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  #1  
Old 05-15-2021, 07:55 PM
dbuck dbuck is offline
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A LT1045 with an SV600-0009 KOHLER engine. Grandson tells me that it starts just fine, but after mowing anywhere from 5 to 30 minutes the engine starts missing and no power. Shut off the PTO and go to idle it runs smooth, try to give it more throttle and it will not take it wants to die. Before I get into this problem, I would some ideas/advice on what may be happening. Mfg date 6-2006.

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Old 05-15-2021, 08:09 PM
R Bedell R Bedell is offline
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I would look at a Fuel Delivery or Gas Tank venting problem. Take the Gas Cap off and see if that makes it runs better.

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Old 05-19-2021, 07:26 PM
dbuck dbuck is offline
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Originally Posted by R Bedell View Post
I would look at a Fuel Delivery or Gas Tank venting problem. Take the Gas Cap off and see if that makes it runs better.

Thank you for your reply. I will Check both ideas.
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Old 05-20-2021, 07:24 PM
dbuck dbuck is offline
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I drilled a hole, right thru the center of the gas cap, that should take off any venting problem. Mowed for 1/2 hr, it starts popping like it was misfiring. Move the throttle to idle no problem waiting a couple of minutes and went to wide-open throttle ran smooth. Made half a lap and it started doing the same thing. I did the idle and wide open bit and went to the shop. I am totally confused about what's going on. Any ideas/suggestions will be greatly appreciated.

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Old 05-21-2021, 08:23 AM
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ol'George ol'George is online now
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Sounds like lack of flo'
( not Flo from progressive) but fuel flo'
At higher engine speeds you are possibly starving for fuel and your idle break helps it catch up.
Start by checking flo' right at carb. if good, then it possibly has an accumulation of "stuff" in the carb. that needs to be cleaned out.
Also if it has a fuel filter it needs to be addressed.
Drilling a hole in the gas cap was a bad idea as it can allow fuel to splash out.
Also it pisses off the enviro people as your letting "fumes" escape.
if ewe waz in Kalifornea, it would cause Cancer, lucky ewe is in Indiana.
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Old 05-21-2021, 01:35 PM
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Goofus Goofus is offline
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Had JD that did something similar, definitely fuel related. In my case it was gunk in the fuel tank that would slow the flow. The prior owner spent almost $1,000 at the mechanic who never fixed it, so I got it for a song.

Could be a gunk restriction, could be a float problem, could be a semi-plugged filter or weak fuel pump (if'n it has one), could be a sticky valve that only sticks when hot. Start with fuel delivery and work your way down the list. You know, what George said
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Old 09-09-2021, 12:40 PM
dbuck dbuck is offline
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Figured out the problem. Seems somebody decided to add little plastic beads to the fuel tank. I and my grandson have come to a conclusion that it had to be the great-granddaughter she is a little hellion and will try anything to get back at her parents when she does not get her way. Therefore they must have been blocking the pickups in the tank. Pull the tank flushed it out and so far she is running fine.
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Old 09-09-2021, 05:56 PM
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Quote:
Originally Posted by dbuck View Post
Figured out the problem. Seems somebody decided to add little plastic beads to the fuel tank. I and my grandson have come to a conclusion that it had to be the great-granddaughter she is a little hellion and will try anything to get back at her parents when she does not get her way. Therefore they must have been blocking the pickups in the tank. Pull the tank flushed it out and so far she is running fine.
What is running fine?
yer lawnmower or the great Grand daughter, because when you catch her you are going to slap the stupid out of her
Glad you let us know the outcome, it helps udders with similar problems.
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