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  1. #1
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    Default Need help with '86 Virago 1100 only firing on one cylinder

    My '86 Virago is running on the number 2 cylinder. The spark plug in the no. 1 cylinder has spark, and there is gas flowing to the carb, but no gas is getting to the cylinder. The float doesn't appear to be stuck. If I put gas through the vacuum test port, the cylinder fires with no problem. Anyone have any ideas?

  2. #2
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    Try cleaning the carbs. Also check the intake manifold for that cylinder, It might be split causing a big vacuum leak.

  3. #3
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    do you have vaccume controlled petcocks? possibly one of the carb boots cracked or another type of vac leak

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    Cylinder isn't cracked, Going to clean the carbs, hopefully that works.

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    Been looking for vacuum leaks, but haven't found any so far. I'll keep looking though.

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    You can tell if the intake boot is cracked unless you take off the metal cover thats on it. Mine has metal over the rubber.

  7. #7
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    Default New problems

    Ok, I pulled and cleaned the carbs. Everything was in order inside, no cracks, dings, folds, nothing. Put the carbs back in. Now it starts on both cylinders, but won't stay started. The start "circuit" on the carb works, but the run "circuit" doesn't.

    Maybe it's time for target practice?

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