Thanks for the video! I am About to tear my 1981 CB 900 down. Not sure what the complaints in the comments where about. I had no problem understanding anything you said. Must be a geographical thing. For example. I have a hard time understanding certain people from certain areas of Louisiana. 👍🏻😀
@alejandronestorrozzi77883 жыл бұрын
Hi, I see yor carbs hasn t accelerator fuel pump, mine, on a japan version CB 750 Custom Exclusive from 1981 has not that pump on carb #2, too, mine are VB52, and had some problems with main jet ( 102, then installed 75) and very hard to start on cold climate after 2 or 3 days stopped. no air leaks, aircutoff diafragms and all orings replaced. it seems during stop 1 or 2 plugs, get oil deposit, any comments about Jets an cold satarting? txs in advance, Alex
@TheSeestheday3 жыл бұрын
Its been several years since i sold this bike, but are you running factory exhaust with the factory air intake box or are you trying to run pods or a non standard exhaust? First thing I'd advise trying is to go back as close to factory as you can, including for all jets.
@alejandronestorrozzi77883 жыл бұрын
@@TheSeestheday hi, txs for Your comments, Nike si completely factory Specs, nothing changed
@TheSeestheday3 жыл бұрын
@@alejandronestorrozzi7788 I would ask some questions on the cb750.com forum. They should be able to help you.
@colonia59413 жыл бұрын
Thanks for the video, but hard to understand your mumbling, bro ;-)
@justonovak82163 жыл бұрын
Thanks for showing the secret.
@martremcheerfulful4 жыл бұрын
Thank you, great work.
@TheMustafaish4 жыл бұрын
Rebuild time on my cb1100f. Thanks for the upload!
@ianmiscool69694 жыл бұрын
is this tom cruise?
@nine60xray184 жыл бұрын
I’m currently having an issue with these exact carbs. When I press up on the choke cable lever like what you’re doing in this video. They neither open or close. Everything appears to be in the right order. I just got the bike recently and took the carbs off to clean them. I didn’t disassemble them so I did not have to reassemble the springs or anything. It’s weird tho. Randomly when I press the lever up and down they will work and then they won’t work at all when I started putting the rail back on. What could be my issue ? I’ll try and get a video to you soon but everything appears to be exactly like all the pictures i see online.
@TheSeestheday4 жыл бұрын
I sold that bike years ago, but from what I remember, things could be too tight and that would prevent them from opening correctly. I recommend you ask on either the vintage and classic hondas nabble forum or the cb750c.com forum. Some very knowledgeable people there.
@JamesExcell-InterJex4 жыл бұрын
Thank you so much. That helped a ton.
@arthurblackburn9214 жыл бұрын
The non removable slow jet is linked to the valve on the side of carb to keep it from backfiring ?!
@destro5135 жыл бұрын
Awesome video I was taking out the batt boax and rear fender and everything.
@deancrow35255 жыл бұрын
It's easier to get the throttle cables off if you slide the carbs out from the other side.
@Mechanicalcircus5 жыл бұрын
The bolt thingy you turn is the Rotor. It’s the bikes charging system and the thingy hanging down is your stator. When the motor spins, it turns the rotor making contact with little brushes housed inside the stator cover generating AC volts. Your rectifier converts the AC to DC to keep your 12VDC battery charged. Hence the Regulator/Rectifier. Awesome stuff. Checking the valve lash and replacing shims on these are easy peasy compared to other bikes. 👍🏻
@leemarshall95015 жыл бұрын
wtf mumble mumble i can not hear fk all worth listening to
@martremcheerfulful4 жыл бұрын
Not everyone is a great narrator, I think if you listen he has excellent tips
@cvAero6 жыл бұрын
Your information is spot on. I'm going through this on my 1980 CB900C to replace cables .
@justinlee3716 жыл бұрын
Hi, just an off topic question. I just got my first carbureted bike 79 cb750. Where does the fuel line go into from the tank? That gold nipple between 1 and 2 carb? Sorry for the noob question.
@TheSeestheday6 жыл бұрын
Justin Lee yes, the brass nipple.
@Joe-zg7rp6 жыл бұрын
LORDY!
@jeffthomasscott7 жыл бұрын
I have the same bike. Too bad I can't understand a friggin word he is saying.
@jn79647 жыл бұрын
What type of battery did you use and how much did It cost...
@TheSeestheday7 жыл бұрын
Jayron Nelson just a regular motorcycle battery. I don't remember how much it cost.
@rambo2fit8807 жыл бұрын
great vid saved me alot of frustration especially with the tip to tuck the air ducts back into the airbox. tip for everyone else don't just yank the breather tube off that goes into the gearbox on the left side and if you do you should be able to get it back on without tearing off the oil pump cover I learned this the hard way.
@rambo2fit8807 жыл бұрын
I recommend disconnecting it at top of airbox and leaving it attached to avoid the hassle.
@lvl60fred7 жыл бұрын
i like the way you think boy
@tylerchambers93567 жыл бұрын
uh yeah uh maybe you should uhhh stop saying uhhh every GOD DAMN other uhhhh word. Obama soundin ass. I couldnt even make it 30 secs... great vid tho (thumbs up)
@ziorufus73697 жыл бұрын
Usefull . Thanks!
@TIOMACHY7 жыл бұрын
PLEASE MAKE VIDEO AGAIN OR EDIT THIS ONE AND DON'T MUMBLE. PLEASE, IT'S DIFFICULT TO HEAR YOU SAY ANYTHING, AND I KNOW THAT YOU KNOW YOUR STUFF, BUT YOUR EXPLANATIONS AND DIRECTIONS ARE UN-INTELLIGIBLE.
@jakobsinamon16836 жыл бұрын
TIOMACHY open your ears old.man
@anthonyspadaro77317 жыл бұрын
What mods are you running with this jet setup? I have an 82 750c with the stock air box and open 4 to 2 pipes and have been having a rough tme jetting it (previous owner through it way off trying to run pods) Would this jetting work on my setup? Also how many turns out is your a/f screw on the bottom by the bowls?
@kyleconger21095 жыл бұрын
how did you make out with this?
@DonOH127 жыл бұрын
Hey man thanks for the helpful videos! Still have the bike?
@Sunkistsniper7 жыл бұрын
Thanks for the video. It may sound dumb but I thought I would have to drop the engine to replace the seal. Now I'm not so worried and I can stop this dang leak.
@theblade90248 жыл бұрын
Thanks. Very helpful.
@tyrssen18 жыл бұрын
A novel idea, mounting 'em like that -- I hadn't thought of it! Thank you!
@edwardh10038 жыл бұрын
Are you using the stock airbox and exhaust or do you have pods and a four into one/two? I just added a four into one along with pods that have been on the bike for a while and am wondering if the jets you listed in the description are on the same setup I have. My bike is the same year but a CB750c. Thanks.
@bfpeake9338 жыл бұрын
good vid Simon, just too bad you ended it without actually SHOWING the shim coming out, OR explaining the use of the chart for selecting and replacing the proper SIZE shim... but a good vid, need more people doing this (DOHC) motor. ~ps. its not a wise idea to use a magnet on the shims in case they become magnetized and attract metal fragments :(
@matthewzotta75778 жыл бұрын
Hey Simon, great video! I am going through this process on my 1981 CB750 Custom as well. I have seen many people saying that .005 inches is optimum but when I look at the service manual, it suggests .003 in. is optimum with -.001 in and +.002 in. As .005 does fall in the high range, what is the reasoning for going to the high end of this spec? It is causing me probably too much anxiety but I was just wondering if knew the reasoning/advantage to going to .005 in? Thanks!
@andreasn8 жыл бұрын
How did you get the gasket off without taking the motor out? Please answer :)
@andreasn8 жыл бұрын
Sorry, i see youve uploaded a video. Subscribed.
@santiagomoscoso76368 жыл бұрын
tengo una moto cb 750 del 1980 y sólo me funcionan dos pistones el 2 y 3 los toros dos no. las biblias tienen chispa y no funcionan los pistones. será o alguien puede darme un consejo
@zackeryweichert8 жыл бұрын
how do you get the cover out from under the frame?
@TheSeestheday8 жыл бұрын
+Zackery Weichert it slides out. It is always a little awkward an difficult but I does slide out of the stock frame.
@zackeryweichert8 жыл бұрын
+Simon Austin I've never been able to get it out, and my most recent valve cover gasjet has started to seep again. I'm dreading the change.
@caroltenge51475 жыл бұрын
cut frame with a torch......
@TheDatpussy9 жыл бұрын
Would ebay ones work fine?
@TheSeestheday9 жыл бұрын
+McMuffinFluffin How could I possibly know? Random ebay ones could be made of cardboard for all I know.
@TheDatpussy9 жыл бұрын
+Simon Austin lol
@jonfranchi44469 жыл бұрын
Good: helpful video. Bad: Really hard to hear.
@GPski9 жыл бұрын
Hi So then once you put in the carb bank you take the inner air box boots and pull em out #2 first' seat it correctly in the airbox and slide #2 onto the carb opening ? Then repeat for the rest ie: #3 #1 #4 ? thanks
@ralphfoy87789 жыл бұрын
I know you said the other side is the same but can you make a short video showing your shifter setup? I'm I'd like to see it operate and how you did it. thanks.
@charlesk16559 жыл бұрын
I need to remove my (faulty) starter motor on my 1981 cb750 custom. As far as I can tell if I follow your video and pull the carbs I should be able to reach the starter to remove it correct? Thanks for your video
@TheSeestheday9 жыл бұрын
I believe that procedure is outlined in the factory service manual. You should be able to download a pdf of it from one of the cb750 forums.
@charlesk16559 жыл бұрын
Ok. I'll try to do that. Thanks
@trevorwolters40659 жыл бұрын
Let me try this again are u sure that DTC the lobes in the cam are facing away from the plugs My cb900 DTC 1-4 the lobes face towards the plugs timing and everything else is based on that
@trevorwolters40659 жыл бұрын
de I think dead top center ithe lob should be facing the spark plug 1-4 cylinder are u sure cb 900c lobe face towards plugs
@locustltz4009 жыл бұрын
Do you know if its for 1981 cb750c?
@orazioolracid95779 жыл бұрын
whats with the gay low voice?
@marisarce30639 жыл бұрын
my insulators are rock solid and the carbs wont budge. what should I do?
@TheSeestheday9 жыл бұрын
You should order some new ones. Mine were like that at first before I ordered new ones. You likely already have a vacuum leak. To get them off you're going to need more force, and you might need to cut them/weaken them so they'll break instead of your carbs when you pry them off. They will likely break apart in chunks. I had to spend about a half hour cleaning the baked on old ones off of the engine before I could put the new ones on.
@1970mrd9 жыл бұрын
Maris Arce Use a heat gun gently on the intake boots and a smear or oil and the carbs just slide in,
@MrGliderider557 жыл бұрын
I am 62 and have been fooling with these CBs for a long time, what I do when the boots are hard like that, you must know that they inject plasticize in them when they are new to make and keep them soft enough to work with, so silicon contains plasticize in it, take the boots and clean them with pine-sol, dry them and put them in a plastic zip lock bag, (good seal) spray them well with silicon several times and seal them in the bag, its the gases that refresh them enough with the ability to soften them up, the longer you do this process the better they get,