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Looks like the carb and air filter housing are moving around. Are the carb mounting bolts tight. If they are loose will cause an air leak which can effect engine rpm. If you disconnect the governor spring what does the rpm's do. They should go to idle if the governor is working. If it...

1.3 converts to a .050 gauge bar. If you are just replacing the bar and have 80 dl chains you want to continue using, then you need a 80 dl bar. If you are replacing both the bar and chain and don't have extra chains that you want to use then you can purchase the normal 78 dl bar and 78dl...

And if I replace the coils the problem goes away. See it at least once or twice a year. And in your scenario the coil that is still connected to the ground wire would still not have spark. But if I disconnect one coil they both will have spark including the one that should be grounded through...

So what is happening when I disconnect a kill wire from either coil, and both spark, but if you reconnect the kill wire to both coils neither will spark. Or have the engine running and ground one spark plug wire and the engine dies. Restart the engine and ground the opposite spark plug and the...

Crosstalk diode in one module failing can potentially shut down both modules. Wouldn't be the first I have seen on Kawasaki engines. And we don't have the spec number for the engine or what brand of equipment it is mounted on.

Are both valve opening the same distance. I have seen one cam lobe wear down causing similar issues with rpm and running.

Shuts off all at once leads me to think the issue is not fuel related but more igntion related. Loosing spark when something gets hot.

The sprocket will be specific to the saw, but could have the option of a .325 or 3/8 pitch sprocket. Now bars can get more complicated due to different lengths and different gauges. The chain pitch, gauge, and drive count have to match the bar. So a .325 pitch with .050 gauge( drive link...

When it shuts off does the engine sputter and run rough before dying or does it die like the key was turned off I am wondering if it fuel or spark related

The model number the OP put in the original post is an L head engine.

You have what is called an L head or flat head. Have to remove the head to access the valves. and remove the small cover on the side of the engine which maybe behind the muffler to access the valve springs to check clearance. Adjustment are made by removing the valves and grinding the valve...

I think there is more to this story that what has been told. If he is tapping out the filter. Is he getting enough dirt and dust into the filter to obstruct air flow causing air to find other avenues of entry. Because if a filter gets stricted can cause air and dirt to bypass the filter.

When was the last time the valve clearances were checked. Could of dropped a push rod on one cylinder which would cause lose of power.

I have some thoughts to what could be the issue, but without knowing what 19 hp Kawasaki engine I am only guessing. Having the Kawasaki engine model would really help.

I suspect that the float valve is not sealing allowing overfilling of the carb. When you turn off the key it is killing the fuel solenoid on the carb preventing extra fuel from being drawn into the main jet of the carb. or the main jets fell out when you took the carb apart. item 117 or 117a...

I suspect that this is what you are looking for but looks different than whats on your due to superceding part numbers and module replacement kits https://www.partstree.com/parts/simplicity-1686667sm/ Item 24 on this diagram...

Lets not start guessing and start with the model and serial number of the mower so we can look up wiring diagrams. And if possible a picture of the component. I suspect it is a relay.

I contacted Muhammad last night on the sister site to this one, and he replied that he would check into it. But haven't heard anything else.

For me being in the business for the past 27 years it has come down to more issues with the mower side of the equation and not the engine. Years past I saw a lot more issues with the engine side but the past 5 years or so most of my repair work is on the equipment side. Post away with the...

4 stroke engines normally don't over-rev even with a air leak due to governor action. I suspect the fuel issue is a symptom not an issue. I would be leaning more toward a governor issue. And depending on carb jetting an over-rev can demand more fuel than the jet can deliver therefore seeming...

Thanks, Rivets from a veteran. Even though I served during peace time there is still sacrifices to family and friends.

Muhammad was on tractorbynet the sister site to this one 20 minutes ago,

No. Some have Briggs and Kohler engines depending on model.

Never saw a Craftsman or Husqvarna that required the operator to be on the seat to start. Clutch/brake switch pushed down, or parking brake applied, and control levers in neutral positions for Z turns.

Don't know what rider this guy has but Kubota, Scag, Hustler, and Exmark are the brands that I have come across that require the seat switch to be activated to start the mower with the key.

If you try to start without the jumper, what does it do. Try to crank but either slow, turns and stops, or does nothing.

I think your one option is to remove the top belt and then remove the idler pulley that the belt is stuck under.

Most shops will only offer a 30 day warranty on their work. And parts are normally warrantied through the manufacturer for 90 days in some cases, and 1 year in others.

Your symptoms are indicative of a head gasket that is starting to fail They will fail in the narrow area between the cylinder wall and the cavity where the pushrods are located. So it will pressurize the crankcase when the piston goes up as well when the plug fires to start the next cycle...

The thing with spark plugs now is the gas is more electrical conductive and the ceramic is no longer sealed and is porous. So it will absorb gas from flooding and short the plug out internally. And most ignition systems are no longer magneto systems. They are CDI Capacitive discharge ignition.

Picture of engine and carb would help. Original post makes it sound like an older Briggs opposed twin. So the carb kit choice would be mainly 3 or 4 bolt carb mounted fuel pump.

Lets slow down. So are you saying that the engine is running too fast and cannot be slowed down even by taken all the tension off of the governor spring. If so I would be suspecting a failed governor gear inside of the engine block.

97% of the time that is the result of a float valve that has not sealed and has allowed the carb to empty the entire contents of the fuel tank into the intake, which some will go into the cylinder and past the rings, but most will drain down the breather tube into the engine block. Will...

What always get me is they say to connect motorcycle and atv batteries to a 1.5-2 amp charger for charging and then you drop that same battery into your atv and connect it to the 20 amp charging system. The same with lawnmower batteries. And just because you connect that battery to a 20 amp...

When the engine warms up and the oil is no longer being held in the ring grooves compression could drop to the point that it stalls. Funny thing is they also claim that engine is a 8.0:1 ratio engine which puts the max compression at around 117 not the 131-150 they claim.

What always get me is they say to connect motorcycle and atv batteries to a 1.5-2 amp charger for charging and then you drop that same battery into your atv and connect it to the 20 amp charging system. The same with lawnmower batteries. And just because you connect that battery to a 20 amp...

MTD service manuals haven't been updated since 2010 which is one step ahead of Husqvarna which doesn't even have service manuals. If we had the model and serial number from under the seat we could search to see what we could find.

Honda compression check for that engine states to install compression gauge and pull starter rope with force several times and compression should be 131-150 as Startech posted. So unless you are just playing with pulling the rope your 60 psi is the issue.

2 or 10 would be fine. The issue to be away of is most of the modern chargers won't charge a completely dead battery. You have to have a certain voltage in the battery for the charger to turn on the charge function.

Wouldn't hurt to replace the spark plug. Spark plugs will do weird things. I have personally seen this exact issue with Honda engines where the spark plug hot fail, and then start working after a few minutes and then fail about 5 minutes later. And it would be nice if you could go back to...

If you would of blown the picture up you can see the hole that I described where the spring connected. Also it would of help if you could of verified the model number as requested in your original post , because the model number you listed is for a 2010 Troybilt with a 38 inch deck not the 2003...

Just had a customer purchase a new Husqvarna from Rural King Monday and got the call Monday evening that they had driven it 50 feet and it died and wouldn't restart. Water in fuel tank

You supercede a part number enough time you hit a point were the part you started with is no longer the part that you want.

some days it take 6 attempts to even get into the site. And then when you do it may go to 500 error before you are able to post a reply, or in some cases I have to leave and come back later.

People seem to think they are suppose to set the cutting height, and that may of been true on older decks that floated on the ground and like some Snapper/simplicity mowers of years past with their full length deck rollers. But anti-scalp wheels would be a better definition of their use.

The spring should connect in the small hole next to the square hole on the right side in this picture. https://www.partstree.com/parts/troy-bilt-683-04138b-0637/ Most likely the hole were the spring was connected will have a keyway wear area and be shiny.

Whatever you decide to use as a rope stop needs to be able to slide through the ring where the starter handle connects to the handle bar. Or like you said you can remove it from the handle bar and just reach down to start it and let it fully retract.

Need to confirm model number. What you posted is for a 2010 with a 38 inch deck.

When the handle bar moves up and down it pulls the starter rope out slightly which causes the starter pawls to extend enough to contact the rotating starter cup. Some push mowers have a metal band crimped to the starter rope that acts as a stop for the rope retracting into the starter...

You have the Susa starter system. What I have found over the years with that system is the push handle has enough up and down movement when being pushed that it will move the starter pawls enough to make contact with the starter cup making all kinds of racket some times.