25 Hp Kawi Hard to start

Discussion in 'Mechanic and Repair' started by Dstosh, Feb 17, 2008.

  1. Dstosh

    Dstosh LawnSite Senior Member
    Posts: 716

    Ive got a Lesco Z-Two with a 25 hp Kawi, It has less than 1000 hrs on it. It is becoming increasingly hard to start, It seems like you have to crank it for 5-10 minutes to get it to start. It seems to get worse as the weather gets colder out, During fall clean ups, it was a ***** to start. I put a new battery in the fall, 425 CA. Is there any common problems with these engines? I thought I read somewhere that the coils went bad, Any Help is appreciated. Thanks
     
  2. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    How many valve adjustments has this engine had? Kawi recommends every 300hrs as part of normal maintenance. Also check that your choke is closing completely during start up.
     
  3. Dstosh

    Dstosh LawnSite Senior Member
    Posts: 716

    Zero Valve adjustments. Thanks for the tip. I am going to tackle it this week.


    How hard is it to adjust the valves?
     
  4. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

  5. Dstosh

    Dstosh LawnSite Senior Member
    Posts: 716

    Better Late than never. I pulled a couple numbers off the motor.

    Code fh712v-cs26-r

    Engine Number Fh721vb39185

    Let me know if that is what you need MM. Thanks
     
  6. Landrus2

    Landrus2 LawnSite Platinum Member
    Posts: 4,811






    Hello there from New York.

    So your Kawasaki engine is given you problem’s I don’t tking the coil is your problem you mention on cold whether gets worse.

    Ok this is what I would do first in winter I would run Mobil one 10w30 synthetic.

    Second I would check your choke linkage that is most likely where your problem is.


    I would levee the valves for last.:waving:
     
  7. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Posts: 1,164

    Adjust cold @ TDC (.003-.005) both intake and exhaust and the valve cover gasket # is 11060-7013 MSRP is $2.55 each.

    Good luck and let us know how it goes.:)
     
  8. Dstosh

    Dstosh LawnSite Senior Member
    Posts: 716

    Going to try and tackle this next week. What is the best way to find TDC? My buddy said there should be a mark on the flywheel, but I wasnt sure.


    Thanks
     
  9. I MOW ALONE

    I MOW ALONE LawnSite Bronze Member
    Posts: 1,902

    are you 100% sure the choke is closing fully ?
     
  10. 02DURAMAX

    02DURAMAX LawnSite Gold Member
    Posts: 3,804

    I may need to get my valves adjusted..
     

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