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Recent content by Jdlong27

  1. J

    Last giveway of the year-Free money for parts-Enter now for your chance to win...

    Count me in. Happy 2016 everyone!
  2. J

    1979 DOHC CB750Kz Cafe Build

    Nah... There's manuals for the carbs
  3. J

    Rear axle nut mm - 1980 f

    Awesome! Thank you so much. Never seen those before. I felt 6 sided socket with a breaker bar may be best for these. Imagine it looks similar to some of the dive videos of the titanic remains at this point. Lol how well do those grip?
  4. J

    Rear axle nut mm - 1980 f

    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...
  5. J

    What is in my gas tank?

    I tried that. I must live in a bad place. Four radiator shops all referred me to a fifth. I called the fifth and he won't touch a tank with a previous liner. Said he's had too many he couldn't get all the way out with his processes and even MEK, which he suggested I try again.
  6. J

    What is in my gas tank?

    No more to come. Lol I messed with this thing for weeks. Pressure washers. MEK, acetone, chains, etc. apparently I had a failed liner in the tank, along with major dents and rust. Went looking for a different tank and ended up with a different bike! Haha. Bought an 80 cb750f frame and two tanks...
  7. J

    AARRGGHH

    �� hate to hear this!
  8. J

    Very low compression - non running

    Thanks flogger! And Thanks for the tip AMC! I'll check those again.
  9. J

    Very low compression - non running

    Another update. Carbs are definitely leaking around fuel rail o rings. New ones on the way. I've run it and done a warm compression test. My numbers: Cyl1 - 110 psi Cyl2 - 130 psi Cyl3 - 130 psi Cyl4 - 130 psi I'm not rounding. No joke. Each was dead on a hash mark. So I realize I'm on the low...
  10. J

    Carb float bowl drain hose replacement

    Thanks!! Appreciate it. And the level thing wasn't for all the time. Someone posted on some forum (don't recall either) that you can attach clear tubing and turn them up to the tank; support them somehow; turn on Petcock and unscrew the drains; this will let you see the level of fuel that...
  11. J

    Carb float bowl drain hose replacement

    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
  12. J

    Very low compression - non running

    Well here's an idea. Does anyone know how much fuel this bike should use at idle? I can't find anything on it. I did find where someone was sync'ing the carbs with a manometer and said the fuel in the float bowls should be enough to sync, but they hooked up an aux tank in case. I drained my aux...
  13. J

    Oil leak from front of 1980 cb750 bobber

    That I couldn't tell you. Sorry. Make sure you check the oil level before you leave though. Best I can tell is that with it removed would be the same as leaving it loose. Which, in turn, would try and tighten the cam chain constantly possibly wearing something in that internal mechanism out...
  14. J

    Oil leak from front of 1980 cb750 bobber

    That "valve" you speak of should have a bolt and nut in it. That is your front cam Chaim tensioner adjustment. Do a search for "adjust can chain dohc" for a video description. Is there anything in the hole? (The top most threaded one at 11 o'clock , not the blanking one straight forward) when...
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