Question about Husqvarna Chain Saw 20" Bar

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Loss of power uphill - 24 hp 54 " deck - Recent change of air cleaner and oil change. runs and starts fine, lacks powere and loads up going uphill even when not mowing!

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  • ProHydroRace May 11, 2010

    Have youchanged the Spark Plug?

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Check the valve clearances--if they are tight, the added heat of climbing will close the clearance to the point that the valve(s) quit sealing causing loss of power. Check the spark plug(s)--should show a medium brown on the interior insulator(s). Make sure the muffler is not plugged. Check the engine ventilation--grass clippings and dirt can choke the air flow. Make sure the wheels turn freely.

Posted on Sep 12, 2009

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Posted on Jan 02, 2017

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2 Answers

Losing power


I take it its a Briggs motor
It sounds like 2 possibilities
1 possible half sheared flywheel key causing out of time conditions
2 carb is dirty not due to your new gas filter but dirt through air inlet and needs to be taken off diassembled and cleaned (carb cleaner and determine all jets and small orfice holes are clean.

Aug 09, 2014 | Craftsman 24 Hp 48" Deck Yard Tractor

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Van has been loosing power going up hill. Runs fine on level land and going downhill. lately it has been stalling when u first start it up.


try checking your crankshaft or tps throttle position sensor it could cause you to lose power at times

Apr 02, 2014 | 2005 Kia Sedona

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Power loss going uphill


Hi there
Try changing your garage for fuel 1st thing.
2nd check air cleaner for something restricting airflow also exhaust for the same as it sounds like lack of AIR.

Feb 10, 2014 | 2003 Ford Explorer Sport Trac

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Describe your 20 Hp 42"


The float an needle are stuck open causing the fuel to drain from the tank or be pumped by the fuel pump into the carburetor bowl, filling it and flooding the engine and filling up the air cleaner. You may even find that it has gone into the crank case sump contaminating the oil. Do not run until you have repaired the carburetor and changed the oil and if air filter got contaminated, that changed too.

I hope this is helpful for you.

Aug 18, 2011 | Craftsman 20 Hp 42" Deck Lawn Tractor

1 Answer

How do i get the oil change display to stop flashing on a craftsman 24 hp lawn tractor


Hi it will self cancel after a further two hours of running time. Hope this helps, regards Phil.

Aug 08, 2011 | Craftsman 26 Hp 54" Deck Yard Tractor

1 Answer

Lawnmower looses power. Sounds like it is running on one cylinder. Have changed spark plugs, air filter, gas filter, drain gas, pulled fuel cylinoid from bottom of carbarator and drained. Replaced and...


Hi, first check the oil. If it smells like fuel, change the oil. Secondly if oil smells ok, check the valve clearances and adjust if incorrect. Let me know if the oil smells like fuel and I will help with a fix to stop it happening again. Regards Phil.

Aug 05, 2011 | Craftsman 26 Hp 54" Deck Yard Tractor

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My engine has loss power I have changed all filters and oil clean spark plug and have checked muffler. Still same problem What do I check next. Its a sear 17.5 hp lawn tractor


If it has a two cylinder B&S engine I would trying running it alone one one cylinder and then the other. This can be done simply by pulling off one plug wire starting the engine and then do the same with the other plug wire pulled. It is not rare to get bent valve push rods on these engines and a bent valve push rod will kill its cylinder causing lack of power. If it runs with one wire off, but not the other then you are on to the problem.

Oct 25, 2010 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have a 2007, 6500 Craftsman tractor with 26 hp engine (kohler) that won't start. The tractor was running (old gas) when we got off it for a few minutes then went back to start it again but it would not...


First check fuel shutoff valve on bottom of carb . Disconnect and remove , clean witn carb cleaner and be sure there is power at wire when the key is on . Also clean carb jets and bowl .....

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Craftsman DGS6500 Garden Tractor 24 HP Kohler engine. Messages says CH6 Oil - what does it mean? Oil is full and new.


It means change the oil. It will come on every 50 hours regardless when the oil was last changed, then go off after a few hours.

Aug 28, 2010 | Craftsman 26 Hp 54" Deck Yard Tractor

2 Answers

Mower backfires and loss of power


i would also check fuel flow. pull the gas line from the carb and see if gas flows out at a good rate (into a metal can of course) or if it trickles out. if the latter, then gas tank either has junk at the bottom preventing the gas from flowing or the vent hole (usually on the gas cap) is plugged.

i have also had my carb float bowl rust out on me, but that took 10 years.

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