Kawasaki FH500V smoking at start up

Discussion in 'Mechanic and Repair' started by Doublewide6, Oct 12, 2012.

  1. Doublewide6

    Doublewide6 LawnSite Member
    Posts: 203

    So my engine has 1200hrs. It smokes at start up for about 10 seconds. Once warmed up you do not see any smoke, and the engine runs nice, but I can smell the oil burning slightly when it runs. What is the usual cause for burning oil and how can I try to fix it? Thanks
     
  2. kawakx125

    kawakx125 LawnSite Bronze Member
    Posts: 1,124

    worn piston rings or valve seals are the most common culprits usually
     
  3. Doublewide6

    Doublewide6 LawnSite Member
    Posts: 203

    Is there a way to hone overhead valves by hand with valve grinding compound? Is this a problem that needs to be addressed or can the engine run fine as long as I maintain the proper oil level. It doesn't seam to be going through oil really fast and I keep my eye on it. Thanks for your help
     
  4. piston slapper

    piston slapper LawnSite Platinum Member
    Posts: 4,240

    Could be something as simple as a blown headgasket.
    Check your compression and sparkplug condition..do a leakdown test..
    As long as you keep an eye on the oil level you can run it till it is a mosquito fogger...
    Posted via Mobile Device
     
  5. kawakx125

    kawakx125 LawnSite Bronze Member
    Posts: 1,124

    just keep an eye on it you'll be fine. at 1200 hrs using a little oil isn't uncommon
     
  6. Doublewide6

    Doublewide6 LawnSite Member
    Posts: 203

    Thanks for the help so far. I checked the plugs they both looked about the same (a little bit more black then brown). Looking in spark plug hole, the top of the pistons looked shiny black. The engine fires right up, so is that a sign the valves are sealing correctly? I am going to do a compression test and leak down test and see if there is any big difference between the 2 cylinders. I don't know how to change out the rings.
     
  7. kawakx125

    kawakx125 LawnSite Bronze Member
    Posts: 1,124

    it would basically require a rebuild of the motor...not really worth it IMO if its only using a bit of oil but still running good.
     

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