S53M will not drive

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  • Hi.


    My Simson S53M can run idle, but not good. When i try to rev up, the engine will just stop.


    The caburator is new (bought yesterday) and the engine is just renewed. We (me and my dad), think it could be the ignition, but we are not sure. Everything at the moped looks fine.


    Even a danish moped mechanic can\'t fix it. Maybe because a Simson is a very rare moped in Denmark.


    Do you know what\'s can be wrong? or do you know a good moped mecanic in Germany that can fix it? We won\'t drive too south in Germany, so please tell me one near Denmark (not souther than Berlin)


    Sorry for my bad english.


    /Dennis.

    .. A Danish Simson driver

  • first we need to know wich ignition you have: PVL, VAPE, Electronic


    is the caburator adjusted?


    is the gas slidegate valve in the correct position?


    wich caburator you have installed?


    how large is the main jet in the carbuator?



    i think the problem is the carburator as you got not enough gasoline into the motor

    "Ich lasse jedermann Gott so anbeten, wie er es für angemessen hält,
    und ich glaube, dass jeder das Recht hat,
    den Weg in das unbekannte Land des Himmels oder der Hölle zu nehmen,
    den er bevorzugt"

    (Friedrich II. / 30.Dez.1782)


    "Gott bewahre uns vor religiösen Eiferern"
    (Friedrich II. / unbekannt)


    "may you be an half hour in heaven, before the devil knows you*re dead"
    (irish wish, unknown)



  • 1. The ignition is Electronic
    2. Yes, the caburator is adjusted
    3. Yes, the gas slidegate vave is in the correct position.
    4. I have installed this caburator: http://www.a-k-f.de/shop/produ…1--1103--bis-60-km-h.html
    5. The main jet is 15mm (if this is what you are thinking about)

    .. A Danish Simson driver

  • Zitat


    Original von Dk-dda:


    5. The main jet is 15mm (if this is what you are thinking about)


    Impossible! The main jet is 0,68mm! And this carburator do not work with your power filter!

    Simson ist ein Virus 8|
    Hubraum ist durch nichts zu ersetzen...

  • Zitat


    Original von merci_pur:


    Impossible! The main jet is 0,68mm! And this carburator do not work with your power filter!



    I thought the main jet was something else. I did not understand what he meant by that. And I\'m not using my power filter! I sold it to my friend.

    .. A Danish Simson driver

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