dohc

In converting this bike into a race-replica, I had to reconfigure the electrical harness, build a junction box under the seat, shorten some of the control wires ... and now I am confronted with the fuse box. I have deleted the turn signals, and I have built a new dashboard which includes the...

I have a 1980 CB750C 32,000 miles on the spedo. I Purchased the bike used several years ago and finally got it running last year. The motor runs good. The bike was then parked for several years prior to me purchasing it. The seller did not know the history of the bike since it was driven by a...

Hi All, I'm new here, and have just acquired a 1980 CB 750 Custom. Please could the wealth of knowledge on this site let me know - do the valve gaps need adjusting or are they hydraulic? Thanks.

hello everyone — does anyone know what is the generator output in volts at idle of a CB750F Super Sport ? I was considering purchasing a battery which requires at least 13.1 volts of output from the generator at idle speed thanks for any info you could provide me with

I recently purchased a 1979 Honda 750F that needs a lot of refurbishment. I am wondering if anyone can recommend a reliable parts supplier for the bike. I live in Alberta Canada so ideally parts in Canada would be great but may not be possible. What US suppliers would anyone recommend.

hey guys, my buddy recently got a 1995 cb750 nighthawk and we've been able to start it on starter fluid, I've taken the petcock apart and cleaned it 3 times. it looked like the vacuum lines weren't connected fully and i don't know exactly how to make them right. any help or advice?

Hello all -- I am considering eliminating the keyed ignition switch on my race-replica bike, and substituting with an " on/off " toggle switch. Has anyone done this before ? I would welcome any comments, suggestions, or opinions. Thank you as always !

I've looked at a few magnetic drain plugs to replace my stock drain plug (1982 Supersport). They all seem to be a good bit longer than stock. Anyone know of any limits to how long the plug can be before it gets hit by something spinning around? I don't have a clear idea of what is happening...

Hello all, I am starting a Honda chopper project. I can't find much help on the world wide web unless I'm not looking in the right location. I need help with options of what to do with the frame. I'm not sure if I want to modify the frame or get an already modified one. Any help with web sites...

question -- Do the carbs' drain lines have to be in place during the motorcycle's normal operation ? or ... can I just connect them when/if I need to drain the carbs ? I ask this because I just rebuilt my CB750F SS DOHC ( as a race replica ) with pod filters, and I want to keep the engine as...

Everything electrical is new besides pulse generator and spark units I checked compression and it's good but when I try to start it gives a weird sound and occasional fire ball out of the exhaust pipe I have new carbs ,battery ect.... any advice would be greatly appreciated 🙏

hello all -- having a time trying to install my fuel line ( fuel tank to carbs ) on my freshly rebuilt '79 Super Sport 1 ) the petcock's outlet in in a very tight spot, AND it faces the center of the bike 2 ) so to connect to carbs inlet, it has to perform a tight right-hand turn and then...

Still looking for some OE handlebars for my 81 CB750F, or a aftermarket set as close to the original ones that would have come with the bike. I don't have the factory ones to compare and not sure of the measurement for OE bars Thanks

First time splitting a crankcase. What caused this damage where the bearing sits? Is it repairable or will it be ok to move forward.

Hello folks, new to forums and new to CB's! I am starting to work on this project and have some questions: Looking for an offset front sprocket? What are you doing for a carb support when you remove the air box? Here is what I have going on now: '99 GSXR front end, Cognito Stem conversion...

I've recently purchased a '79 CB750L anniversary bike. I will be picking it up next month. I live in my motor home and I will be loading it on a flat car hauler with my Jeep. I need a couple of dimensions. I need to know the total length of the bike from the front of the front tire to the...

Hoping to get some input on an issue I’m having with my ‘81 CB750k. Running stock airbox with 4into1 exhaust. I believe it has about 20k miles on it. Seems to be missing on cylinder 2. She smokes pretty bad (blue) out of the exhaust on deceleration. Spark plug is fouled. Here’s what I’ve done...

I've been looking for a rear rim (spoke)for my 81 cb750k forever. The chrome is pretty roached along with the spokes. The honda # is 42701-425-771. Apparently, this rim has not been manufactured for quite some time so looking for a replacement part# that is current or if anyone has any ideas...

Hi guys I'm new here, just grabbed a 1980 hbr750 from a friend and he had a cafe racer build set up however I want to make it into a Bobber for a more relaxing ride. I however don't have much to spend, is there any way to not change the frame soo if I wanteed to one day go to a cafe racer build...

Hi Fellow CB people, all new this but does anyone know where I can find 2 x 2043 Hm 425 Left exhaust brackets and 1 right and 1 x 2069 Hm 425A left. As I said I'm new to this so I've probably posted this in wrong section. Any help or advise welcome.

Has anyone swapped an rc42 swing arm onto an 80’s DOHC 750f? How close are the measurements? Can anyone tell me the dimensions of the RC42 swing arm? Or suggest a swing arm that doesn’t require any serious fabrication? Looking to upgrade my rear swing arm with a square frame and retain the...

I am looking for the lower half of the crankcase. Upper half is usable but the lower half has a chunk out of it where it appears the chain has maybe broke and doubled up in front of the sprocket.. I purchased this bike that has been sitting for probably 40 to 45 years in a barn. I have found...

Hello I have a 1980 cb750 that sat for a year. it was leaking gas so i took to a local mc shop. they rebuilt carburetor, charged me $800 and now say that there is a brass rod that they cannot find. (or dont wsnt to be bothered) i know there were carburetor gurus on this site before. any...

Just wanna know what you guys would do......I just cleaned, derusted and seal coated a gas tank. Im putting the bike away for the winter and have not put any fuel in the tank yet. Would you fill the tank with gas for the winter or leave it dry untill I take it out of the shed in the spring...

Hello, I am new to this forum. Currently restoring a 1980 CB750F and wondered if anyone could advise as to the paint type used for the lower front forks - appears to be a matt black? Thanks

Hello, I am new to this forum. Restoring a 1980 750F and wondered if anyone can advise as to the paint type for the lower front forks? It appears to be a type of matt black. Thanks

Hi Everybody, I am trying to figure out want exact size of fuel line I need for my 73 CB 750. Suppliers seem to have 2 or 3 I.D. sizes and I am not sure which one to purchase. Thanks

Does anyone know if a luggage rack for a '78 or earlier will fit on my 79 CB 750LTD bike? The LTD has the older style fender, seat and taillight as opposed to the boattail style on the other '79+ models. I can find luggage racks for the SOHC bikes but can't find one that says it'll fit my '79LTD.

Greetings. First post new member. I was gifted a 79 750K with around 35k km's on it. Its in factory configuration aside from a 4 into 2 exhaust system that is ok at best. The exhaust has no bypass. The bike starts perfectly warm or cold and after a decent warm-up period, runs and drives nicely...

Handlebars, throttle, and throttle cables any help bought motorcycle chopped but wrong Handlebars and throttle