carburetors

I'm having some issues with throttle cables. When I adjust them with the bars straight they are fine, but if I turn the bars all the way right the cable gets too tight. I've gone thru the adjustment procedure, but still doesn't seem right. I have new OEM Honda cables, but it acted the same...

New to the bike world. Carb cleaning is a giant pain in the ass, especially for someone who's never before touched a carb. I am thinking about getting a set of Murray's Carbs. Any opinions? Should I or shouldn't I? I pretty much have my mind made up already, figured i'd just throw this up here...

does anyone know what the difference is between a VB52A carb and a VB52B carb? they look the same to me. my bike is a jap market 750fz and it should be fitted with VB52B's according to what i have found out but has the VB52A's so what is the difference, cheers

Hello. I just recently purchased a 1971 CB750 and I have a 4 into 1 exhaust with pod filters. I was wondering what would be the most reliable jet setup for me...

Hello everyone, I am new to the forum. I have several bikes. One I bought 18 months ago is a BSA fitted with a CB750K engine. My first question is, what type of petrol should I be running though it. The previous owner, used an octane booster additive. I am running on Shell VPower 99 fuel. I am...

From what I have heard others say about these o rings being hard to locate. I experienced the same on my 1978 cb750k. I have a o ring kit that had the right one, it is a 008 part no. with a inside dia. of 3/16 and outside dia. 5/16 What usually happens is these o rings either fall out of #2...

Please help. I just got a 76 CB750E motor in a Ridged frame w/ springer front in the guy I bought it from clearly stated it runs. but runs like crap if the battery is low. but nothing else is wrong. well I bought it knowing it could possibly be a untrue. just needed something to help me get back...

Hey guys, i recently bought a 1982 cb750k and have been getting it ready for this season. i have been experiencing a few issues that i don't know what could be causing them. the first issue I'm having is that when I'm heating up the bike the idle starts to run away and get up to around 4k rpm if...

hey i am looking for some insight on how to solve a problem on my carbs for my 1980 honda cb750c. One of the prongs to hold my throttle cable broke right off and I cant find a replacement part for this. Not sure if i should try and get it welded back on or if there is a way i can get it...

Could someone kindly recommend best source for quality re-build kits? Thanks

Hi there, does anyone have a source for a detailed parts diagram for the carbs fitted to my 1980 Japanese market Cb750c. They are marked VB52 There are some parts missing from carb 2

79 CB750F. There is a little white plastic (looks like an inline filter) from the vacuum fuel tank cutout switch to the carbs inlet port. It has a directional arrow impressed on it for flow, but it doesn't look like it is doing anything. I blew air through it in both directions. If it is a check...

OK, after getting a grounding issue and buying a decent set of jumper cables, I was able to do the compression test on my newly acquired 79 CB750L. Figured I'd move this over to the engine forum since electrical issues are sorted. After seeing the compression test results, I'm wondering if I...

If AMC49 is out there, per your suggestion, I broke broke carbs apart and went through them again using MacGregor instructions. The carbs are clean and all orifices open. I bypassed the air cuts as recommended. Put all back together. New dr8ea plugs (could not get dr8es). Pilot screw 3 turns out...

Will any of the more experienced folks on here (maybe amc or dirtdigger) provide some advice on whether I should put in the effort to repair, rebuild, and re-jet the stock CV carbs or should I look at a replacement? I'm planning on using pod air filters and either a 4-into-1 (Delkevic) or a...

Hey 👋, So I'd like to start by saying this is my first honda cb750 build. But I'm eager to get her done. I'm looking at either rebuilding or having these carbs rebuilr by someone with alot of experience. I have the rebuild manual but not to sure if I can hang. First post too so go easy lol...

Hi, my 1980 750c does not have an accelerator pump fitted to no. 2 carb and I have read on other threads that the European models did not have them fitted. It is really hard to start from cold and has been since I bought it last year. The choke mechanism is working OK and following previous...

I just got a 1980 750 Custom. A good barn find actually; if has been sitting for the better part of 32 years. This was a really "pig in a poke" gamble for me. When I looked at it, all the parts were still on the bike but no battery or kickstarter to see if the engine was seized. I paid $900...

I'm new to the group and have a 1972 CB 750 project I'm working on. The carburetor slides were stuck and I removed the RIC? (in photo)aftermarket air cleaner on the bike to free up the slides and found the foam element disintegrated with age. Is anyone familiar with this make of air cleaner for...

Rebuilt the carbs, bikes been sittin 4 years, new owner to the bike. can get to idle, 16,1800, rpm. Release clutch, try take off, dies . 1/2 throttle up, is fine. Tried idle adjustment. no resolve. Air, fuel mixture screws. I have tried from 3/4 out to 1.5 out, ive tried 2 turns out also. On...

Hi, I am new to automotive work I am 21 years old and bought a 1980 Honda CB750k it runs and hits top gear. there are a few issues with it, 1.) Gas slowly leaks from carb it drips slowly. 2.) the engine seems to be smoking while running it when it gets hotter and sits still, maybe just the gas...

After disassebling my worn CV carbs I realised that I will never get them running again. So therefore I ordered two VM 34 carbs (China copies) om Ebay. With these I will try to build my own twincarb setup. Has anyone of you done this? I know there are Bolt on kits to buy out there but they are...

my bike is a 1979 cb750fz JDM model it is fitted with VB52A carbs and a 4 into 1 exhaust and standard air box. all the manuals I have looked at don't mention this model of carb. does any body know if these are the correct carbs although I am not looking for originality . the bike was running...

Anyone know anything about the old Posa-Fuel carb

Morning all, recently near completion of my 81 cb750c project. She runs l decent but I think there could either be a richness issue or weak spark issue. When I pull a plug and check spark it's there but weak in my opinion. When I look at the plug its black which leads me to believe it's running...

Hi Guys I bought a 1980 cb750f super sport. Unfortunately carbs are broken- someone used a hammer to take them out and dent them. I found on Craigslist a pretty nice set from custom model (K) and bought them today. Unfortunately I didn’t do research. They look almost the same but not identical...

I've been trying to chase down a problem with my 1978 Hondamatic 750A running very poorly in cold weather, in the 40's or 50's F degrees. It runs great in the summer, but predictably runs terrible when it cools off in the fall. I completely gone through the carbs, with no change in the...

I have a 1981 Honda CB 750 K. I know someone that has Carbs for a 1980 Honda 750 CB He doesn"t know what model they came off of. But did give me the Frame Vin # . Will other model CBs fit my 750 K,.? Tks Keith,.,:)

Anybody have the old 4 into 1 POSA FUEL system on there Cb750. I had one years ago on a chopper i built. I have a set now but need to make sure they are correct size. Size is stamped on carb.. Could be 26 ,28 ,32, 34

Hi all, I've got an 82 CB750 that I picked up over a year ago not running and have been slowly rebuilding and converting to a cafe racer. The project is around 85% complete and have had a few attempts at getting the engine to run properly with not a lot of success. I'll start with a bit of...