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hard starting 15hp kaw

Discussion in 'Mechanic and Repair' started by SimonCX, Oct 30, 2006.

  1. SimonCX

    SimonCX LawnSite Senior Member
    Messages: 731

    Anyone know what could be wrong lately it takes more and more pulls to get it started when it's cold. Before it would start 1 to 2 pulls, now it's 7 -10 pulls. The machine is only 2.5 years old, around 200-250 hours. I checked the air filter, spark plugs look ok but have never been changed, choke is adjusted right. It seems to idial rough when started at low rpms. Any input?
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    First thing I would do is replace the plug(s) and start at half throttle, If that doesn't do it may be time to tear the carb. down and give it a good cleaning with carb. & Choke spray cleaner.
  3. sjessen

    sjessen LawnSite Platinum Member
    Male, from Knoxville, Tn
    Messages: 4,275

    You stated that the choke was adjusted correctly. But, are you sure it is closing all the way? That is usually the reason a kaw becomes hard starting.
    ericg likes this.
  4. SimonCX

    SimonCX LawnSite Senior Member
    Messages: 731

    I looked at the choke and I did notice it wasn't closing all the way, adjusted it and it started right up. Hopefully that's all it was, I'll know tomorrow after it sits all night and gets cold. I did notice the spring that keeps tension on the choke adjustment screw is alittle weak and is not holding tension very well so it might be unscrewing.
  5. wasmeneh

    wasmeneh LawnSite Member
    Messages: 40

    I had a Honda that was a bear to start, 6-10 pulls. Had the same problem, choke was not closing all the way, fixed 1st time evertime.

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