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  1. B

    Cylinder 3 not firing

    Your compression test would be impacted by bad valve shims. It would read poorly. Have you seen the spark plug fire?
  2. B

    Will a fuel pump help with my fuel flow issues?

    I've had inline fuel filter problems before. Some filters do a good job of allowing air back to the tank, some don't. And more importantly, filters are rated by microns. If you buy a 10 micron filter, you might have a similar issue. the one i use today has a bronze filtering medium in a...
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    Poor spark

    I don't know the answer to this question, so i have to ask. Will a hotter plug require more voltage fed to it to generate spark? It would make sense to me if the answer is yes. And I would guess some bikes have a wider range of spark plugs that work because they can generate the voltage those...
  4. B

    Cylinder 3 not firing

    Sounds like you have everything covered. Check the float valves to make sure they don't stick
  5. B

    93 Nighthawk 750 cuts off intermittently

    Could be ignition switch. Check the battery ground on the frame for corrosion.
  6. B

    Fork Oil

    I would take my forks apart and clean them. If your front suspension is simply bouncing up and down, it sounds to me like your fork fluid isn't traveling between the chambers like it is supposed to, and hence you have no dampening, leaving your springs to do all the work. And as a result, you...
  7. B

    Fork Oil

    "Used to be"? How long ago?
  8. B

    Coughing and popping after 6K RPM

    That's a great question, Loose Chain. Why didn't I think to ask that?!
  9. B

    Coughing and popping after 6K RPM

    Sorry, wish I did.
  10. B

    Coughing and popping after 6K RPM

    I'm thinking spark units (silver boxes under the seat) or possible corrosion on the coil connections. After that, I'm running out of ideas
  11. B

    Coughing and popping after 6K RPM

    Battery ground free of corrosion?
  12. B

    Coughing and popping after 6K RPM

    Ok. I'm inclined to believe that, too. Have you synced the carbs? Silly things can happen when they are off.
  13. B

    Coughing and popping after 6K RPM

    Is it consistently at 6k or will it run fine sometimes then act up?
  14. B

    Coughing and popping after 6K RPM

    It might need a valve job.
  15. B

    1980 CB750F RESORATION.

    That already looks like dekelvic headers. But the can is not.
  16. B

    93' CB750 asking price question

    Look at similar bikes in good condition then start subtracting repair costs.
  17. B

    93' CB750 asking price question

    Why 82-83? My first bike was a nighthawk (a 97, I think). Never had an issue with it.
  18. B

    Balancing carbs - just a quick question

    I would sync first. The amount of air going through the carbs will affect the fuel being pulled into the mix by the screw. Get the sync done so the vacuums are the same, then adjust the mixture screws.
  19. B

    1981 CB750C - Hard Start after sitting 3 weeks

    Some filters do not let fuel go through them when there is air in the line and they get an air lock. I've had this happen to me and changing to a different filter (I wish I remembered the band) cured it. Some filters are also so restrictive (10 microns) the fuel cannot pass through easily.
  20. B

    Balancing carbs - just a quick question

    Small correction. The butterflies will all open at the same time whether synced or not. The syncing is the adjustment of the butterflies to put them at a starting point, individually, the same as carb 2.
  21. B

    Fork Gaiters

    If all else fails, super glue em on
  22. B

    Bad stator, Bad rotor. Related?

    There isn't a bench test possible with AC power but there are some tests you can run
  23. B

    Carb leak

    If you're taking bowls off to clean the insides, the fuel rail orings should be done, too. I was told that, didn't do it, had to take them apart less than 6 months later. Pretty fun.
  24. B

    Hydrolocked and now won't start.

    Exactly. If the individual components test ok then the connections between them are the next order of business.
  25. B

    Hydrolocked and now won't start.

    If jumping the solenoid is the first thing you did, and the starter bench tested fine, then I'm confused. The starter should be turning over when jumping the solenoid. Maybe you need to check the wires to the starter and the connection at the starter.
  26. B

    Hydrolocked and now won't start.

    When you day "it's fine", what does that mean? The solenoid is fine? You could have tested that by putting a screwdriver (or other metal piece) across the solenoid connections. For free!
  27. B

    Hydrolocked and now won't start.

    If the bike is in gear and you're turning the rear tire, the engine is turning over. Have you jumped the starter solenoid?
  28. B

    Hydrolocked and now won't start.

    May have burned up the starter. Have you tried jumping the starter solenoid? If you jump it but the start doesn't spin, you either need to rebuild it or replace it.
  29. B

    Carb leak

    I've had good luck with all ballz racing, raddakk, and recently bought a fuel rail oring kit from 4-into-1 (I think) that I installed and successfully stopped a fuel rail leak.
  30. B

    Hydrolocked and now won't start.

    12.2 on the bench doesn't mean 12.2 under load. Gotta load test it. Put the multimeter on the battery and hit the starter; watch the voltage drop. Let us know what it drops to.
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