Question about John Deere 42" Hydraulic-drive Rotary Tiller For X540

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X540 backfires when angage lawn mor for few times

When angage lawn more blades backfires

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Lawn mower sopped running when I engaged blade.wont restart!loud explosive backfire 5 to 10 seconds when trying to restart. doesn't sound like normal backfire


sounds like the flywheel shifted. Was the blade bound up with grass or something? The Keyway on the Crank may have broken and the flywheel shifted. That would throw off the Timing

May 27, 2015 | Cub Cadet Garden

1 Answer

It there a timing mark for a toro lawn mower gts195cc?


Usually there is not. The timing is through the flywheel that connects to the crankshaft and it is permanently set with a woodruff key. When evereything is tight, the timing is good. IF you hit something and cause the blades to stop, the flywheel can move and twist on the shaft and bend the woodruff key. The engine then wont start or will backfire etc. To fix this you need to pull the flywheel off the crankshaft and replace the woodruff key and reinstall it.

Mar 31, 2014 | Toro Garden

1 Answer

Ariens 21 backfiring but not starting


IF IT RAN AND now it doesnt
not waiting a year or so before trying
check flywheel key
you can check blade if its bent then key more than likely is sheered

Oct 10, 2013 | Ariens Garden

1 Answer

17.5 briggs motor back fired 1 time and now when i engage blades the motor boggs down


The engine is timed internally and externally. Sometimes when it backfires the external timing key where the flywheel and crankshaft join will be damaged enought to put the engine out of time. The engine may run but when put under a load such as cutting grass it will fail. This is about a 30 minute repair and about $2.00 in parts.

Jul 18, 2012 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have a 21 HP Kawasaki on a 2007 Toro zero turn.Lately when I push the throttle forward the engine backfires and it will also backfire when I engage the blades it also backfires a lot louder when I shut...


the best thing to do is to clean or replace carb filter.. check spark plug for fouling clean or replace also if gas has been sitting in unit and stored outside I would drain gas because of water contamination..

May 26, 2012 | kawasaki Fh641v 21hp 21 Hp Riding Lawn...

1 Answer

Briggs & stratton backfires & breaks flywheel key on starting


Be sure blades turning easy, one of spindel may have a bearing out or going out.

Nov 26, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

2 Answers

Does the blade need to be on for my 6.5hp self propelled toro mower to start? It keeps backfiring and the blade key is striped.


I am not familiar with this model. However, just about all lawn mower engines rely on the blade to act as a flywheel, a very important factor in engine operation.

I hope this helps you ...

Thanks for your interest in FixYa.com

Jul 13, 2011 | Toro Garden

1 Answer

I have a briggs and stratton 14 hp ohv engine on my murray lawn mower it starts and runs good until i go to full throttle or engage the blades then it seems to flood out and start backfiring i can lower...


It sounds like you are putting it into choke mode. The choke is usually all the way up on tractors. And it will make it backfire and flood out. Just rev it high enough to work and don't go into the choke mode. hope this helps.

Apr 21, 2010 | Poulan 38-Inch Steel Deck 15.5 HP Briggs &...

1 Answer

Motor backfires


Hi,
It sounds like your engine is firing out of time.
Here is a link to the manual for your engine. It does contain some good info and I hope it will help you to solve this problem.

http://www.gardenresources.co.uk/content/garden_machinery/manuals/husqwm227_hwen2002_0000000-01.pdf

Best of luck!

Aug 31, 2009 | Garden

3 Answers

Engins starts and runs when mowing will backfire and stall.


I am not sure what time of lawn mower this is, but if the blade is directly tied to the motor, usually the belt will just slip if not, but if this is directly connected to motor, it might have jumped timing. If this is not the case, inspect under the mower deck, and determine if there is something jamming the blades against the deck or if their is something bound around the blade, this can cause more strain on the motor, which could result in the symptoms your experiencing.

Aug 05, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

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