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When I lower the mowing deck on my Murray 17.5hp riding mower white smoke pours out and it dies. The engine runs fine until the deck is lowered.

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Lowering the deck is putting pressure on the motor itself,, be sure and have the RPM's on the motor high when you do this to engage the blades,, also,, be sure that nothing is binding in the mowing deck itself that would put added pressure on the motor,, these units should be greased and cleaned after each use

Posted on Aug 02, 2010

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Does it make a squealing noise then too? The white smoke is probably a belt burning up. Either you have a locked up blade spindle, or the belt is off, and rubbing. Check the deck belt(s) and the clutch assembly.

Posted on Aug 02, 2010

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I need help putting rear end back together on a 10 hp30 Murray riding lawnmower


Safety and Preparation Serious injury can occur if the engine or mower blades accidentally start while you are working with lawn tractors. To prevent this, drive the Murray lawn tractor onto a flat work surface and disengage the mowing deck cutting blades. Engage the parking brake to keep the mower from moving; chock the wheels with a wooden block or brick. Adjust the mowing deck to the lowest position. Turn off the engine and remove the key from the ignition. While not necessary, you may even wish to disconnect the spark plug wire from the spark plug. Mowing Deck Removal You must remove the mowing deck on a Murray lawn tractor to gain access to the belts. Remove the adjustment rod hairpins, followed by the adjustment rod pins from the front left and right sides of the mowing deck. At the rear on the left and right sides, pull out the retaining hairpins and slide the mowing deck suspension links from the adjuster plates to separate the rear mowing deck from the frame. Remove the blade control rod stud, including the hairpin and washer, from the top of the blade control lever shift linkage at the left rear of the deck. Remove the front hanger rod, including the hairpin and flat washer that hold the rod in place. Loosen the belt guide retaining bolts with a socket wrench and remove the engine stack pulley belt so you can slide the mower deck out from under the tractor Transmission Drive Belt Installation Slide the new transmission drive belt between the engine stack pulley belt guides, over the belt guide plate and under the engine stack pulley. Fit the transmission drive belt around the top engine stack pulley. Push the free end of the transmission drive belt up through the transmission shifter hole in the lawn tractor floorboard. Slip the transmission drive belt loop over the transmission shifter. Pull the transmission drive belt down through the transmission shifter hole. Fit the transmission drive belt around the transmission drive pulley and tighten the transmission drive pulley belt guide retaining bolts to hold it in place. Fit the transmission drive belt flat side around the idler pulley. Slide the idler pulley onto the idler pulley stud while holding the belt in place. Tighten the transmission idler pulley retaining nut with a socket wrench to secure the idler pulley to the idler pulley stud. Mowing Deck Drive Belt Installation Pull back on the right side mowing deck mandrel pulley spring-tensioned belt retainer. Guide the new mowing deck drive belt around the right side mandrel pulley and release the belt retainer. Pull the drive belt spring-tensioned retainer away from the mowing deck idler pulley, guiding the deck drive belt around the idler pulley. Fit the mowing deck drive belt around the left side mandrel pulley and under the rear mowing deck cross link rod between the right and left side mandrel pulley. Slide the mowing deck under the right side lawn tractor frame, reconnecting the deck to the frame in reverse order of removal. Engage and disengage the mower deck while driving the mower to test the belt for proper operation.

Sep 28, 2016 | Murray Garden

1 Answer

Why does the engine die when I lower the mower deck on my Murray lawn tractor?


I would check your belt tension and make sure that it is not too tight.
If you have the manual, try the trouble shooting section for further information.

Aug 28, 2014 | Murray Garden

1 Answer

42 murray mower deck TROUBLESHOOTINGmanual


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It sound like pto or safety switch may be shorted. Hope this helps.

Jul 31, 2013 | Garden

1 Answer

Motor dies when i lower the blades


first you need to check under deck to make sure nothing is caught in blades like a stick or plastic wrapped around them

May 16, 2012 | Husqvarna Riding Lawn Mower 42 Inch Cut...

1 Answer

White smoke coming out of mower


It sounds as though you are losing power (electrical power); see if charging the battery fully allows it to run longer or if charging the battery helps.

Jul 15, 2010 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

1 Answer

Blades slow down when cutting deck is lowered.


the lowerer the deck the more your working the mower. either mow more often or reduce speed

Oct 22, 2009 | Garden

1 Answer

I have a Murray riding lawn mower Model 425600x8A. Recently, my son and I were using it to mow on a hill when it starting putting out a thick white cloud of smoke. We shut the engine off and let it cool...


The oil entered the cyliders when the mower was tipped at a severe angle. It will clear out after you run it for awhile. Check the oil level to make sure it is full. It could even be overfull and this is what caused the smoke. If it starts to run badly, check the spark plug or plugs. They could get "fouled" from the oil. Change the if the are black or covered with oil. It shouldn't have done any damage to the engine.

Jun 23, 2009 | Garden

3 Answers

Craftsman riding mower starts, then runs for 30 seconds, then pours out white tons of white smoke and sputters and dies. It will then re-start and repeat the same. The amount of smoke is tremendous. It...


The smoke is oil going in to the combustion chamber, will have to check for broken rings or piston. also if the tractor was stored in a position that the oil would run to the combustion chamber it will do that untill all the oil is burn

Mar 22, 2009 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

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