1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Pod filters on a GSX 250

Discussion in 'Suzuki 250cc Twins' started by Evo, Jul 15, 2015.

  1. Evo

    Evo Well-Known Member

    Messages:
    117
    Likes Received:
    95
    Trophy Points:
    228
    Joined:
    Feb 17, 2015
    Gender:
    Male
    Location:
    Adelaide
    My Bike:
    GSX250
    So I am wanting to do away with the air box and run pod filters on my GSX250. Now I know that there are some issues as the stock carby, mikuni BS30 SS is a CV.

    This is where I'm at right now.

    I can get the bike to idle fine after a few minutes of warm up and seems to rev ok in neutral. There may be a slight lag in response but I am unsure as I have nothing to go off but I do not feel that this is a problem.

    As far as having the engine "under load" and how it performs is currently unknown as it's not quite ready to blast around the streets. In saying that I believe that this is where the problem will be.

    After searching the internet for thoughts and solutions to this problem the best I could find was on here. It was a thread by Dave H titled "Another GSX 250 CafeRacer" Going from the pics he was using pods and seemed to have luck with a 118 main and a 120 pilot.

    So now for a few questions

    Would changing jets to 118 main and 120 pilot be the first place you would start?

    What other things would influence the setup? Exhaust, condition of engine

    What else would need to be done to the carby or the engine?

    And I guess most importantly is it even worth going through the process?
     
  2. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,734
    Likes Received:
    2,874
    Trophy Points:
    943
    Joined:
    Mar 18, 2014
    Location:
    Sydney NSW
    My Bike:
    FZR250R 3LN6
    CV carbs are almost impossible to get running correctly with pod filters. If you do go down that route, change 1 thing at time on the bike/carbs and test.

    The other, more expensive option, is brand new carbs.
     
    • Like Like x 1
  3. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    5,107
    Likes Received:
    3,473
    Trophy Points:
    1,148
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22
  4. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,734
    Likes Received:
    2,874
    Trophy Points:
    943
    Joined:
    Mar 18, 2014
    Location:
    Sydney NSW
    My Bike:
    FZR250R 3LN6
    That's a good read
     
  5. Evo

    Evo Well-Known Member

    Messages:
    117
    Likes Received:
    95
    Trophy Points:
    228
    Joined:
    Feb 17, 2015
    Gender:
    Male
    Location:
    Adelaide
    My Bike:
    GSX250
    That article kept popping up in a lot in google. It is a very good article and written in simple language.
    After thinking about this over the last couple if day I am now going to put the air box back in and get it up and running to make sure that if I do start to play around with the carbys I know that it everything else will be good and any changes I make are not effected by other factors.

    So next task. Engine out, air box back in.

    I also have a spare carb so might start to play around with that and pull it apart to gain a greater understanding of how the work
     
    • Like Like x 2
  6. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    5,107
    Likes Received:
    3,473
    Trophy Points:
    1,148
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22

Share This Page