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Recent content by Scootch

  1. Scootch

    CB750 K1 jetting Help

    I just rebuilt the carbs on my '70. FWIW... Yamiya recommended going to the 110 main jet instead of the 120 with the clip on the middle position of the needle. Also I drilled out the top holes (A) on the emulsion tubes to 1mm to allow a little more air to the fuel/air mix. Also note the slow...
  2. Scootch

    Front brake caliper 1077cb750k

    Was everything working OK prior to the latest work performed? May need to do some maintenance / cleanup / lubrication on the caliper / piston. Or maybe the piston is hanging / jammed up?
  3. Scootch

    New to the Forum

    You will have a blast riding it. Its like driving a classic car around. You will get many looks and thumbs up :) Even people who are not motorcycle people look, stare, and want to talk to you. The bikes are beautiful and pleasing to the eye. I had always wanted one. It took me 50+ years to get...
  4. Scootch

    Weird Issue

    Sounds like a fuse is blown or there is a bad or open connection between the battery - and frame (ground) and battery + and fuses, solenoid, etc. Check all connections. Maybe remove connections and terminals and freshen them up.
  5. Scootch

    Front brake caliper misaligned with brake disk

    I'm having a difficult time envisioning what the problem is but.... Did you push the piston back in using a C clamp or such?
  6. Scootch

    Weird Issue

    If that was shorting to the frame (ground) I might suggest that the battery might be dead. Measure the voltage of the battery? Charge it?
  7. Scootch

    Pulling my hair out

    Are the carb cables adjusted properly at the carb tops? Are the mixture screws set properly? Are the idle screws set properly? Do the carb slides open and close together? Do the carb slides bottom at the idle screw simultaneously? Have you synced the carbs? Do you have vacuum leaks? Do you have...
  8. Scootch

    HM300 CB750K exhaust

    For sale or what?
  9. Scootch

    Sandcast value

    Thank you Maury! re: your offer... certainly in the ballpark of where I would be. Without seeing pics and having much more info its really hard to say. That being said I will go out on a limb and say my initial impression was thinking $4800 - totally off the top of my head. I would love to see...
  10. Scootch

    Sandcast value

    Yes the cost of parts is in the stratosphere. I'm pretty sure exhaust pipes can be chromed. Might depend on the specific facility. Regarding posting pics... The only site I'm somewhat familiar with is Google Drive. I believe you can post pics there and provide a link to the folder.
  11. Scootch

    Sandcast value

    Any chance to post a couple pics? Guess it depends on what you plan to do with it. What is being asked for it? Could easily throw $20k+ in parts, motor, chroming etc. at it. Check Bring a Trailer for recent prices that others have sold for this summer. However the market has turned some since...
  12. Scootch

    Help. 1978 CB750k not starting

    Sounds like you took a step backwards after you changed the plugs. Maybe there is an issue with plug wires or caps? Did you install correct plugs? I might go back to the old plugs, get it running and go from there.
  13. Scootch

    Throttle Stays Open

    Routing, binding, springs. Proper cable adjustment and slack?
  14. Scootch

    1981 CB750C Rear Sprocket Change?

    Here is a link to a sprocket calculator https://sprocketcalculator.com/bike-honda-cb750-1970-1982
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