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

Suzuki Across flat spot

Discussion in 'Suzuki 250cc In-line 4's' started by marco, Apr 30, 2014.

  1. px400

    px400 Active Member

    Messages:
    8
    Likes Received:
    6
    Trophy Points:
    173
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Sydney, Australia
  2. JiffyJoker

    JiffyJoker Well-Known Member

    Messages:
    35
    Likes Received:
    19
    Trophy Points:
    203
    Joined:
    May 25, 2014
    Gender:
    Male
    Location:
    Bowen
    My Bike:
    Suzuki GSX250F
    Finally!

    Sent from my SM-G900I using Tapatalk
     
  3. sarahb

    sarahb Well-Known Member

    Messages:
    169
    Likes Received:
    125
    Trophy Points:
    248
    Joined:
    May 9, 2015
    Location:
    Canberra
    My Bike:
    2008 Triumph Daytona 675
    I don't know the original size but I replaced my fuel line within the last month or so.. (95 across) will check in the morning and get back to you.


    Sent from my iPhone using Tapatalk
     
    • Like Like x 1
  4. px400

    px400 Active Member

    Messages:
    8
    Likes Received:
    6
    Trophy Points:
    173
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Sydney, Australia
    Thanks Sarahb!
     
  5. sarahb

    sarahb Well-Known Member

    Messages:
    169
    Likes Received:
    125
    Trophy Points:
    248
    Joined:
    May 9, 2015
    Location:
    Canberra
    My Bike:
    2008 Triumph Daytona 675
    Sorry I'm a day late. I went out and checked the hose.

    I thought it had useful numbers on it. But just this

    From memory it's 5mm. But I'm not 100% sure. Sorry.


    [​IMG]


    Sent from my iPhone using Tapatalk
     
  6. px400

    px400 Active Member

    Messages:
    8
    Likes Received:
    6
    Trophy Points:
    173
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Sydney, Australia

    Thanks for the photo!

    I checked the one installed in my bike and the model and I realise that the connection in the carburetor and the one in the fuel pump are different sizes! That's why I can't find fuel house that fits! Dumb mistake!

    So for now I will deal with the current fuel lines and I record this video to show the bike running.

    What's happen is that the bike won't hold the rpm for long. In the video I had to set to 3000 rpm otherwise the bike die AND, as well, after feel seconds running if I don't give twist the gas she will die.

    I guest Is due to the fact that all settings of the carb for poor/rich fuel/air is totally wrong because I don't have skills or tools to do it.

    So from now on or I learn how to do it myself or I'll have to call some mobile mechanic in Sydney to have a good check on it!

     
  7. Pygmygod

    Pygmygod Well-Known Member

    Messages:
    159
    Likes Received:
    78
    Trophy Points:
    228
    Joined:
    Mar 19, 2015
    Gender:
    Male
    Location:
    Victoria
    I'd bet more money on the carb jets needing a clean (pilot jet almost blocked) rather than fuel hoses being an issue.
     
  8. sarahb

    sarahb Well-Known Member

    Messages:
    169
    Likes Received:
    125
    Trophy Points:
    248
    Joined:
    May 9, 2015
    Location:
    Canberra
    My Bike:
    2008 Triumph Daytona 675
    If you search balance carbs Suzuki across on YouTube there's some good videos on how to balance the carbs with 2 plastic or glass water or oil bottles and some tubing (Bunnings, $6)


    Sent from my iPhone using Tapatalk
     
  9. sarahb

    sarahb Well-Known Member

    Messages:
    169
    Likes Received:
    125
    Trophy Points:
    248
    Joined:
    May 9, 2015
    Location:
    Canberra
    My Bike:
    2008 Triumph Daytona 675
    I have also had issues with throttle cable not having enough free play and therefore revving higher or lower depending on the handle bars position.


    Sent from my iPhone using Tapatalk
     
  10. Willrcr15

    Willrcr15 Well-Known Member Premium Member

    Messages:
    545
    Likes Received:
    392
    Trophy Points:
    373
    Joined:
    Nov 11, 2013
    Gender:
    Male
    Location:
    Newcastle
    My Bike:
    FZR250 3LN 89
    A less sophisticated method is to use a very fine strand of copper wire say from a piece of speaker cable & use it as a feeler guage beneath the butterflys in the inlet tract to set all the clearances the same, its a good rough place to start.
    I've got balance guages & I don't bother with them any more, the feeler guage system is good enough & most times can't be improved.
    But, the carb butterfly adjustment will require a sequence from left to right or from centre & out, check a manual & find it out for your bike otherwise you'll chase your tail setting them.
    The down side is that the carbs have to come off the bike & onto the bench to do it.
    If you do get that far then when you start the bike the idle will be a bit high, just wind the idle set screw back to 1k rpm or so.
     
  11. sarahb

    sarahb Well-Known Member

    Messages:
    169
    Likes Received:
    125
    Trophy Points:
    248
    Joined:
    May 9, 2015
    Location:
    Canberra
    My Bike:
    2008 Triumph Daytona 675
    [​IMG]

    Here's the numbers On the fuel line that may (have been) helpful


    Sent from my iPhone using Tapatalk
     
  12. wally_escondido

    wally_escondido Member

    Messages:
    23
    Likes Received:
    29
    Trophy Points:
    23
    Joined:
    Feb 9, 2016
    Gender:
    Male
    Location:
    Laverton, Victoria, Australia
    My Bike:
    1990 Suzuki GSX250F Across, '88 GSXR813 ' fighter, 1982 XJ750 wreck.
    I've just had my '90 model back on the road after a weekend tending to the carbs and have used 5/16 injected hose all over and 8mm spring clips for all the barb connections. The bike now has a universal fuel filter (5/16 barb) positioned right before the pump inlet as well. This thing goes off it's absolute dial now! I had a complete blockage in the left hand cold start jet, two mains and a pilot were almost completely gunked up, both of the float valve meshes had some weird fabric growing on them, the idle screws had the clap, the choke valve holders were loose, the list goes on. My wife wasn't happy with my use of her ultrasonic cleaner, but that combined with sodium percarbonate, metho to remove any water from the clean pieces, a few cans of carby cleaner to blast out the galleries, and some high e guitar strings for the more troublesome jet deposits left me with some squeaky clean units. Throw in the complete Litetek seal kit; three extra throttle valve screws (Litetek only provide 5); rum; champion ruby 50gm; patience; the correct tools; some SBS Chill; by 3pm Sunday arvo I had a new bike that pulls like an altar boy, with more grunt than a sodomised bush pig!
     
    • Like Like x 9
  13. sarahb

    sarahb Well-Known Member

    Messages:
    169
    Likes Received:
    125
    Trophy Points:
    248
    Joined:
    May 9, 2015
    Location:
    Canberra
    My Bike:
    2008 Triumph Daytona 675
    Thats awesome. I'm jealous. Can you do mine please? # FOMO
     
    • Like Like x 1
  14. wally_escondido

    wally_escondido Member

    Messages:
    23
    Likes Received:
    29
    Trophy Points:
    23
    Joined:
    Feb 9, 2016
    Gender:
    Male
    Location:
    Laverton, Victoria, Australia
    My Bike:
    1990 Suzuki GSX250F Across, '88 GSXR813 ' fighter, 1982 XJ750 wreck.
    Hah hah, of course, but you're buying the rum!
     
    • Like Like x 3

Share This Page