Bad Boy Kawasaki FR651V Mower Quits after 10 Mins

PTmowerMech

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Apr 16, 2018
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The engine starts good, runs great for about 10 mins, then seems like lack of gas and will die, if you choke it before it dies,,,will run fine for maybe another five minutes or more, It seems to run longer with blades engaged and sitting,,,over actually in mobile mode.
the following have been replaced, gas replaced with new gas (high octane), fuel filter, hoses, fuel pump, and complete carburetor....same symptoms, it does not have a miss ,
and has good power. If you are doing your test run , (takes two people) one driving, one walking behind mower...when it starts to loose rpms, and before it dies, yank the breather off and hand choke it, it will recover
with good rpm's and run for another 5 to 10 minutes and then does this over and over...
kinda at a loss,,,,,coils heating up ???, it seems odd that there is no miss and both coils would fail at the same time and since choking it , revives it,,not enough time for coils to cool, if that were the case.
it acts and reacts like the gas flow stops or slows and a quick choke of the carburetor revives it...
I also have checked the holes in the heads (they are clear), where the oil flows in and out of the heads..

Help the Ghost and would like anyones thoughts...

I pulled this out of a fuel line last year.

GasSnake.jpg
 
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