+ Antworten
Seite 1 von 2 1 2 LetzteLetzte
Ergebnis 1 bis 16 von 19

Thema: More Schwalbe problems ( also english)


  1. #1
    Avatar von neu!75
    Registriert seit
    14.07.2012
    Beiträge
    6

    Standard More Schwalbe problems ( also english)

    HI all,
    I'm also a native english speaker that could use some advice.( I didn't want to hijack the other english thread )
    I have a '82 KR51/2 E (16N-12) that tends to sputter and shut off whenever i go over bumps or make sharp turns. My question is if this might be a problem with the needle valve (schwimmernadelventil)?
    While cleaning out the carb i noticed that it wasn't spring loaded.
    Is it the pressure of fuel that pushes it back out it or is it supposed to be spring loaded ?

  2. #2
    Super-Moderator Urgestein Avatar von Zschopower
    Registriert seit
    04.06.2006
    Ort
    Ilsede-Oberg
    Beiträge
    16.244

    Standard

    Hi,
    the needle valve will be opend by the pressure of fuel and it's own weight and closed through the fuel level in the carburetor. (Schwimmer - part no 15)

    Peter

  3. #3
    Glühbirnenwechsler
    Registriert seit
    23.07.2012
    Ort
    Rhein
    Beiträge
    64

    Standard

    hmm.. I'm not quite sure if it is spring loaded, but I couldn't imagine it to work without a spring. When the level rises, the valve opens, but when it sinks again, I think it needs a spring to get pushed back (or gravitation).
    But that would mean that your engine gets to mouch gas. What does your spark plug look like?

  4. #4
    Chefkonstrukteur Avatar von Simsonmatze
    Registriert seit
    27.02.2010
    Beiträge
    2.984

    Standard

    Hi.

    The needle valve opens, if the level sinks and close if the fuelchamber is full. It's the pressure of fuel, that close the valve.

    Greets

    Matze

    P.S. My english is not the best and a little bit rusty, sorry.
    Stets dienstbereit, zu Ihrem Wohl, ist immer der Minol-Pirol!

  5. #5
    Museumsdirektor Avatar von moeffi
    Registriert seit
    03.04.2006
    Ort
    4630 Bochum
    Beiträge
    5.566

    Standard

    i think your problem could have several causes.

    1st possibility: fuel supply. the needle valve (yes, the german term is schwimmernadelventil) is not spring loaded, it only moves because of the fuel's weight inside the tank (opening) and the floater (german: schwimmer) rising when the fuel level is reached (closing).

    you might want to check if your needle valve is worn out. does it close dependably? also the fuel level might need adjusting, this is done by bending the floater. correct values can be found here:


    2nd option: bad contacts somewhere in the ignition system.
    perhaps the spark plug connector is worn out and does not clamp to the plug well enough, so that bumps can shake it off. also, the ignition cable contacts in sparkplug connector and coil tend to rot (especially in the coil). once you're at it, check the ignition coil's ground connection and the brown/white cable departing from ignition switch clamp 2 for bad contacts.

    good luck!
    ..shift happens

  6. #6
    Chefkonstrukteur
    Registriert seit
    09.05.2009
    Beiträge
    3.337

    Standard

    The "Schwimmernadelventil" you referred to is a small valve inside the carburator, that allows the fuel level to be steady by opening if the level goes down: the "Schwimmer" will sink with the fuel, and open the "Schwimmernadelventil".

    I dont think that you meant the Schwimmernadelventil in your first post, but you probably meant the long needle which is pulled by the bowden cable leading to the gas handle, didnt you? That part should definitely be spring loaded, with a big spring which sits right under the cap the bowden cable goes into.

    Edit: The Schwimmernadelventil is part no. 8 in the following picture. The spring that should pull back the bowden cable is part no. 13, and sits below the cap no. 2.

    Schwalbe mit Alarmanlage? --> http://bit.ly/VKh4rI (geht wieder!)

  7. #7
    Avatar von neu!75
    Registriert seit
    14.07.2012
    Beiträge
    6

    Standard

    Thanks for all the advice.
    The reason I thought the Schwimmernadelventil was supposed to be spring loaded is because I've seen the same part on other bikes also being spring loaded.
    I've also forgotten to close the fuel valve after riding a couple times and flooded the sidewalk. So I take it that its normal that fuel escapes through the "Überlaufbohrung" when the fuel valve is left open when the bike is parked for a while? This is something I thought the Schwimmernadelventil would prevent.
    Either way I've now started to close the fuel valve a few yards before reaching my destination in order to lower the fuel level in the carburetor a little just in case.
    I've also ordered a new Schwimmernadelventil as mine might be worn (according to moeffi's advice).

  8. #8
    Chefkonstrukteur
    Registriert seit
    09.05.2009
    Beiträge
    3.337

    Standard

    Loosing fuel while standing is not normal, but common to simson bikes. It can be corrected by (a) buying a new Schwimmernadelventil and (b) correctly setting up the Schwimmer. You have to bend the little lashes on the Schwimmer until the measurements shown above are perfectly reached. The Schwimmer will then close the Schwimmernadelventil when the carburator is full, so that you should not loose fuel. Nevertheless it is recommended to close the fuel valve, because a bit of fuel might still evaporate through the Überlaufbohrung, which will of course make you loose a bit of fuel again. This is not much though.

    Also, if you still have disassembled the carburator, dip the Schwimmer into some hot (!) water. If you can see bubbles coming from it, it is not sealed anymore and has to be replaced because fuel can get into it, which will lead to sinking of the Schwimmer, which will of course reopen the Schwimmernadelventil.
    Schwalbe mit Alarmanlage? --> http://bit.ly/VKh4rI (geht wieder!)

  9. #9
    Chefkonstrukteur Avatar von tagchen
    Registriert seit
    24.08.2008
    Ort
    Berlin
    Beiträge
    2.738

    Standard

    if the needle in ventil have a drift (not up and down) then its defect und need to replace.
    The best method to calibrating the carburetor is the "Senfglas".
    Use a glas and put on the open carburetor->mark the Setpoint on glas and setup the "schwimmer".

    actualy it give trouble with this "schwimmernadelventil" in action he shrink a little and not closed correctly. ->replace with new part.
    We it is??
    KR51/1S 75´/ S51 B2-4 81´/ S70C 86´/ S70C 87´ / Star 69´

  10. #10
    Avatar von neu!75
    Registriert seit
    14.07.2012
    Beiträge
    6

    Standard

    So just to clarify and close this thread I ended up getting a new schwimmernadelventil and it turns out it
    is spring loaded and it fixed the problem with leaking fuel.I'm also guessing that it might not have been
    closing properly and flooding the chamber with fuel.
    Either way the 1,80 Euro part was well worth it! Thanks again for all replies.
    One other thing I was hoping some one could answer. Can anyone tell me what "replika papiere" are?
    I was going to purchase a Schwalbe from a dealer that tried to sell it to me with papers that looked like they were from the 80's but were clearly not.He called them replikas and that they were perfectly legal.
    ???

  11. #11
    Chefkonstrukteur Avatar von Simsonmatze
    Registriert seit
    27.02.2010
    Beiträge
    2.984

    Standard

    Good morning.

    As you talk it sounds like the dealer has bought "Blanko-Papiere" on ebay or somewhere else and complete them self. This is not legal!!! Only two types of Vehicle papers are legal. The original ones, which were delivered with the Schwalbe and the new type, printet by the "Kraftfahrtbundesamt" or short KBA. Somtimes its very difficult to distinguish the original from the faked Blankos. Best is, you post some pictures of the papers, so we can see it and check the originality.

    Greets

    Matze
    Stets dienstbereit, zu Ihrem Wohl, ist immer der Minol-Pirol!

  12. #12
    Super-Moderator Museumsdirektor Avatar von totoking
    Registriert seit
    05.04.2007
    Ort
    Hamburg
    Beiträge
    5.945

    Standard

    And if your papers are not legel it`s no problem to require new one from the KBA. You only have to write an e-mail to them. Further information you can find in our FAQ (Papiere beantragen).
    Greets
    Sirko
    Ich wünschte ich wäre eine Lorbeere, dann hätt ich nichts zu tun als auf mir auszuruhn!!!

  13. #13
    Chefkonstrukteur
    Registriert seit
    09.05.2009
    Beiträge
    3.337

    Standard

    The "replika" papers are not legal in any way. You could get into serios trouble by using them.

    If you want to use your vehicle legally, just write an email to the Kraftfahrtbundesamt in Germany. Tell them the exact type and year of your vehicle, also tell them the number on the frame. a few days later you will get new papers printed on special paper, and everything is fine.

    you will have to pay the postman directly, the sum is just below 30 euro AFAIR.

    Dont bother with filling out the form on their website, that is not needed. just write an email.

    Of course, if the bike is stolen they will notice that with the number you sent them, so be sure not to ask for papers for a stolen bike.
    Schwalbe mit Alarmanlage? --> http://bit.ly/VKh4rI (geht wieder!)

  14. #14
    Avatar von neu!75
    Registriert seit
    14.07.2012
    Beiträge
    6

    Standard

    Heres a pic of the papers. Sorry it took a while. Thanks for the infos!
    The dealer ( Nico Walter at Zweitaktschwein in Düsseldorf ) claimed that replicas are perfectly legal when I confronted him on it.
    I'm not sure if he tries to scam all his customers or if he just does it to people he thinks are foreigners.





  15. #15
    Administrator Urgestein Avatar von Prof
    Registriert seit
    18.04.2003
    Ort
    auf dem Lande
    Beiträge
    18.376

    Standard

    These papers are definitely fakes (not even good ones) and not legal as vehicle documents. You can get into serious trouble by using them (which also can happen to the guy who sells them).
    Disclaimer: Beiträge können Ironie und unsichtbare Smileys enthalten.

  16. #16
    Avatar von neu!75
    Registriert seit
    14.07.2012
    Beiträge
    6

    Standard

    I see..good to know.
    I'm not using these replika papers as they are the ones i got from Zweitaktschwein after putting down a deposit on the bike they were building.

+ Antworten
Seite 1 von 2 1 2 LetzteLetzte

Ähnliche Themen

  1. Schwalbe problems (english)
    Von timothy im Forum Technik und Simson
    Antworten: 9
    Letzter Beitrag: 13.08.2012, 21:28
  2. Meine Schwabe und ich sind hier neu
    Von Schwälbchen im Forum Smalltalk
    Antworten: 7
    Letzter Beitrag: 23.05.2006, 17:46
  3. uberwurfmutter problems (english)
    Von Mr3s im Forum Technik und Simson
    Antworten: 2
    Letzter Beitrag: 19.08.2004, 18:46

Berechtigungen

  • Es ist dir nicht erlaubt, neue Themen zu verfassen.
  • Es ist dir nicht erlaubt, auf Beiträge zu antworten.
  • Es ist dir nicht erlaubt, Anhänge hochzuladen.
  • Es ist dir nicht erlaubt, deine Beiträge zu bearbeiten.