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onlyoldiron4me
Lv 5
onlyoldiron4me asked in Cars & TransportationMotorcycles · 1 decade ago

my yamaha virago 1000 is backfiring and popping?

Hi I just picked up a Yamaha XV1000, it pops and backfires thru the exhaust, I heard it is the air pump or whatever it is in the left fake air cleaner. Which part usually gos bad, the round valve or the flat looking valve?

4 Answers

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  • ?
    Lv 6
    1 decade ago
    Favorite Answer

    probably not, but could be plug wire.

  • Jon
    Lv 7
    1 decade ago

    I'd be willing to bet its not an air pump. I bet the bike needs a valve adjustment, and the carbs synced. Virago's are notorious for the backfire from the valves being the slightest out of adjustment, and carbs not being tuned right. I've seen a few of them with the exact same problem, and they were all the same fix.

    Source(s): Honda & Suzuki Service Technician Graduate of MMI (Motorcycle Mechanics Institute) Phoenix Az. 25+ years riding experience
  • OutdoorsMan
    1 decade ago

    Is it when your rideing and let off the throttle? If it is then you could be running too lean, and you need to rejet your carb

  • CommanderCrusty
    Lv 4
    1 decade ago

    Stop wondering and take it your local dealership and get a tune up!

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