Tractor Forum > Lawn Garden Tractors > Murray > Carburetor Mixture Adjustment problem


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Old 07-17-2011, 08:45 AM   #1
bripatch1
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Carburetor Mixture Adjustment problem

New problem with 14.5 Briggs and Stratton engine swap at Bripatch1.
Having most of the start up issues solved I was happy to report that
the motor was" alive" and runs without stalling out. That's still true but
although I can drive this tractor around the yard, it quits as soon as I
engage the mower deck.
I replaced the idle mixture screw with another one which I grooved with a Dremel so I could use a slotted head screw driver for adjusting it. (and left the plastic limiter cap off). Then ran the engine for 5 minutes and reset the idle and mixture screws by the B&S book.
When the engine quits it can be started right back up but does not seem to get enough RPMs to power the deck. When I shut it down with the kill switch it dies with a "pop".
My first thought was to get a new mixture screw but unfortunately it had to be placed on backorder with the local supplier(s). My question is
am I on the right track or is there something else going on that I should be aware of? Advice appreciated, Regards, Bripatch1


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Old 07-17-2011, 10:16 AM   #2
TecumsehBriggs
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Are the deck spindles free? If you have a frozen spindle, it will kill the engine. I have one that's doing that right now. I'll be replacing the spindles today, I hope.


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