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Repair guides and support for riding lawn tractors sold under the Murray brand name, currently owned by Briggs & Stratton.

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Motor does not turn over all the way.

We replaced the starter,battery,fresh fuel and seniold. When we try to start it trys but enough to kick over.

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wendy, does it turn over with the spark plug removed. I know it wont start, but wonder if it turns over....could you provide more info about the mower? what model is it and what engine does it have?

We replaced the battery cables and still wouldnt turn all the way over. My husband says that it does not spark. Do you have any other suggestions? Model number 309304x8 Murry 11hp briggs

Make sure the ground is clean where it attaches to the frame. It should be free from dirt, grease and rust. Replace the spark plug with new.

check fuse, check solenoid, possibly take cover off fly wheel and lightly sand magnetto and coil, regap coil with a business card

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First off, there was a recall on those mowers due to leaking gas tank. For that check check on here. Now lets assume this got fixed;-) You need at least three things for the mower to start. Fuel, air, and a spark. Check for gas, clogged filters and collapsed lines. Check your carburetor, make sure your float is working right and that your needle valve is clean. Check all the lines for leaks and proper connection. If you are sure you do not have spark, then disconnect the Shut Off Wire at the Control Bracket and then check for spark at the Plug. If there is still no spark at the Plug, disconnect the Shut Off Wire at the Coil and check for spark. If you should still not have a spark, it is possible that your coil/or the ignition module is Bad. You can check and see that the Coil/Ign Module to flywheel gap is .020in. If you get spark at the Plug anytime during these checks, then a Safety Switch or Wire May be the Problem. The engine will turn over with a bad safety switch but will not fire. There should also be a blade safety switch, that you do not want to forget to check as well as the seat safety switch. To really isolate what is going on, I would disconnect the safety switches, bridge the wires. That way, you should be left with just the ignition circuit. If you now get spark, you know that it is one of the safety switches. reconnect one at a time and see which one causes the failure. Replace the safety switch. DO NOT OPERATE THE EQUIPMENT WITHOUT THE SAFETY FEATURES. Check the electrical diagram and see if that will help you further along. Good Luck and let us know how it is going.

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Thank You for all your help. I was finally able to get it started after all that checking, looks like it was the Magneto Coil. When I put it in it started right up like new agian. Thanks alot.

Great job in fixing it. Thanks for accepting my answer. All the best to you...:-)

Do you by chance have the belt diagram for that model?

Which wires do u connect to by pass sensors and where? Got fire and got fuel but won't start

my mower starts but as soon as you let off brake it stalls,also when engaging blades it stalls.

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Wendy,

Try replacing the battery terminal wires on both the ground and the positive of the battery (black and red wires) with new. Current is not always able to flow through old, deteriorated or frayed wiring. That is the only link in the chain so far that you have not replaced.

After that you may try cleaning your battery posts and terminals with a "post and terminal" cleaning tool.

Let us know if that works or if it is a different problem.

Good luck,

Frank

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+ I've also seen stranded battery wire that the corrosion has migrated into the interior wire. It was weird cutting into the outer covering and finding corroded wire way into the covered wire

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murry 30"riding mower, hit a rock with blade while running, engine died, now when l try to start it will do nothing, no click or sound at all? where would l start to look?

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Evidently the silenoid is bad, my husbsnd wants to bypass it becsuse it will run when screw driver is placed across those screws. I realize this is not optimum but can it be bypassed

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it is highly unsafe due to the amount of exposed metal but yes it is possiable

Ok so I got the 15hp tech riding lawn mower (Murry) I get on push clutch set brake , tried to start it turned over , but it now on 2nd try it tries but seems something is stopping it , I can spin main front pully and again tries even got more turn over but something is not letting it fully crank, its like it's locked

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Hi! I have a question. If somebody speak spanish it will be better.

I changed the battery and the spark plug. When I try to turning on.. the engine does not rotates completely, but if I remove the spark plug the engine rotates. What can be the problem???

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sounds like you would have a pressure build up which could indcate a stuck valve or loose rocker arm

si la batería está débil, intente con el cable de puente de su automóvil.

If battery is weak, try jumper cable from your car.

I'm have the same problem right now cant get a full turn. I did the jump cables and still did it to apart carburetor cleaned it real good, nothing. Took out plug turned over and over again plug back in yeah you guessed it, how do I clean it without tearing it upart

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hi like a few others i was cutting the lawn hit an uneven lump stopped not worked since replaced the solinoid nothing , please help kevin

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we'll need more information but what i would check first is does the battery have power if so make sure the blades are off if so make sure the brake is on and there is gas in the tank try that first

You probably sheared the flywheel key. Go to you tube and search how to change sheared fly wheel key. There are great videos to show how to fix this issue.

I have a older Murray lawn tractor 12.5 hp it has no fire unless I unplug kill wire on coil

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my murray mower just died one day and haven been able to get started sinse.checked all safety switches got new sparkplug new carbuater.drained fuel tank put fresh gas in. motor turns over but will not start. getting spark no gas getting to combustion chamber. when I took out spark plug no gas on it. I have a briggs and Stratton motor 28R707-1120-E1

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Hello. I just purchased a Husqvarna rz4621 when I turn the key to start it barely turns. Battery is good. Out jumped cables on it didn't help. Took spark plug out. Have plenty of spark. Turn key while plug is out and motor cranks over fine. Put spark plug back in and motor doesn't wanna turn again. Not sure what I'm missing?

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Hello I have a 14.5 Briggs & Stratton motor Replaced the battery and the solenoid all it will do is Click motor does not turn over I spend the crank pulley by hand so it does not froze up wondering about the starter any ideas

@redneckracing05 did you get a solution. I have same mower, exactly the same problem!

I have the same issue with a 16hp.

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