help

Bike: 1993 Honda CB750 Nighthawk Problem: Runs perfectly in neutral and idles fine in gear with the clutch lever fully pulled in. The moment I release the clutch even a fraction of a millimeter in any gear, the engine cuts out instantly. Not a stall, a clean ignition kill, like flipping a...

Howdy, I think either this form is dead or there aren’t enough users on here, anyways I posted a discussion over in garage and im assuming its the wrong spot so I’ll try here, here’s the link if anyone can give me a hand figuring it out it would be much appreciated...

I am rebuilding the top end on my new to me 1975CB750. The exhaust collar on cylinder 4 has some sort of hard rubber on the inside of it. Its just over 1/4” thick and runs through the entire collar/flange. There is no other visable differences in the valves or cylinder head. My question is...

Hello, my name is Teo and this is my first post! My pleasure. I created this post because I found a Honda CB750 for sale, but there are several points about it that do not match and I need help from people with more knowledge to determine what year and variant it is, since I am quite new to...

Hey I just got my first project bike, 82 CB900, and am wondering where i start. Besides cleaning the gas tank im not exactly sure what to do. The engine cranks but and would probably run if i had the gas tank attached. I imagine the carbs need to be cleaned, but I'm mainly trying to figure out...

I bought a go kart set up with a nighthawk engine on it, however every number I seem to look up on it comes back as not being a real engine. The numbers are listed below, any help would be greatly appreciated since I need to get gaskets for it. left side of the engine - serial number...

All major identification plates have been taken off. It says OHC 750 on the top casting and I am yet to find any other identification. Are there any major clues to find what year and model/other information about the exact engine I'm working with? I've also only got the engine, nothing else.