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Joined: Nov 2017
Posts: 1,963 Likes: 7
8 point
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8 point
Joined: Nov 2017
Posts: 1,963 Likes: 7 |
I have a weird one.
Mower has a Kawasaki fx730 and it starts to die about 10 min into mowing tall grass. It acts like it overheats because it will crank back up if I let it sit for a min or two. Any ideas?
If I go full choke once it start dying, it will keep it from dying for the most part but you can tell the power is lacking.
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Joined: Jan 2014
Posts: 1,222
8 point
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8 point
Joined: Jan 2014
Posts: 1,222 |
I'd suggest checking the air filter. My mower has a kawasaki also, a few years ago, it acted like it had no power, would really die going uphill. A new air filter solved my problem.
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Joined: Nov 2017
Posts: 1,963 Likes: 7
8 point
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8 point
Joined: Nov 2017
Posts: 1,963 Likes: 7 |
I'd suggest checking the air filter. My mower has a kawasaki also, a few years ago, it acted like it had no power, would really die going uphill. A new air filter solved my problem. I’ll check that out. I was thinking coil packs at first but then I realized it’ll keep going if I give it full choke so now I don’t know what to think with it. May be a normal thing but grass is tall, but not thick enough that I think it should overheat the mower.
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Joined: Aug 2014
Posts: 14,395 Likes: 4
Gary's Fluffer
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Gary's Fluffer
Joined: Aug 2014
Posts: 14,395 Likes: 4 |
What frogeye said. It’s bogging down due to incorrect fuel/air mixture.
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Joined: Mar 2013
Posts: 15,167 Likes: 7
Old Mossy Horns
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Old Mossy Horns
Joined: Mar 2013
Posts: 15,167 Likes: 7 |
Would walk over a naked woman to get to a gobblin turkey!
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Joined: Sep 2014
Posts: 1,519 Likes: 8
8 point
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8 point
Joined: Sep 2014
Posts: 1,519 Likes: 8 |
I would change the fuel filter, if it hasn't been done lately.
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Joined: Mar 2012
Posts: 2,524
10 point
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10 point
Joined: Mar 2012
Posts: 2,524 |
Sounds like fuel filter isn't letting enough fuel through. After it kills, bowl fills back up.
"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." Thomas Jefferson
"I ask, who are the militia? They consist of now of the whole people, except a few public officers." George Mason
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Joined: Aug 2007
Posts: 624 Likes: 1
4 point
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4 point
Joined: Aug 2007
Posts: 624 Likes: 1 |
Try taking the gas cap off. The check valve in mine went bad. It would make a lap and cut off. Wait a minute and crank back up. I drilled a sixteen inch hole in the cap,and it’s been running ever since.
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Joined: Oct 2001
Posts: 3,585 Likes: 6
10 point
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10 point
Joined: Oct 2001
Posts: 3,585 Likes: 6 |
I just worked on a buddy of mines Exmark and chased my tail around for a week. Acting like a fuel issue sometimes, or a heat issue, then maybe an electrical issue. Ended up being the kill switch on the seat. Basically, did a hero kit. Had recently done service, oil/air/fuel filter, new blades. Would run but would stop intermittently. Had to choke it to get it fired back up. So, we put a new fuel pump and cheap chinese carb from Amazon on. Still issues. Changed out the parking brake switch. Still an issue, then the seat switch and that remedied it. Really odd.
I would do the air filter first, but if that don't get it, do the fuel pump and fuel filter.
If Caitlyn Jenner can keep his wiener and be considered a woman, I can keep my guns and be considered disarmed!
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Joined: Nov 2017
Posts: 1,963 Likes: 7
8 point
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8 point
Joined: Nov 2017
Posts: 1,963 Likes: 7 |
It has dual tanks and it’s an issue that I’m 99.9% sure has happened on both tanks. It started doing it last year but I just never got around to changing the coil packs to trying to fix it. It does fine when I’m mowing the 2 acres or so I do regularly. There’s just another 4 that I do every third time or so. I’m going back out to try in a couple hours and I’ll try to loosen the cap of it starts dying on me and get a new fuel filter if that doesn’t do the trick
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Joined: Jan 2017
Posts: 5,760 Likes: 75
12 point
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12 point
Joined: Jan 2017
Posts: 5,760 Likes: 75 |
Try taking the gas cap off. The check valve in mine went bad. It would make a lap and cut off. Wait a minute and crank back up. I drilled a sixteen inch hole in the cap,and it’s been running ever since. That's a really big hole 
"It is the mark of an educated mind to be able to entertain a thought without accepting it"
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Joined: Mar 2005
Posts: 5,967 Likes: 96
Skinny's Property
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Skinny's Property
Joined: Mar 2005
Posts: 5,967 Likes: 96 |
Sounds like coil issue. When Ive had Kawaski engine issue like that its almost always a bad coil.
Last edited by Bulls eye; 07/14/24 12:02 PM.
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Joined: Nov 2017
Posts: 1,963 Likes: 7
8 point
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8 point
Joined: Nov 2017
Posts: 1,963 Likes: 7 |
Sounds like coil issue. When Ive had Kawaski engine issue like that its almost always a bad coil. That’s what I was thinking til I could keep it going by playing with the choke. I already got the new coil packs sitting in the garage. It’s just been on my never ending to-do list
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Joined: Aug 2007
Posts: 624 Likes: 1
4 point
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4 point
Joined: Aug 2007
Posts: 624 Likes: 1 |
Yeah I wanted that thing to “breathe “ lol
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Joined: Nov 2005
Posts: 8,507 Likes: 124
14 point
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14 point
Joined: Nov 2005
Posts: 8,507 Likes: 124 |
I have a weird one.
Mower has a Kawasaki fx730 and it starts to die about 10 min into mowing tall grass. It acts like it overheats because it will crank back up if I let it sit for a min or two. Any ideas?
If I go full choke once it start dying, it will keep it from dying for the most part but you can tell the power is lacking. Mine did that. In my case it was water in the gas. Drained and filled with non ethanol. Guy at the gas station said water will start forming in 9 days with ethanol based gas. Good luck
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Joined: Nov 2017
Posts: 1,963 Likes: 7
8 point
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8 point
Joined: Nov 2017
Posts: 1,963 Likes: 7 |
Just tried again and made it 30min til it started again. I loosened the gas cap all the way and it didn’t help at all. Going to try fuel filter and coil packs next.
I don’t think it’d be water in the gas since I use the non ethanol towards the end of season when I know it’s going to sit for an extended period of time and I usually run the tank dry before switching to the other side to make sure I’m keeping the gas fresh. It also doesn’t happen with my average mow. Just when I keep it under a decent load for 20-30 min.
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Joined: Dec 2018
Posts: 1,176 Likes: 13
6 point
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6 point
Joined: Dec 2018
Posts: 1,176 Likes: 13 |
That’s textbook symptoms for a failing coil.
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Joined: Nov 2011
Posts: 5,815 Likes: 39
12 point
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12 point
Joined: Nov 2011
Posts: 5,815 Likes: 39 |
That’s textbook symptoms for a failing coil. yep ingnition coil
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Joined: Dec 2014
Posts: 9,111 Likes: 35
14 point
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14 point
Joined: Dec 2014
Posts: 9,111 Likes: 35 |
I had a similar issue…but it was on a kohler…only thing that fixed it was sellin it an buyin another mower…no issues since
"I dont quit.. And ill fight alone if i have to"
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Joined: Jun 2012
Posts: 425 Likes: 1
4 point
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4 point
Joined: Jun 2012
Posts: 425 Likes: 1 |
Im pretty sure i have the same engine on my scag. I would try the fuel filter first. Mine was doing the exact same thing. Finally narrowed it down to the fuel filter. Had the slightest crack in it that you had to look at close just to see it. Fixed my problem
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