carburetors

I would like to put pods on my bike. I currently have stock main jets on the carbs (115) what size main jet should I get? I also have (38) slow jet size. And, should I get a shim for the slide needle? If yes, than what size shim? Thanks.

Can someone tell me what hose to get for the bowl drains? I don't know which ones will be fuel/heat safe. I've seen one post talking about windshield washer hose and another saying to use clear to check levels easy. Any input appreciated. Thanks in advance! Vb42a - 1980 cb750c

Hi, Has anyone got a complets airbox set-up for my 78' 750k. Mine came with pod filters on it and I am just about to rebuild them, I have heard many horror stories about trying to get these carbs to run with pods.

I just recently started working on a 1976 CB750F and in the process of cleaning the carbs I found a large amount of difficulty in removing the float bowl. After about an hours worth of work I got all four float bowls off and found myself looking at some of the dirtiest carbs I've worked on so...

I'm naively trying to create a post that will be part resource for those needing to properly jet the K4 or relative for 4-into-1 and/or stacks. Before my head is ripped off, I'm not pushing for pods although success stories (no dead-zones, tuning nightmares, etc.) with pods + 4-1 are welcome...

I need a bit of advice. I have a 78 cb750f (supersport). I recently rebuilt my carbs, and now the bike won't idle. I'm not sure where to look first. I have the air mixture screws backed out 1.5 turns. The idle screw adjustment stop doesn't seem to do anything. Thoughts?

Hey guys! I recently picked up a non-running 1982 CB750c that was someone's cafe project. The wiring job on the bike was garbage so I completely stripped it and got everything reran using the typical minimal wiring diagrams. I replaced the plugs, and last night the bike would fire up at full...

I have a few questions: Info, Carburetors are from a 1982 Honda CB750C (I think) 1. I want to do a complete rebuild on my carburetors, but after disassembly and further inspection im not to sure if these are the original carburetors from this bike. Ive looked at a number for different rebuild...

Hi there I have recently bought a US import CB750 custom in the UK, it's a non runner although it turns over. I want to do a complete carb rebuild before I attempt to fire her up, will any carb kit for a DOHC CB750 work or am I looking for a specific part number? I'm not sure they sold the 750c...

Planning a rebuild soon and i know that in one of the carbs, the sleeve tab is gone. I assume someone either did not match the slider groove with the tab or tried to spin the slider while inside the carb and the tab got broken off. Can this potentially cause a problem? I think highly unlikely...

Hey guys I have a '72 750 k2, I love it. Last year at the end of summer I noticed if i let the bike sit after riding, I would come out to a puddle of gas underneath her. I can't find a leak anywhere. I can ride all day and nothing... until She sits all night. The #4 carb is pretty corroded, I'm...

Just as the title says. At first I thought it was all rust. Seeing as I had gas seeping out the bottom of both bottom "lips" from what turned out to be pinholes when I stripped it to metal. So, I let the tank soak in Metal Rescue a few days rotating as I went. The MR came out looking okay with a...

I have searched the internet to find a nice diagram of where the adjustment screws are on these carbs and I haven't found anything great. Also, I was born in '85 and while I like carbureted engines, carbs are just before my time and no one has really shown me how to adjust them properly. My '79...

I can't get these carbs to stop leaking. Before you write about cleaning, and adjusting, and measuring, I've done 'em all. Twice. Wet test, aftermarket floats with bendable tabs, and different float needles(stoppers), (original floats were not adjustable and they were causing leakage then)...

'82 CB750F here. I took apart my carbs and totally forgot which cable goes where... there's 3 and I have an idea but don't want to screw the process up. No pictures atm, but can anybody point me somewhere to a manual or an alternate guide? I've skimmed the forums a bit and looked through the...

After soaking my carbs in cleaner and rinsing them off, I noticed the felt washer came out of the butterfly linkage. Now what do I do? Will the missing washer cause an air leak? According to the carb cleaning manual I downloaded off this site, you can't buy them, you must make them. is this true?

Has anybody tried cleaning their carbs by boiling them in lemon juice? I thought I would try it, hoping that it wouldn't dull the finish like traditional carb dip does. Well, they come out looking the same, plus some of the grease and grim build up on the exterior of the bodies was still there...

Hey guys so my 79 has a real tiny gas leak. Pretty sure it's from one of the carbs, but not 100%. Any tips as to where it is and how to fix it? Also, recently, my bike has had some smoke coming from around where the exhaust meets the engine. Does that happen when there isn't enough lubrication...

hey everyone. i took apart my carbs to clean and learn at the same time. this is a 1982 hondcb750F im a complete newbie. im having trouble putting the carbs back together. i dont know what these parts are called exactly (circled in the picture), but it looks like the pully that synchronizes...

Hi new here and hello to all ok right ive just stripped my carbs to clean the jets etc now putting back together and there is 2 brass main jets that look alike one is a number 68 and the other is a 100 now I didn't take note of which came out of which hole, one of the holes has another brass...

hey everyone, new member here. just wondering how common it is to have holes in floats? bought a 1980 cb750k and im getting around to rebuilding the carburetors and found that all four floats have pin holes in them. I suppose i could have screwed them up by throwing them into hot water. I have a...

Hello fellow Cb owners. I'm having issues. This thing sat for 5+ years before i rescued her in a pasture uncovered with just a rag in the exhaust and tape over the carbs intake. Well I tore her apart and angels sang to me cause no rusted Pistons, rings, crank, bearings were all good. Bought new...

Hello there, new to forum but frequent visitor. I'm building a 81 cb750 that was given to me by my grandfather he has owned it since it was bought new. The bike came with a dohc motor and has its flaws. For the short time I'm looking to drop an 78 sohc into the frame and work on the dohc motor...

Hi, I have a twin cam 750 that is stock a part from a 4 into 1 exhaust. It won't rev past 6500 while riding and it seems to be rich. It revs in neutral. I have rebuilt the crabs and noticed it has 68 primary and only 75 secondary mains tried 95 and it was worse. Can anyone help

Looking for a source of supply for the screw/needle that seals the bottom of the float bowl. Found end rotted off..

I have a 1977 CB750 that I just finished converting into a cafe bike. I took it to a shop to have the carb work done. For the first few weeks I had zero issues. Now when the bike is fully warmed up, the idle is around 3000 rpm. When it's cold, choke on, the idle is around 1400. It's only when...

hi, i am in desperate need of help, i have been rebuilding a 1979 cb 750 kz for a while now and have run into a bit of a hurdle, i am going to be running pods and was going to go for a carb swap with a set of gixxer carbs but thought i would try running with the standard CV's and 110/75 jetting...

Looked like good carb from the outside.

Hi, Brand new to this site. Just out searching for link to manual so I can do a Honda CB750C carb overhaul. T

I'm build a small motor maybe 836 at the biggest with a K head cleaned up, small cam. I have round top and 1978 carbs. Just looking at the pros & cons?