I have a 1980 mgb le with su carbs can’t wait to tune them.

Thank you, this was excellent information!

Thanks for the video, have always had some else do my carbs, but no more.

Will use all your tips and tricks on a TR7! Thanks!

Great video simple explanation, thanks for helping us out.

Superb video, honestly , thanks. My TR7 loves you

Excellent video. I just bought a 1964 544 and was worried about setting the carbs. Thanks

Nice job with the video! Very helpful

Thanks for the video it was really helpful, my bowls were full of gunk and lines were clogged. Gave them a real good cleaning, After I installed them back on the car was idling extremely high as if someone were stepping on the gas. and when I would push on gas pedal it was kind of sputter. I noticed some smoking from the exhaust manifold. Any idea why it would be idling that high?

Thanks for the great video. I'm ready to tackle my 1800S now...

Thanks for the tips, i live in Brazil and here we had in the 70' the Dodge Polara and it uses a SU carb, i will buy one, now i will know how to adjust the carburator thanks

Dylan .. good video . No nonsens ✌️Greetings from a Volvo amazon & PV ovener in Sweden . 🇸🇪

Really interesseting to view your videos. My P1800S is going to love this treatment :)

Very good walk through. Thanks!

ATF is too thin for the dashpot oil. It will rev quicker in neutral but in gear under load it will cause a leaner mixture right when you want it richer for more power. Using it will lean the intended mixture during acceleration under load because it will reduce the lag time of the piston rising. The piston will then rise faster which will reduce the amount of vacuum acting on drawing the fuel up the jet. I'm not recommending SU's oil, but I'd suggest using something with the same viscosity. Leanness under acceleration load is usually not a wise practice for engine longevity, let alone best acceleration.

great video... thanks for posting!

Great video, well done. If you think working on 2 SUs is fun, just think what you can do with 3 HD8s SUs like I have on my XKE. Thanks for the tips & suggestions. I run 20wt engine oil in my carbs.

Hi Dylan, i have a reliant robin trike and i have turned up the mixture adjustment as far as it will go on my su carb but its still running rich. Pls advise

Awesome video man!!!!

Excellent video !!!

Great video, i have been terrified of messing with the twin SU's on my rover V8. Im now confident that i can at least take them apart and clean them to see if that helps performance. I have a sticking float on one of them and it over flows could you perhaps do a video of to fix that? Many Thanks

This makes so much sense. Awesome

Hi, thanks for vid, very helpful. I am about to check my Triple Su's on 66 MKx Jag, will it be the same process?

Dylan, Great video maybe you could help me. For some reason my car conked out the other day and now it won't start and I suspect it's fuel ( su carbs) related. I have fuel in the float chambers but not sure if I am getting any in the carb itself, with the air filter removed should I be able to see petrol mist when trying to start? Any help would be good

Hey Dylan, great video. My carbs running very rich, before I can tune, as per your video, my chokes appear both to be stuck. I see the linage, cables, etc. but, looking for advice to free them up. Any advice would be great.

Hello i have a question i have motorcycle with hif38 carb on custom manifold. Mine question is about the vacuum advance port should i block it or keep it unblocked? there is nowhere for it to connect and it vacuums to air.

Thanks Dylan.. nice video but big question.. should i first disconnect the linkage between the two carbs on my TR3 before i adjust the idle screw? (also pls wear gloves for your safety).

Do you think you can show a video how to replace and install a starter? I juat bought a rebuilt ine from your ipd website and i camt take off the lower bolts since the slave cylimder is in the way

Hello Dylon, i have a question, if s u stands for skinners union, what does DAF stand for, thank you in advance

Twin SU's demystified - can it be possible? Excellent video - no BS - just sound tips.

awesome video!!! very detailed!

nicely done, very well explained

great video!!!!

Very nicely explained. Thank you.

Great detailed vid! Wish you could teach everything I want to learn =)

Like it , so next step for me as a Swede in Portugal is to tune in my Carburetors on my P1800 ! But.. it the feathers important so i need to change ?

Awesome video! Thank you!

Exceptional mate , thank you

i use one of those magnetic dishes to keep the parts in it holds those tiny screwws in perfect even if you happen to knock it of the fender as for filling the accelleration bit with the oil , there these oilcans pump thingies used to oil steamengines and other mecanical stuff , they pump luttle squirts and the perfect for filling these up

Great Video 👍🏼

you are my hear thanks a lot for your very good video which helps a lot :-) greetings from Bavaria Germany

Thanks for the video mate 🍺

Appreciate the video mate helped heaps

Great instructions!! I'll try to repair my Daimler SP250 like this))

Great video, thanks!

Thank you so much lol. No one will work on my SU’s so now I feel a lot better about tackling them myself. How do I know if I need a full rebuild, or just a clean and adjustment ?

Why does my car start with carburetors intake covered just with a tiny hole to let air in if the intakes r open it stopsI'm

awesome !!, thank you so much, very well explained !!

Hi, 240z here, will try this monday, looks straight forward enough. i'll let you know