carb diagrame 3ln1

Discussion in 'Yamaha 250cc In-Line 4's' started by glen5122, Jan 25, 2009.

  1. glen5122

    glen5122 New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 22, 2008
    sorry if this question has already been asked but i have a 3ln1 and every picture i find of the carbs looks nothing like mine just wondering if any one can steer me in the right direction cuz im gona give them the cleaning of their life tomoro and it would help heaps

    (they dont have a big scoop or three adjusters like the ones in the pics. only to little holes with brass fittings inside)
     
  2. 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
    There appears to be 3 different model carbs on 3LN
    Part No's
    3LN1 3LN-14900-00
    3LN3-5 3LN-14900-10
    3LN6-7 3LN-14900-20

    Sorry can't help with pictures, but once you take the float bowls off just unscrew the jets but don't mix them up as sizes are different between the centre and outside carbs.. The rest is easy..
     
  3. glen5122

    glen5122 New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 22, 2008
    ok i got these pics from thred <!-- l --><a class="postlink-local" href="http://www.fzr250.com/viewtopic.php?f=20&t=673">viewtopic.php?f=20&t=673</a><!-- l -->

    I know what most of them do but if someone could just clear things up would be awsome
    [​IMG]
    if some one could please tell me what each on is i would really appriciate.
    [​IMG]
    what is down the two holes and do they come out for cleaning
     
  4. 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
    Just necessary airways to other parts of the carb, but they need to be clean. You find the other ends of them when you dismantle the carbs and spray contact cleaner thru them..
     
  5. glen5122

    glen5122 New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 22, 2008
    thanx dave for your reply. if you weren't here there would alot of questions that would go unanswered.
     
  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
    Me thinks if I weren't here to manage the site, it would be shut down or transferred to the exup brotherhood site <!-- m --><a class="postlink" href="http://www.exupworldwide.com/forum/index.php">http://www.exupworldwide.com/forum/index.php</a><!-- m -->. Sometimes my answers are a bit brief 'coz I don't always have a lot of time to spare.
     
  7. glen5122

    glen5122 New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 22, 2008
    it's alright if your answers are brief cuz you answer questions from newbies (that could be found with the search button) with out flamming them. trust me this is very nice (not to mention patient) compared to almost all other forums.
     

Share This Page