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V7S Stalling, hot weather

Discussion in 'V7/V85/V9 Chat & Tech' started by Ayahuasca, Jul 31, 2020.

  1. Ayahuasca

    Ayahuasca Just got it firing!

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    Hi everyone, newcomer here.

    2014 V7 Special, 15XXX km / around 9XXX miles on it.
    I've been having a stalling issue on hot sunny days. The bike stalls right after starting it and the only way to prevent it is reving it up until it stabilizes itself. This only happens when it is hot outside and the bike as been sitting under the sun.
    I've tried cracking the gas tank open before starting but didn't seem to help.
    The local motorcycle shop I go too checked it and didn't find anything obd2 related, told me I should go to a Guzzi dealer but the closest to my home is 300km away.

    Did you guys enconter anything like this before? If so any tips on fixing it?



    P.s. sorry for my english
     
  2. Bill Hagan

    Bill Hagan GT Reference GT Famiglia

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    Your English is way better than my grasp of any other language!

    Not sure if my recent experience has any application to yours, but I’ll toss it out for your consideration.

    As a result of overfilling — not by me, I swear! ;) — the sump of my Stornello, the air box got filled a bit with oil. That “bit” of oil got into the throttle body and obstructed sensors in the “integrated” ECU and stepper motor.

    Despite that, the engine ran fine EXCEPT that it would die at idle when coming to a stop.

    Extracted excess oil, cleaned out air box, and sprayed MAS cleaner into TB.

    Cured.

    again, this may be all irrelevant to your own issue, but I thought I’d share it just in case it was helpful.

    Best wishes,

    Bill
     
  3. V700Steve

    V700Steve High Miler GT di Razza Pura

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    Getting rid of the EVAP canister may help also, route the fumes to fresh air w/o tipover valve.
     
  4. Ayahuasca

    Ayahuasca Just got it firing!

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    I'll have a look at the TB for sure, last time I swapped my air filter the air box had oil in it.

    I've seen people talk about the evap system many times now and I think i'll try getting rid of it. I have no clue where to start though..
     
  5. V700Steve

    V700Steve High Miler GT di Razza Pura

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  6. Ayahuasca

    Ayahuasca Just got it firing!

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    Thank you Sir!
     
  7. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

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    Since you say it is sitting in the sun, the engine temp or air temp sensor may be giving high temp readings. That will mess up the fueling mix the ECU says to deliver. Try parking out of the sun.
     

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