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Can someone help me out with the rear axle castle nut size for a 1980 cb750f? I've looked at the FSM and all I see are torque specs. I've searched for two days on forums and Google. I've seen some references for 26mm and 27mm for varying years/models. I took my untrustworthy HF calipers to it...

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! I had to replace a missing -901 (dash 901) on my 80 cb750c carbs. To get one I bought a 100. Lol. So, if anyone needs a few, send me your address and I'll drop some in an envelope. It's not much, but I've been helped here and thought I'd try to help someone else. Specs: -901 Buna N...

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...

The generic question: should I A) drag this bike to the road and hope someone hauls it off B) look into an engine rebuild at this point and if so go ahead and put 900 top end on C) check and fix the valve shims and get it running to test again The backstory: 1980 cb750c that turned over...

I have a 1980 cb750c that the front caliper locked up on the po, so they just removed it from the rotor and ziptied it to the top of the fork. Lol. I have pulled the caliper apart and I am rebuilding it. But, the two mounting bolts that hold it to the fork are missing. Can someone point me in...

Hi everyone! Enjoyed reading all the information here and finally registered. I've purchased an 80 cb750c as my first "owned" bike and look forward to riding soon. I've searched and cannot find some info on the tank. The cap has been drilled out (no key) and when I de-rust the tank I'm going...