Results 1 to 4 of 4
  1. #1
    CB750 Member Friartuck's Avatar
    Join Date
    May 2013
    Location
    Central NJ
    Posts
    12

    K6 Carb Slow Jet Question

    Question regarding a 1976 K6 Carb and the the slow jet (also called the pilot jet) the small one next to the main jet). Is there a hole (passage) in the barrel of the jet near where the threads begin and the four small holes are in the side of the barrel? I can't tell if I have a serious clog or am hitting the end of the hole with my dental pick (needle). Anyone care to predict the result if a small #70 size drill hole were made inside the jet?

    Edit: the number on the side reads "40"
    Attached Thumbnails Attached Thumbnails K6CARBSLOWJET.jpg  
    Last edited by Friartuck; 05-17-2013 at 04:33 PM.

  2. #2
    Moderator dirtdigger's Avatar
    Join Date
    Feb 2012
    Location
    Black Hawk SD
    Posts
    3,043
    Yes the hole should go all the way through the jet. Soak in carb clean and used compressed air. I dont like sticking things in the jets because of the soft brass you can inadvertantly enlarge the hole which will change your jetting. I takes very little change in hole size to change jetting.

  3. #3
    CB750 Member Friartuck's Avatar
    Join Date
    May 2013
    Location
    Central NJ
    Posts
    12
    dirtdigger, Thanks for the reply. I thought it was obvious that the hole would go all the way through, but didn't want to risk ruining the jet to find out. It was just too much of a coincidence that all four were clogged that no instrument, metal pick or toothpick would push through. I also see that CB750 supply sells a complete set of jets which we'll put on the list for the next order. FYI, I tried ultrasonic cleaning the carbs and I was not overly impressed. Perhaps it was the fluid I was using.

  4. #4
    Moderator dirtdigger's Avatar
    Join Date
    Feb 2012
    Location
    Black Hawk SD
    Posts
    3,043
    I dont have an ultra sonic cleaner but I have heard different cleaners make a big difference in how well it works, temperature is also a big factor in how well it cleans.

Similar Threads

  1. carb sync question
    By Clint in forum The CB750 Garage
    Replies: 8
    Last Post: 04-19-2013, 11:18 PM
  2. 79 cb 750k ANOTHER JET QUESTION
    By motopsycho in forum The DOHC Garage (1979-1983)
    Replies: 0
    Last Post: 03-26-2013, 07:59 PM
  3. Slow jets
    By CB750Todd in forum Carburetors / Fuel
    Replies: 3
    Last Post: 03-08-2013, 12:09 PM
  4. Jet sizes
    By jays-cb750 in forum Carburetors / Fuel
    Replies: 7
    Last Post: 12-05-2012, 04:37 PM
  5. Simple (i hope) carb question
    By vegastruckee in forum The SOHC Garage (1969-1978)
    Replies: 7
    Last Post: 06-06-2012, 12:43 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •