DT125R FORUM

    • Register
    • Login
    • Search
    • Recent
    • Tags
    • Popular
    • Users
    • Groups

    Uneven sparkplug colour

    Carburetor
    2
    3
    132
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • L
      linedem last edited by

      Hi.

      I am trying to tune idle mixture (0-1/8 turn of throttle) but whenever I screw out the spark plug its colour is uneven.
      Which side of the sparkplug is important to me?
      67877641_2347416018661641_2267600083539197952_n.jpg

      69260076_492946291481815_8763602831564341248_n.jpg

      1 Reply Last reply Reply Quote 0
      • Calum
        Calum last edited by

        Looks good to me pal.

        Plug chops only really give you an indication when wide open throttle is applued at load.

        For idle you will need an afr or colortune gunsome indicator.

        Always Originate, Never Pirate!

        1 Reply Last reply Reply Quote 0
        • L
          linedem last edited by

          Oh I did not know that...

          My method was that I turned out A/F screw about the same as the manual says (28mm Mikuni - 1 and 1/4). Then i went for calm ride using only up to 1/8 turn of the throttle. After 10km I checked spark plug and based on colour of it I further turned the A/F screw inwards. So I did not base on factory setting but on colour of spark plug...

          I hope my English is understandable enough...

          1 Reply Last reply Reply Quote 1
          • First post
            Last post