Really nice straight forward bench sync video , we did alot of dynamic synching in college but this video explains things quite simply for those who have little or no mechanical knowledge , very well done sir , keep up the good work

I'm really finding your videos to be an invaluable source of learning! As a new home mechanic I'm in a brave new world. You explain everything so clearly and in a manner that even newbies like myself can understand. You could make a fortune with all this knowledge your sharing Max, and I don't mean as a mechanic :) Many thanks!

Thanks so much for these videos, I happen to be working on my GS 450 L at the moment and now I have the confidence to tackle the carbs. Keep up the good work!!

Thanks for helping to demystify motorcycle maintenance. Your videos are very helpful and I'm relieved to have found them. Keep up the good work!

Nice first step. I use a short length of copper wire (cos it’s soft) adjust down on to it so that it JUST holds, then tip the carbs up and unwind the adjuster letting the wire drop out. Same with the other carb(s). Hi from the uk.

I had a real misfire and exhaust popping after a winter layup without draining the fuel. I needed to strip the carbs and clean the jets. As part of my diagnosis I tweaked the balance by ear and made things worse. So back to basics and try to set a datum balance was the next step. I found this video and did an interpretation using a small drill bit instead of the needle and a small piece of wood to lift the jets enough to measure. They were well out of synch and using this process worked amazingly well. After the rebuild the bike runs better than it has ever done in my 8 years of ownership. I have decided not to put in the garage for a professional balance because I don't expect much of an improvement. So thanks again for this video and I recommend it highly to anyone struggling with the same frustrations. Cheers, Tony

I took my carbs off again and cleaned them. Now it works beter than ever. Thanks for the vids. They help me out a lot. Keep up the good work

As usual, another great vid that is easy for everyone to follow. I think you do a great job of making people understand that they can fix their own bikes and not be intimidated!

Thanks for the awesome videos sir, You do a vary good job. I've done lots of work on my car but I'm starting work on my first bike and your videos have been a life saver.

brilliant video, searched all over to find what screws to mess with and i finally found it. thanks!

Ive never even sat on a bike before. Bought a thundercat and it needed a carb cleaning. You saved me soo much mony and my cat runs way better. Thanks dude! subbed

Right on man, it really is surprising, in my opinion, how something as simple as a carburetor can do something so complex as making a bike go so fast

I was looking for an easy and simple basic set up method for my 4 carbs on a Suzuki GSX 1100 F and here I found it. Thank you very much mrmaxstorey. I will try your set up method this afternoon and I hope it will work. Best regards from germany

Thanks for making this video Max ! So many are afraid of malty carb set ups but I have learned that they are not as bad as I thought Working on my old KZ .

Excellent video. I just needed to know how to get to the starting point after a rebuild and sync. Thank you.

Hello Sir, Thank you for the video. With your instruction and taking my time, I was able to sync my 1993 Yamaha XV Virago750 carburettors. Many thanks. Al

hey man i'm restoring a 1980 yamaha xs1100 and i don't know nothing about motorcycles (i don't even know how to ride one) and your videos have helped me really alot. many thanks from Juarez Mexico.

Muchas gracias por todo lo que me enseñó, señor Max Storey. Gracias

Thanks max. Been looking for this post for a week now. My XV 535 balance is well out, can't start it at all. Now I can reset the carbs back to a 'factory setting' thanks to you. Now to trawl through you other vids. ;-)

Thank you making this video! Help me tons in getting my 88 Hawk GT back on the rode!

This is an amazing video it is exactly what i was looking for because i have a 87 gs450l and you are using just that for your prop. love it keep it up.

Amazing video brother:) thank you for sharing 👍

dude you are the freaking man bro. I knew I screwed up somewhere on my carbs gonna go back and sinc em thanks

cleaned all jets & bench sync'ed floats & butterlflies my 1052 gsxr & it ran great

I get called an "idle knob" quite often by mrs walker. Now I realise what it means :) enjoyed this so thanks.

You'll probably be ok to just put them back on and back together so long as the adjustment linkage was not touched. The thing about bench syncing is it just puts it back to stock, which is fine, but what your bike really needs is for all the individual carbs to be adjusted to their individual cylinders, which have different needs as they wear independently. So go ahead and reassemble do a dynamic sync when you get a chance

thanks for the quick response.I'll pull the carb sometime soon and see what I come up with.

Dude i needed this video! Thanks so much!

Great video, I will use this example to set my VFR400 NC30 back to default. Thanks :)

Superb video. Nicely explained and done as it should. GJ

You are so right ! Mine could be a little better but they are so close I thought I would stop . Before it was a dog but now it burns the rear tire off and at times makes you think you need a change of pants !

thanks man you really helped me a lot

Another great vid Max.many thanks

Great info. Off to watch your other videos now :)

This method gets your carbs back to their baseline setting. its pretty close, but for optimal performance and smoothness, you should do a dynamic sync, using a manometer or the gauges

Hi again and Greetings from India. I love your videos. I know of a better way to sync butterfly valves only on inline carbs with same side and positions. Pull out the idling screw so that the valves sit close completely. Hold the carbs against daylight and see through the intake side and press on the throttle to make sure both valves rise together.

Great video thanks. Trying it tomorrow.

When you cleaned the carbs, did the slides move up and down smoothly? Any modifications to the air intake or exhaust? Have you checked for vacuum leaks?

I was thinking the same thing haha... Thanks bro.. Again good videos

Back in my glory days of working on my Yamaha xj700 maxim I had all the good tools. Motion pro carb sync, yics stick 25$ tool yamaha makes you buy so you can sync em. cheap temporary plastic gas tank to run bike without original tank installed, up sized jets as far as I could go. Being a great motorcyclist begins in the garage. Trial an error method will get your machine back on the road. I even had this special tool that was a spark plug that you could look inside cylinder see what color your fuel/air mix was burning at. 75$ .

Simple. Brilliant. Thank you!

Great video. I do have a question. On my 97 shadow " bobber" it start but won't idle off of the choke and at about 15 mph she falls on her face. I cleaned the carbs( didn't adjust)

Nice and clear. Thanks for this video.

I like this method because I can use an actual tool which has uniform thickness, rather than just "eyeballing" it. It doesnt take any longer and it gets it just a little bit more accurate

Idle adjustment set too low?

Nicely done. Thanks a lot.

Good job man .Thank you

Have you got a video syncing a V-twin. Having trouble with my Suzuki vz800. Need to get it running smooth enough to get to the shop for a dynamic sync.

Hi, I have an inline 4, do I adjust the carb that's controlled by the idle knob first and then set my other carbs to that? or do I synch the two carbs on each side first and then synch the left to the right? thanks

i tried this on my mikuni's from my xj550 and something just wasnt right, every time i adjusted 1 of the carbs it would change the potion of the previous one. none of them ever seemed to be in a relative similar postion.... any suggestions?

Its the same process basically, just the carbs arent parallel so you need to change your point of view to make sure the butterfly valves are in line

great vid!! :-)

nice job, very informative

i cleaned the carbs like this and for the three carbs i could get open they seemed clean but i cleaned them anyway, the bike runs for 40 seconds to a minute then i have to stop at a stop sign and it gives up i can start it once more before i have to walk it back to the house. could it be the one carb i couldnt get open?

Is there no replacement to spending the money to get a sync system? They're usually only used once or twice for us non-mechanics.

so i went with the pinesol method of cleaning my carbs. been soaking now for 3 days and looks great. now i gotta put everything back together and on! i had it synced a few months earlier but am wondering if i should perform this before getting them resynced or should i just get them resynced? i didnt take the carbs off linkages or mess with the adjustment screw so would i still have to get them resynced? im guessing yes. hoping not XD

Hi, just discovered your video. been having a problem synchronizing my carbs. I have an inline 4. the bike runs like crap. when I turn the adjustment screws. the needles on the vacum gauges don't move. I've turn the screws quite a bit and at some point I'll see blue smoke coming out of one of the exhaust pipes, but the gauge needles still doesn't move. would you happen to know the cause of this? also, if I follow your video will I at least be able to bring the carbs back to factory specs? thanks

Just curious if you have a video or advice on how to bench sync mechanical slide carbs?? Mine are Keihin PD50a style and the butterflies only seemed to be controlled by the choke, the slide itself is controlled by the throttle...any help appreciated!

If I ever meet you I'm buying you a beer... Thanks bro

Thanks a lot man..... Really i think this is what i need to do for my Honda CD250U carburetors, I've been having a problem of right cylinder running rich no matter what i do, So this is what needs to be done, need to sync'em and i will let you know how it goes. Tomorrow i am gonna do it. Thanks a lot again :), My bike has the same engine as Honda Rebel 250, difference is it has two carburetors, I manage to get it running but black plug on right cylinder was never fixed :D, :)) so here goes.

hey. hey max you would not happen to know why i have to hold my throttle slightly for my bike to idle would ya???

Hey Max. I have a Honda 79 CB650 and I put pod's on the crabs with open exhaust and wanted your opinion on the jets I should instal in the stock carbs. I watched your videos on cleaning carbs and that was great. my carbs are clean, now I need to rejet. Your input would be appreciated. Thanks man.

Hi, this was very well done! I just did this on my Suzuki gsx 250f and actually ended up adjusting the butterflies with the needle in there. I actually though the mixture screws were the means for adjusting the carbies as I made a home made manometer which was kind of pointless considering that i adjusted the wrong thing. how do you adjust mixture screws on a 4cylinder 2 carby bike? The guide I used to make my manometer is found by typing in youtube: ''suzuki across manometer''

Could you not adjust the idle carb to closed then adjust the synchronized carb to close eliminating the need to put anything in the chamber?

Hey man, i have kawasaki gpz 500, can i use this sync method instead of that manometer one?

Perfect! Thanks mate!

i adjust my butterflies so both completely close off their venturies and then i adjust idle as necessary when the bike is idling.

How close to a "complete" sync does this method get you?

HELPFUL, THANKS!

Well explained thanks

How does your idle have to be?

2 mm feeler gauge ?

Good idea. I'm going to try this until I can afford vac gauges. I have triple Mikuni on my Triumph.

Is the valve supposed to be open like that? It's closed on mine and it opens after "I pull the throttle". I've got issues with cold starts - I always have to wait until the engine gets warm to be able to ride, otherwise it dies or it shoots to exhaust (when its a bit warm). I've cleared the carbs, added a little bit of air-flow as I though there is too much gasoline... so its better but not what it should be. The bike goes like super-pumped at one point and then its just choked. Any help would be appreciated :)

Not often, they are expensive and hard to come by down here. But Id really like to get the opportunity again

Yeah but sometimes the butterfly valves stick when you close them all the way. Besides, you would still have to use the idle knob to open them back up again a little so the bike can idle. If you can get it done your way then go for it, its the same basic principle

You can make one actually out of some long clear tubing, there are writeups how to do it here on youtube, but Ive never done it

Hi man. I have an old Honda and as well a couple of old BMW's; do you some times work on the German bikes? Regards, Alan Alberta, Canada

Thats what I like to hear

Is it difficult to disconnect XS650 carbs (similar to the ones on the video) and rejoin them later?

Awesome glad to hear it

Gracias amigo!

Glad to help!

Are these cv 32 carbs

Hi Max, I'm having problems to start a nonrunning GS400 1979. When doing the complete overhaul of the carbs, I removed the idle knob to get it clean. I forgot to take any references of the initial position of the butterfly. Can you tell me how I should adjust the knob as a starting point? Does this adjustment has a big impact on a nonrunning engine? And last question :) With the spark plug removed and the choke on, am I suppose to feel some fuel on my finger when I rotate the motor with the starter? Thanks for your videos and your help!

Mrmaxstorey i'm stumped. I have a 2002 ninja zx7r that I just cleaned the carbs on watching your videos. Great informational videos btw. The cleaning job was fairly easy and it was my first time. Hardest part was getting the carbs off the bike. Anyways when I pulled the slide needles I noticed they all have #4 washer shims and the e clips are on the 3rd setting. All the main jets say 134 and the 2 outer mixture screws were set at 2 turns out and the two inners were 1 3/4. Stock setting is 1 3/4. When I bench sync the carbs with a needle and start my bike it hangs onto the rev like no tomorrow telling me its lean. So I tried backing in the screw without using the needle and eyeballing it and closed the butterflys a little more and it seems to rev out and not hang as bad. The exhaust sounds terrible though. Instead of that bub bub bub bub its bbbbbbbbb. I took her for a ride and it revved out nicely in first and then bogged in 2nd from 4k-8k making me think its to lean still. Any ideas or suggestions? Thank you for your time and great videos!

You are awesome and everyone thinks so

Good info thanks

Cool glad to help

I'm considering doing a bench sync because I've tried dynamic syncs but for some reason one carb always creates more vacuum then the other. Do you think this will help? My main reason for needing the carbs synced is because when the bike is warmed up it will idle very high sometimes (near 5000 rpm) but given enough time it will fall back down to a more reasonable level before going back up again.

I just got done cleaning my carbs and put them back on and now my bike is very hard to start or wont start at all. When it is running when I use the throttle it back fires realy bad and doesnt want to run rigth. do you have any ideas what I can do to fix everything?

Cool glad to hear it

Right on dude

do the carbs have to be synced, if the carb body is removed as a whole without seperating each carb from one another? im rebuilding my trans on a 99 r1 and would like to take them off before flipping the engine...

I have an 83 v45 magna. the butterflies on my carbs are completely shut. even when I choked it they did not move.I tried opening them by turning the idle screw, nothing, and the other adjustment screw, nothhing again. is there some reason why there shut closed like that?

Hi will this work on a er5 i have uploaded a video or two of the carb/air leak problems

Wish I knew about this method sooner

Dunno man just gotta keep at it

Can I apply that technique on Mikuni Carburetors?

Pero ¿¿Donde le mando el vídeo , youtube no acepta que mande fotos o vídeos.....¿A que correo electronico lo mando???