Spark Plugs

Discussion in 'Mechanic and Repair' started by nickslawn, May 19, 2007.

  1. nickslawn

    nickslawn LawnSite Member
    Messages: 83

    I just bought a used snapper rear engine rider, it beats pushing, and the plug is black. It is a champion j19lm. Its is a 8hp 30"cut briggs. What other plug would you use and why? I know that champion are bottom of the line plugs so I need something that will stand up to everyday use. Yes I know the mower is not commerical but I have been pushing yards way to long.

    Thanks in Advanced!
  2. bobcat175

    bobcat175 LawnSite Senior Member
    Messages: 377

    What's the model# of the engine?....go to the briggs site and look up what the mfg recommends.
  3. pugs

    pugs LawnSite Gold Member
    Messages: 3,025

    Thats the plug that belongs in it. RJ19LM or J19LM.
  4. MuleCutter

    MuleCutter LawnSite Member
    Messages: 212

    use NGK plugs.... should take the B4LM type.
  5. mike green

    mike green LawnSite Member
    Messages: 17

    Idont think the spark plug is the problem its might be the choke sticking or the float maybe set to high could be dirty air filter if it has the carb that you can adjust could be that hope this helps good luck
  6. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    I agree with mike, Carb/Air filter problems.

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