37 HP Kawasaki model FX1000V

Discussion in 'Lawn Mowing' started by Thunderhead, Jan 26, 2011.

  1. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Posts: 12,888

    Every Kawi I've had is just fine and doesn't do the backfiring thing. I drop it back to idle and let it run like that for at least 30 full seconds before turning it off.
     
  2. Triple L

    Triple L LawnSite Senior Member
    Posts: 503

    Me too, myn will backfire good unless it's reved right out and turned off at 3/4 to full throttle, and even then it's touch and go
    Posted via Mobile Device
     
  3. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Posts: 12,888

    That's how my last Kohler was. I can't see a reason the manu's couldn't remedy that.
     
  4. Mickhippy

    Mickhippy LawnSite Platinum Member
    Posts: 4,199

    Youve certainly had great use out of your machine, especially knowing some of the stuff you cut at times.
    Hope the re-con does the job for ya. Whats the re-con costing you?

    How'd you go with the seat?

    As far as the back firing goes, all in all mines been pretty good. I cant always let the engine idle down and rarely get a backfire. I will if, lets say I stop and reach down to pick up a stick and take some weight off the seat, and the engine stuffs off and then back on quickly. Then its like a shot gun going off!
    But yeah, good practice to let it idle for a few seconds before shut down. Sometimes I'll let it idle while I tie it down, then turn it off.
     
  5. StanWilhite

    StanWilhite LawnSite Silver Member
    Posts: 2,072

    I didn't read the whole thread but either turning the engine off at WOT, or opening the throttle to wide open as soon as you turn the engine off, should cure the backfire problem.

    Some people worry about turning the engine off at WOT (for fear of hurting it somehow) but if you think about it, the engine doesn't do anything any differently than it does while running at WOT....other than not having a spark to ignite the gas/air mix.

    The purpose of the WOT throttle position at shut down is for the momentum of the engine to force the remaining air/fuel out of the muffler so it can't ignite (which causes the backfire).
     
  6. Choppin

    Choppin LawnSite Senior Member
    Posts: 627

    Yep I agree...
    Posted via Mobile Device
     
  7. banjo

    banjo LawnSite Member
    Posts: 57

    For the last 6 months mine has been shutting down using the electric fuel shutoff, takes 4 or 5 seconds but alway's shuts down quietly so i'm happy. I would think shutting off with revs on would see unburnt fuel entering the bores washing the oil off the rings etc and contaminate the oil in the sump. I got that sick of the backfire when picking up sticks from the seat, disconected the seat switch, good now. Yes Mick got my new seat $605 but came without armrests, its the same seat as my old Everide so i'll pinch armrests off it.
     

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