• CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them.  All CB750 enthusiasts are welcome regardless of where you are from or whether you are into CB750 choppers, bobbers, cafe racers, drag bikes, or restorations.  Enjoy the site!
  • The Stinker - Old and Slow Racing Team

    Check out this 1980 CB750K called The Stinker from Old and Slow Racing Team! This did 131 MPH at the Texas Mile in March of 2013.

  • Recent Forum Posts

    amc49

    Take a working vac gauge hose like #3 and trade it with #4 and see if anything changes. Then another to be sure. Same with coils, swap the two coilpacks

    1981 CB750C custom carbs

    amc49 Today, 12:16 AM Go to last post
    fingerprice

    please ask

    spoked rear wheel

    fingerprice Yesterday, 11:31 PM Go to last post
    umacs4

    Syncing the carbs the vacuum on 1 thru 3 on the dial was 30 on #4 it was 0..no movement. tried to adjust the jet in (all the way) or out and it didnt

    1981 CB750C custom carbs

    umacs4 Yesterday, 09:17 PM Go to last post
    amc49

    Run the compression check again, the numbers make no sense. Think about the odds of ALL 4 cylinder readings ending at an even 8 for a number. Impossible.

    1981 CB750C custom carbs

    amc49 Yesterday, 07:09 PM Go to last post
    amc49

    You can clean carbs till the end of this planet and might not be them.

    The engines are well known for valve problems due to them burning

    Bogging at 3000 rpm Keihin Carbs...

    amc49 Yesterday, 06:52 PM Go to last post
    garbal

    I'm at the end of my rope here, I have had the carbs off 5 times now, apart back together, apart, back together.
    I've cleaned them ultrasonically

    Bogging at 3000 rpm Keihin Carbs...

    garbal Yesterday, 12:01 PM Go to last post