/ Register

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

running problem

Discussion in 'Yamaha 250cc In-Line 4's' started by dustyjax, May 10, 2011.

Page 2 of 2
  1. dave

    dave Well-Known Member

    Messages:
    2,184
    Likes Received:
    26
    Trophy Points:
    503
    Joined:
    Apr 13, 2005
    Gender:
    Male
    Occupation:
    Instro tech
    Location:
    Tasmania
    My Bike:
    SV1000
    The CR9E plugs would run slightly colder than the 8'8 and would foul up easier.

    Repco, autobarn, bursons or supercheap should have those in stock or get them for you
    .
     
    dave, May 23, 2011
    #21
  2. dustyjax

    dustyjax New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    May 10, 2011
    thanks Dave,
    I have noticed that I have piting on one of the needles that goes in though the DIAPHRAGM where can i get a replace ment one from, I have 2 of them with steel washers on the and 2 without is that correct and do they go in to 1&4 with the washers on or 2&3, my son got to they when I wasn't watching an mixed them up.
    cheers Mike
     
    dustyjax, May 23, 2011
    #22
  3. dave

    dave Well-Known Member

    Messages:
    2,184
    Likes Received:
    26
    Trophy Points:
    503
    Joined:
    Apr 13, 2005
    Gender:
    Male
    Occupation:
    Instro tech
    Location:
    Tasmania
    My Bike:
    SV1000
    Ok on the pitted needles. There was a post recently mentioning that the Hyosung carbs were the same units as the 3LN carbs. That would seem to be the best chance of getting new parts.

    <!-- m --><a class="postlink" href="http://fzr250.com/viewtopic.php?f=2&t=3648&hilit=Hyosung">http://fzr250.com/viewtopic.php?f=2&t=3 ... it=Hyosung</a><!-- m -->

    As for the washers, my understanding is that the carbs are identical except for jet sizes. Hopefully some one else will be able to provide more info for you.
     
    dave, May 23, 2011
    #23
  4. SnowFox

    SnowFox New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 22, 2009
    Are 2KR Carbs same as 3LN?
     
    SnowFox, May 24, 2011
    #24
  5. dave

    dave Well-Known Member

    Messages:
    2,184
    Likes Received:
    26
    Trophy Points:
    503
    Joined:
    Apr 13, 2005
    Gender:
    Male
    Occupation:
    Instro tech
    Location:
    Tasmania
    My Bike:
    SV1000
    My information says BDS26 with a 24mm bore for the 2KR and
    I think the 3LN are bigger
     
    dave, May 24, 2011
    #25
  6. dave

    dave Well-Known Member

    Messages:
    2,184
    Likes Received:
    26
    Trophy Points:
    503
    Joined:
    Apr 13, 2005
    Gender:
    Male
    Occupation:
    Instro tech
    Location:
    Tasmania
    My Bike:
    SV1000
    BDST28 for the 3LN
     
    dave, May 24, 2011
    #26
  7. dustyjax

    dustyjax New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    May 10, 2011
    hi just an up date, I have the bike running now, thanks to all your input and help,
    cheers Mike <!-- s:Biker1: --><img src="{SMILIES_PATH}/th_Biker_1.gif" alt=":Biker1:" title="biker_1" /><!-- s:Biker1: -->
     
    dustyjax, Jun 11, 2011
    #27
  8. Benson

    Benson New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 25, 2011
    Hi Mate,

    Not sure if you use the forum much anymore but thought I'd run a question by you about my FZR 250. I've been having similar issues to what you were describing in this post

    The bike runs fine when idle but seems to flood when i hit a hill

    I adjusted the float tangs to try get the fuel levels on the carby bowl line... but after a quick ride I'm thinking that the guys on the forum suggesting 10.5mm above the line are right, as the bike really struggeld at high revs. It also lost power and died uphill again, seemingly the same issue.

    Just wondering how you solved your dramas... reading through the post, a few of the suggested solutions were float level, fuel pump (i also don't have one) and EXUP valve (haven't checked this yet but the cables and servo seem fine)

    Cheers

    Ben
     
    Benson, Feb 3, 2012
    #28
Page 2 of 2

Share This Page