Vapor Lock - 21" Toro Proline /Kawasaki

Discussion in 'Lawn Mowing' started by dbrody, Mar 3, 2003.

  1. dbrody

    dbrody LawnSite Member
    Messages: 4

    I have the Toro 4 cycle Kawasaki with blade brake clutch. Great mulcher. Starts 1st pull.

    The only issue I have had with it is when the temperature gets hot (85-90) it appears to vapor lock - runs very rough or not at all.
    On cooler days it runs great! Any thoughts??

    Anyone else have this happen??

  2. imalandscper

    imalandscper LawnSite Member
    Messages: 185

    Does it have a vented gas cap? if so is it plugged maybe?
  3. Premo Services

    Premo Services LawnSite Bronze Member
    Messages: 1,516

    Yup, a new cap did it for me. But a mechanic told me to not tighten it so much, and if it did start messing up take thew cap off and it will help out. I bought a new cap and no mo problems.
  4. Organix

    Organix LawnSite Member
    Messages: 113

    hmm mine ran fine in over 100 degree weather but sometimes started hard when temps went into 30's.

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