Kaw 15hp with a miss

Discussion in 'Mechanic and Repair' started by Pathfinders Lawncare, Jul 20, 2006.

  1. Pathfinders Lawncare

    Pathfinders Lawncare LawnSite Member
    Posts: 8

    Need help for my WB power plant. About a month ago my motor developed a miss. I checked and replaced the fuel filter, plugs, air filter, and fresh gas (premium). The miss and some backfire would come and go irregularly. Today it's back without letup. A quick stop at one shop gained a - could be bent push rod. Another shop said no guess. Any help?
     
  2. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    How about reading the third thread in this forum and post some model and spec. numbers, That would help. How many hours you figure are on this engine ?
     
  3. khouse

    khouse LawnSite Bronze Member
    Posts: 1,465

    i don't think it's a push rod. have you checked for water in the tank and/or carb bowl?
     
  4. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    Like Rob Stated needs some model #'s and hours on engine, What plugs where installed and what is the air gap set to? Also may need valve adjustment since kawi requires one every 300hrs.
     
  5. Jim@MilkyWay

    Jim@MilkyWay LawnSite Senior Member
    Posts: 472

    A'squeeeez Me;)
    Is this true for all Kaws? I have two ten-year old fc420V,s (not commercial) which I am embarrassed to say I have never adjusted valves on.
     
  6. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    No not for all Kawi's but he stated he has a 15 hp and that should be a V-twin motor and they require valve adjustments every 300hrs. As for you 10year old FC420V I would do one with your next tune up could'nt hurt the valve spec cold is .006" :)
     
  7. Jim@MilkyWay

    Jim@MilkyWay LawnSite Senior Member
    Posts: 472

    Thanks MM77 for both the heads up and the valve spec.:walking:
     
  8. Norm03s

    Norm03s LawnSite Member
    Posts: 1

    FC420V valve gap .006, Thanks
     

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