dohc

Hello, I bought a 1981 cb750c in November. Complete bike, all 4 carbs were together, in a box. Took float bowls off, cleaned everything, replaced a couple jets, all 4 main gaskets and float bowl drain screw o-rings all from Chinese carb rebuild kits that the previous owner had for the bike...

Hi, I have an 81 cb750c with air assisted forks. I just had the forks resealed so I had to take the front end, obviously including the axle, apart. Upon putting it together however, I cant find any torque spec for the front axle with these forks. Every bit of information I have found has been...

Picked up a 1981 CB750C that appears to have sat for a decade or two. Last registered in 1996 with tires from 1989. The goal is to restore it to as original as possible without breaking the bank. First step after getting it home was seeing what's under all that luggage and fiberglass...

I’ve got a 1979 750LTD and I’m looking for the complete right side exhaust HM425, Sankei 2043. Let me know what you have. Thanks

If anyone can guide me to the best kit, tried and true would be appreciated

Hi i have a 1981 CB750F and I can’t get it to run right. The two middle cylinders run cooler than the outers. When at tickover the outers will be at 120degC and the inners around 60. When riding it feels like it running on 3. It starts immediately every time and idles Ok although it doesn’t...

I am working on a 1981 Honda CB 750 K. I plugged all the wiring plugs together in the Headlight bucket. And Turnsignal plugs etc. I have a Blk Female and a Brown female plug left over. And no wires left to plug into these 2 Any suggestions ? Thks Keith.

I have a 1973 CB and I just got some carb work done and when I got it back the left carb is leaking out of the pod. Does this mean I have a flow problem or vacuum problem. I’m running 110-40 jets. Please help! Thanks!

Hi, my first CB750F has been going well, I have it up and running with brakes so decided to put a few miles on it before I strip it down for painting. Ive got a blowing exhaust which doesnt help but can anyone help me diagnosing a rattle I have coming from the left side around the end of the...

Looking for an 80s Honda supersport fuel tank, thanks.

Hi, I have a 1981 cb750c DOHC which has been having ignition issues. I spoke with Murray from Murray's Carbs who recommended an accel kit if I wanted to spend a bit of money so I bought one and received the 14403 kit with 3 ohm coils. On the box however, in bold letters it states (NON-CDI)...

1991 nighthawk 750 with keihin carbs (4). I removed the factory airbox and installed "pods" I had the carbs rejected and it's bogging really bad to point of dying. The main jet is a 120 and the idle jet is 38 Need suggestions so I don't have to go .5 at a time. In addition do I need to change...

Is there a known discrepancy in the service manual(s) for valve spring lengths? The manual lists a specification of 1.60” and a wear limit of 1.57” for the inner spring (un-compressed length). Most of mine were at 1.57” or below so I bought an APE racing valve spring kit from 4into1, only to...

My mechanic says he can't buy parts for a valve job. Or a head. Or a used engine. For a 79 CB750F. Any suggestions please?

Hi all! My mechanic has fitted NGK DR8ES, but I've seen DR8EA being fitted... Does anyone have any info on the correct spark plugs I should be using? Thanks! Dx

i have downloded a pdf of a 1982 honda nighthawk 750 sc manual for the electrical diagram. i cant enlarge the diagram enough to make it out clearly or print it . would someone be willing to send ma a picture of the wiring diagram or have a clear copy i can get from them . i think you can...

Has anyone had prob get the starter clutch gear back on the crankshaft of ac79 cb750 k I had use a 3 bolt puller to remove it

Does the rear of the seat "fairing" bolt to anything or is it just the 2 bolts on the middle side of the seat??? The rear of the seat "fairing" seems to loose. Thanks

Has anybody put a springer on one of their builds? If so what brand did you use? Everybody I contact says their springer will not fit a Honda… Thanks for the help! Rhino

I've been wanting a CB750F for sometime now and one basically fell into my lap when a buddy of mine said he was offered this bike for $300. He is not a Honda guy and knew I had been looking for a 750F for the 'right deal', so offered it to me. This bike was a 'shed find' when the son of the...

I took the carbs off the bike to bench sync them, put them back on and now the bike is starting up at 5,000 rpm + and it won’t go down, choke is off. I was afraid of letting it run cold on such high rev, max time was 30 seconds and it won't go done. When I killed the engine some type of...

Hello, Let me start out by saying electronics are my weak point. With that out of the way. Can anyone explain to me what these two small silver components named mc-5194 nec do? Was also curious if an m-unit would replace these components. Thank you.

is it better to a carb with the fuel pump, or just disregard this plus connect the tank directly to the carb

need new petcock and i have been looking around on Ebay and other sites. can someone recommend best place to get a quality part per your experience. Thanks

Good Afternoom, Please I got a question about CB750 Nighthawnk 1993 motor cylinder, there are four(4) 10 mm small bolts, down location, two (2) in the front and two(2) on the back, one longer tham the other one (Back). Which side goes the longer one (Right or Left) and how long is it (mm) ...

Hi there. I bought a basket case DOHC CB750K from 1979 It died on me in the middle of the road after warming up. (45 minutes into the ride bringing it home) lights flickering and everything. I replaced the regulator and new battery. Bike ran for 45 minutes. Then I turned it off. Then rode for...

Is there even such a thing anymore? Looking for STOCK exhaust for my 79 750F SS. Any leads? Flea bay has a couple listings, but they're really ratty. Does such a thing exist anymore, or are they like Sasquatch, some claim to have seen him, but don't know where he is at the moment.

i apologize as I was not able to find a cb900 forum, i know they were only here in the US for two years but i figured that they must atleast use a very similar design for the carbs to a same year cb 750, i just have two quick questions and they are in the video i posted, again these are not...

Hi, Looking for OEM handle bars for my 81 CB750F . I would consider aftermarket but I don't know what the factory measurements are. Was hoping someone would have that info Thanks

So I have tracked down a ticking/ knocking noise to my primary chain tensioner. I cant seem to locate any New OEM tensioners anywhere. Does anyone have any places worth checking for inventory on this item? Does any one have tips for maybe refurbishing my tensioner if none can be found? Thanks.