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I've been trying, unsuccessfully, to diagnose the no-start issue with my mower; Murray 425009x8A with B&S 31R907-0007-G1 engine. It died while I was mowing. The flywheel spins and I can get it to run at 1/4 power for a second or two. I've been assuming that a bad switch would be like...

Found this loose wire under the seat of a Murray 425009x8A riding mower. I'm hoping it's the reason I can't get the B&S motor started. Don't see any other loose ends, and can't understand the wiring diagram. Thanks. Untitled by Larry Johnson, on Flickr

Been trying to get a B&S started. Found this loose yellow wire under the seat but don't see another end to plug it in. I can't figure out anything from looking at the wiring diagram. Also, where's the fuse hidden on a murray Untitled by Larry Johnson, on Flickr

Trying to figure out why the mower won't start. It's getting spark. Looking into carb and noticed the unfilled hole on and the small black piece I'm pointing to. Is something missing or broken. I've got a parts manual but no real good drawing showing linkages. B&S 31R907 0007 G1 code...

Bought a used Murray with a B&S motor, 31R907 0007 G1 140924ZD about 2 months ago for use at my home. It started every week with no issues until yesterday when it cut off after about 5 minutes of mowing. The gas is good and flowing to the carburetor. I did see a spark at the plug once, but...

Haven't had an issue with the mower all season until the drive belt broke a few weeks ago. It sat under covred roof, but open-sided porch for a couple of weeks until the rains from Ian passed by. Replaced the drive belt today, but couldn't get it fire up. It would crank and run monentarily if...

Installed a new oem drive belt today and notice it smelled during initial test drive. Extemely hot to the touch. When replacing I noticed one of the belt guides was worn. This belt is much thicker than old after-market belt. Guides aren't bent. I rotated the worn guide , but still belt gets...

I've got an old 22hp Murry with BS 2-cyl motor that I resurrected 5 yrs ago. Spent too many weekends this year working on it. I guess it's time for a new or slightly used mower. What brand/model is dependable and easy one to work on when drive belts need changing, etc.. I would only use it on...

She backed out of the shed like normal, but when placed in forward the Go pedal got stuck in the down position and Larry's mower wouldn't go in foreward or reverse. The linkage looks good underneath. The brakes aren't locked, she rolls easy in N. The drive belt was replace a couple years ago...

The problem is the Primary Belt on the deck keeps jumping off the pulley under the mower everytime the drive is disengaged. There seems to not be enough tension on the pulleys, but I can't figure out where there might be a missing spring. Looking at the exploded diagram makes me dizzy. Any...

Can't figure out why mower won't run on gas, but will run on steady stream of carb cleaner. I've been using the old mower for 5 years with no issues. After a number of uses this year, it just stalled out. I assumed the gas was bad, so I emptied the tank, lines, and carb bowl. The only way it...

I believe I added some bad gas to the tank and mower died 2 minutes after staring. Can't get it re-started. I drained a bunch of gas from the tank and all of the lines, changed the fuel filter, which was nasty, but still won't start. I can get it to start briefly with a shot of carb cleaner...

Trying to decide which mower to keep. I've got an old 46" Murray Lawn tractor with B&S 406677, type 0344C1 2-cyl OHV engine that I've been using for a few years. I resurrected it from the dead. It's set up for mulch cutting, so it makes a mess of me and it. Seems like I'm replacing a belt...

I picked up a craftsman mower with a smoking 331800 (3318771371, code 100913ZD) B&S engine from my neighbor. Knew it was smoking, mainly just when throttling up hills. Wondering how reliable this B&S engine is. Head gasket blown?

After backing the mower out of the shed, stupid brake pedal got stuck in the down position. Won't budge and won't go down any further. I removed the rear wheel, brakes and springs. No movement. Before the sun set, I tapped the pedal with a BFH. No movement. I'm stumped. What's going on.

Me mower stopped like a mule in it's tracks halfway through cutting the front lawn. Figured it was the (rear) primary drive belt, but it's in tact. The longer, secondary belt (49) is broke. From the diagram it looks like this belt doesn't have anything to do with making the mower move forward...

Working on cleaning the carb of my pressure washer per all the videos I've watched. Is the little ball thing pictured here suppose to move in and out? Untitled by Larry Johnson, on Flickr Also, wasn't able to get the inside needle valve thing removed despite countless banging on the bench...

Just a couple years old, little used pressure washer won't run with choke in. Runs at half power with choke pulled. Ethanol issue? Clogged jet? I always turn off gas and let it burn through remaining before storing. I don't really know much about them, but if I know what to investigate, I'll...

What causes the right rear wheel to be coated with mulched grass while the left one stays clean. I know the grass has to go somewhere with a mulch blades and cover installed, but it seems like it's still forced towards the right side exit. Cleaning out under the deck today I noticed that there...

Occasionally, me mower won't shut off with the key. When it does this, it comes close, but won't completely turn off with the key. I just turn the key back on, then off, and it shuts down. The kill wire on the coil is attached and isn't rusted. The main wiring harness and starter solenoid...

How is this new pulley suppose to be secured to the new spindle when the threads stop short? There's a spacer on the new spindle. It came already attached. The pulley lines up with the wear marks of the old pulley. It doesn't fit upside down either. Thanks. Untitled by Larry Johnson, on Flickr

Had to get a new spindle and screws for a 46" deck. Bought aftermarket spindle and B&S bolts from Jack's Small Engines. The bolts/screws are standard flat end threaded, but are called HD Tap. Will these tap their own threads into the new spindle whose hole is too small for the bolt to go all...

What's the secret to removing the top gear for replacement? There's no pin to pop out. Replace with aluminum or plastic? found a video. https://www.youtube.com/watch?v=D1SeNsYxGYs

The B&S V-twin that I brought back to life last year and used all summer is acting up. I sounds like someone is killing a cat when the key is turned. I used it once this year and started it sunday, but I had to turn the engine by hand a couple of time in order to get the starter to spin it...

I'm enjoying my new used mower, but having issues with the bagging chute. The result is clumps of grass sticking to the right rear wheel and ending up in a trail on the driveway. Nice green stains. I only bag when I cut the front yard. I only cut when the grass is dry. I mow regularly...

I couldn't see paying $35 for a plastic mulch cover plate. Couldn't find a used one. Thought about making one from wood, but don't have a steam box to bend the wood. Sheet metal crossed my mind, but I've never had the skills to cut it properly and I only have hand shears. Had a bright idea...

Picked up a 2005 Murray Lawn Tractor off of craigslist for free a few weeks ago. With the help of some kind folks here, managed to get it running and in good working order. It came with a bagger attachment too. It's not bad looking at all. The front grill was missing, so I just pop riveted...

Could a missing variator idler spring cause the drive to take a few moments to kick in when the "transmission" is engaged. I'm troubleshooting mine and noticed that I don't have such a spring. It's shown at the bottom of the following diagram. Here's what my variator and belts look like...

The resurrected B&S v-twin ran fine for about 15 minutes cutting grass and then just stalled out. The new fuel filter was dry when it shut down. Had about 1/3 tank of fuel. Thought either had a fuel pump issue or vacuum issue. Blew out some crusties from the fuel cap and allowed engine to...

Almost ready to put the Murray into action, but having an issue with the center spindle on the cutting deck. The spindle/pull turns by hand without blade attached, but will not when blade is installed. The outer two spindles are fine with the new blades installed. I was able to get grease...

My B&S v-twin will only fire when the "kill wires" are unplugged from the coils. I understand that this means I've got bad kill wires. What part needs to be replaced. Just back to where the wires are enclosed in plastic, as shown below, or does it go further back. Thanks. Is it the diode...

Trying to dignose an OHV v-twin. Bench tested the coils with an old analog ohmmeter, but not certain how much resistance indicates a good coil.

Received the key to my freebie Murray mower (model 465306X8B with B&S V-twin 406677 type 0344E1) today and gave it a try. Of course it didn't crank. Help me diagnose the problem. I'm not much of a mechanic and resort to the internet for education. Background: mower had been sitting a few...

I inherited a non-running Murray Select lawn tractor (model 465306x8B). It's not in bad shape. Hasn't run in a few years and the word is it may need a starter. 2006 battery is at 5 volts. Just ordered a key for it and took some of it apart to clean. Drained the old fuel and pulled the...