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gotta get a new headlight switch at some point, count me in

Clutch was slipping yadda yadda, i bought new plates all 14(?) of them, excluding the double plate for my '78. While i'm inspecting the old friction plates i notice that the material is nearly gone on some of the friction plates. I had also noticed the oil light coming on while the motor is...

Alright, I bought this bike last year, it's a '78 cb750k. The previous owner was planning on having it be a cafe racer style bike. He was almost done, but encountered an "electrical problem" he told me. It did not run when I bought it. I spent that summer and winter tinkering, fixing, cleaning...

yes.

20 days later, sorry if this seems silly. I did run new fluid through the system until it was clean coming out. I bled from the top as well and no bubbles or foam indicating air up there. Somehow I think the plunger or piston or something in the master cylinder is causing it to not actuate the...

Something else i feel might be important is that I hear about people’s brake lever being able to be pulled all the way to the bar, mine stops about a centimeter short and is not able to be pulled further.

obligatory 1978 cb750k I got this bike about a year ago and finally got it up and running this spring. I’ve been riding it around town and to work and such, no apparent problems with the brakes. About a week ago I found out the brakes weren’t in tip top shape when I needed to stop very...

I’m sure i need something these days

Happy Holidays all! And to a good year ahead!

A month later, and I’ve replaced the carb holders to help with a potential vacuum leak. I didn’t check for one, but the old ones were rock hard. I started her up tonight and she was fine with the choke on, still idling high at 2k so the mains would be feeding fuel. Choke off though, and was...

Hey all, at this point I'm a regular on this site and am learning as I go. Right now, I'm experiencing an issue with my 78 model that so many have had and will have. A rough idle. Only difference is mine doesn't die on me! She sounds more like a harley than any of these bikes should while...

I’m sure this situation has rarely ever happened on this forum, but I’ve got the oil drained entirely in this moment. Would it be a bad idea to remove the clutch assembly and spray the plates and disks with brake cleaner to try and get that old oil out? Or should I just fill her up and hope for...

Well that's no good. That's like all there is in it is generic car oil. Can I just change the oil to a motorcycle oil and be on my merry way, or is the clutch system now in dire need of replacement?

As a side note, the reason I need a new clutch is because it's slipping. Though, after a little bit more research, I wonder if it has anything to do with the oil I'm using right now either.

RIGHT! So I initially thought that the engine on my bike wasn't original to the bike because the code on the engine was different to the number on the frame. It turns out, and what you probably already knew, was that they wouldn't match anyway?! The number stamped reads CB750E-3018948 which...

I understand that these bikes are pushing 50 years these days but surely there’s still a way to get new clutches (plates and springs) for them right? I’ve done some digging online and found only one place that seems to sell it as a kit. After a little more digging on some more common sites...

Always in need!!

This post is really asking two questions. Is there a way/What’s the best way to tune the carbs without those pressure gauge setups that I see on youtube? Also, my bike used to run fine-ish, but lately it had been choking itself out. It would run fine for a spell, then stop revving past 3/4k and...

always in need!

Hi! I did install the new unit and it seems to have mostly fixed my problem. In your case it could entirely fix it as long as you're certain the alternator itself isn't faulty. If you can, do the proper tests on the stator and field coils and check for correct resistance. They are in the manual...

Never too late!

I’m really hoping some sees this and gives me some comfort. The new parts arrived and I wanted to test the wiring harness a little bit to make sure there wouldn’t be any shorts. I ended up finding continuity from the field coil wire (white) through the hot/12v wire (black). It read 12 ohms, and...

I've gone ahead and ordered a new regulator/rectifier unit. I "tested" the old one the only way I know how: check for continuity where I believe there should be continuity according to some wiring diagrams. I found none. So, if it were never going to charge, I suspect this is the culprit.

I should add that while it's running, the battery doesn't read any higher. Not at idle, and not at 4k.

To start, I'll say I don't have the "proper tools" the manual wants you to have to test the alternator, the best I've got is a multi-meter that reads AC, DC, and resistance. I've gone through and checked what I can on the alternator itself: the resistance. the field coil reads about 7 ohms, and...

Very cool

When I pull up on the choke, the butterflies close and it idles higher. Push the choke down, the butterflies open, and it idles lower. This makes no sense to me. As a side note, the bike already idles too high (4500-5000) so I know the carbs need tuned bad. I’m just confused as to how...

I finally got my 78 to start after changing the oil and cleaning the carbs (and properly hooking up the fuel line, I put it on the wrong inlet(?) on the carb). Only thing is it idles too high, like 4500-5000 RPM high. The rubber boots from the carbs to the engine are pretty cracked and I...

I just bought a 78 that doesn’t run. All the electric stuff up front has been pulled off and disconnected. There’s no cover for the battery box. So in the spirit of trying to see what’s wrong, I slapped in a new battery, plug in (where I hope to be) the fuel line to the carbs, and using that old...