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spark plug

  1. D

    Diagnosing misfiring issues on a 1979 1000SP

    Hey folks! Great to be here. I like being hands-on with motorcycles but I'm breaking new ground with respect to working on an engine and carbs. Please excuse my lack of knowledge; I'm learning as I go along. When my 1979 1000SP arrived from across the country, she was in non-running condition...
  2. Marco_Guzzi

    "Get a Guzzi" they said..."It'll be fun" they said...

    Hi all, I'm new here, thanks for adding me... powers that be. Sorry if my first post is long winded, but I have a tale to tell... This story actually starts with a 2016 Harley-Davidson Street Glide that I bought as a wrecked / totaled bike, and then rebuilt (beautifully I might add!) and...
  3. D

    One sooty plug with backfiring and poor low speed running

    Hi All My 2011 Stelvio NTX 8V has developed a sooty LHS spark plug. i've swapped the plug and the problem stays with the LHS. Diag is kicking out P0130 and P0141 fault codes, both lambda related but I'm thinking this could be a result of the rich running and not the fault itself. Everything...
  4. Mumbufuku

    Excessive vibration at all engine speeds.

    My 07 norge shakes like a harley at idle. It also seems to be running a bit rough between idle and 3k rpm. I dont know if the inner spark plugs have ever been changed. (30k on engine) The only reason I'm complaining is that the vibration is so bad it's making my hands go numb while riding. Is...
  5. M

    1980 1000SP jump started with car

    Hello... I was recently given my grandfathers 1000SP... It had a bad battery and when it died on me one day, I ignorantly tried to jump the bike with my wifes car and something started to smoke when I tried to start it (still kicking myself). I pushed it home, got a new battery and now it won't...
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