Air fuel ratios

Discussion in 'The Garage' started by Chris6406, Mar 13, 2014.

  1. Chris6406

    Chris6406 New Member

    Elo all how can i sort the air fuel ratio out. Ive read about pulling the plugs until there a beige colour however pulling the plugs after every quarter adjustment isnt really practical
     
  2. Stephen-Niall

    Stephen-Niall New Member

    Pulling the plug after every quarter turn is the way I've always done A/F adjustments. There are hundreds of guides out there so I won't go into detail, But Halfords sell these kits
    http://www.halfords.com/webapp/wcs/...uctId_170260_langId_-1_categoryId_255216#tab1

    It's like a glass topped spark plug holder thing so you can see the colour without keep having to remove the plug.

    - That's a video of someone putting one on a bike.

    I've never used one myself but at a tenner from £35 I might pop down later and get one to have a play with.
     
    2 people like this.
  3. Chris6406

    Chris6406 New Member

    Is this the same thing
     
  4. Chris6406

    Chris6406 New Member

    Watch "Tuning MGB with Gunson colortune from Accuspark" on YouTube
    Tuning MGB with Gunson colortune from Accuspark:
     
  5. Chris6406

    Chris6406 New Member

    A tenner you say in halfords
     
  6. Chris6406

    Chris6406 New Member

    Just got one for a tenner see how it goes
     
  7. Stephen-Niall

    Stephen-Niall New Member

    Yeah, That's the same one. Let us know how it turns out & I might get one myself at that price.
     
  8. Dooffle

    Dooffle New Member

    I just use my nose, you can smell when the mixture is right.:thumbsup:
     
    2 people like this.
  9. smudger

    smudger I Love SV650's

    I just ride the bike and listen

    Sent from my GT-I8190N using Tapatalk
     
  10. robj

    robj If at first you don't succeed, get a bigger hammer VIP Member

    That explains so much! :lol:
     
    2 people like this.
  11. smudger

    smudger I Love SV650's

    Why because my exhaust dont go pop flames or near stalls when slowin down my method works lol

    Sent from my GT-I8190N using Tapatalk
     
  12. smudger

    smudger I Love SV650's

    Twat i just te read that lol

    Sent from my GT-I8190N using Tapatalk
     
    2 people like this.
  13. Chris6406

    Chris6406 New Member

    I guaratee this will do better than your nose and ears if not how much do you charge to smell my tail pipe lmao
     
  14. smudger

    smudger I Love SV650's

    He may rim it lol

    Sent from my GT-I8190N using Tapatalk
     
    2 people like this.
  15. Chris6406

    Chris6406 New Member

    Lol im gunna give it a try tomorow i didnt have a clue how it works but its really good and good to get a look at the combustion
     
  16. Temeluchus

    Temeluchus New Member

    How and why are you trying to adjust "air fuel ratios"?

    Are you just trying to set the idle mixture? then the colortune will do the trick.
     
  17. Chris6406

    Chris6406 New Member

    Yeh its running rich mate ive synced the carbs want the mixtures as close to perfect as pos
     
  18. Dooffle

    Dooffle New Member

    To get it right you will need to check each cylinder, then re sych the carbs, then recheck.
    You may find after setting the mixture this way the bike will overheat quicker on tickover.
     
  19. Chris6406

    Chris6406 New Member

    Oh my god i wish i had a v twin the tool is good but i need surgical hands to get to my plugs
     
  20. pch1

    pch1 In the gang with Ewan and Charley VIP Member

    Depends:
    Is it two stroke, or four stroke?
    Is it single or multi-cylinder?
    Is it single carburettor, multi-carburettor or fuel injection?
    Do you want it set for economy or maximum power?

    Before you start fettling, return all settings to manufacturers standard (often quoted in the handbook) and start from there.
     

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