[SOLVED] I Began To Start My Mower (HU 775H) And After 4 Pulls Of The Pullrope It Didn't Start, But The Engine Very Slowly Started To Flutter. After The...

5th pull, it started slow at first, and then sped up. Later the same day, after emptying grass and starting the mower again, there was an enormous popping sound, like a gun shot. This happened twice, and I am concerned about the safety of it
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Experienced gardeners share their insights in answering this question :

Did you hit something hard previously? Sounds like the Keyway broke on the Flyheel and the timing is off

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If it is difficult to start the ride-on mower, the most common reasons include: Old fuel; make sure to use fresh fuel, especially after winter storage. Spark plugs might be dirty or damaged. How to examine and replace a spark plug on your ride-on mower.

A full gas tank and oil reservoir are the essential first steps when checking why the lawn mower won`t stay running, but the problem could also be a dirty filter, clogged carburetor, improper fuel mixture, or a dirty spark plug.

If your chainsaw still starts and then stops working, check the air filter. Clean or replace the air filter if it is dirty or damaged. Another reason that your chainsaw starts and then stops working could be that the spark arrestor is dirty or clogged. If this is the case, clean it with a wire brush.

If the spark plug produces a spark and you are still having difficulties starting your chainsaw, it`s time to check the gap. The spark plug gap is an air gap between the ground electrode and the center electrode. If the gap is too small, the spark struggles to ignite the fuel and air mixture.

Carburetor Carb for Husqvarna 775ex series lawn mower 7.75 horsepower B&S engine | eBay.

Get to work faster. Smart Start is Husqvarna`s name for the technology that evens out the increase of momentum that develops when the piston reaches its highest level. This makes it easier to pull the starter rope, which – in the long run – saves both time and money for you and your business.

A dirty carburetor is the most common cause of a lawn mower that starts and then dies. Other possible causes include: Stale/Dirty Gas. Faulty Choke.

If your lawn mower starts, runs briefly, then dies these are the four most common reasons that`s happening: Dirty carburetor / clogged carburetor bowl. Old gasoline that has gone bad. Dirty or defective spark plugs.

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I began to start my mower (HU 775H) and after 4 pulls of the pullrope it didn’t start, but the engine very slowly started to flutter. After the 5th pull, it started slow at first, and then sped up. Later the same day, after emptying grass and starting the mower again, there was an enormous popping sound, like a gun shot. This happened twice, and I am concerned about the safety of it

ANSWER : Did you hit something hard previously? Sounds like the Keyway broke on the Flyheel and the timing is off

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Wont start no ignition put new plug in and fuel filter

ANSWER : Flush gas tank, fill with fresh gas and Stabil. Replace air filter. Remove bowl from carb clean bowl and holes in bowl screw.

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I have had a poulan pro 550 series push mower for almost 1 year at the end of the season last year the mower would start briefly and then stop. i have cleaned out the air filter and that did not help.the mower started, i made one revolution around the yard 3/4th of the way the mower quit. I then primed the mower it started then quit and now it will not start at all. Does anyone have any suggestions of what to do. Thanks

ANSWER : There is a little spring that works the carburetor arm. If that popped off then the mower will not run.

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I have a Poulan push mower that after mowing in a ditch started making a loud noise and running rough. It almost sounded as if metal was hitting metal. The mower was vibrating more than normal. I checked under the mower and nothing is hitting. After a few times of stopping the mower engine because it sound as if it is going to die down the mower will not start now. The shaft does not appear bent and the blade appears ok. The mower has oil, a good spark plug and a clean air filter. It was running fine until that moment. I did not see anything that I hit but it is possible I hit something in the ditch like a pine cone or branch. What could the problem be and how would I go about fixing it?

ANSWER : If you are sure the oil level is correct then it sounds like it’s about to die, unfortunately. A pine cone shouldn’t cause any damage, but a large branch may do so. Was it smoking before you shut it down? The vibration could be caused from a bent blade. It could also be caused from a part breaking in the motor. I wish I could have given you better news!

Good Luck,

Jim

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My toro 6.5 hp push mower (2010), has no fire to the plug. I have not abused it. i have a small yard and it just gets normal use. Now it won’t fire. I first changed the fuel and cleaned the carb thinking it was that crappy ethanol again. but i grounded out the spark plug and cranked it…no spark. I think it has to do with the lever you pull back to start it . they have some stupid complicated safety contraption that rides along the fly wheel when you pull back on the handle for starting and shutting off the engine. …it looks worn out already…like a mini brake pad. any ideas?…do i really have to replace this garbage every year or am i on the wrong path here?

ANSWER : Unhook your wire from the coil that goes to shut off mechanism, and see if you have spark then. the wire may be grounded out, or your coil might have took a ****

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I have trouble starting a toro walk behind mower

ANSWER : All, I thought my carb was shot, so I replaced it. Still, start but no run (and had to use starting fluid). THEN!!! I noticed the spring to the “rev limiter” (just below and towards rear of carb) was not “tight”. The stupid bracket that holds the end of that spring had been bent down ~1/16″ and that caused all this heartache. CHECK YOUR REV LIMITER!!!

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I have a toro self propelled 6 hp lawnmower battery and pull start it wont start with battery but will with pull cord

ANSWER : Try to start it using jumper cables to boost it from another battery. If it starts, your battery needs replacing.

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I have a problem with a Black and Decker electric lawn mower model MM525. While cutting some high grass today, the mower slowed down, then quit and would not restart. I checked the electrical outlet and there was no power–the fuse was burned out in the switch box. I replaced it, tried again, and again it would not start or even give any response at all, but again it blew out the fuse in the box. The fuse is 25A and the mower is only 12A so that’s not an issue, besides, I’ve used this mower from that outlet for about 4 years since I first got the mower and never had any problem before. My question is: is whatever is causing the mower not to start and to blow out my fuse something that can be repaired or should be? Thanks.

ANSWER : Hello blumph,
I can think of only one or two things that are causing your problems. It could either be approx. a $14.00 switch in the handle that has shorted out, or 2 bad brushes $1.75/ea.on the armature (motor). Both are fairly simple fixes with just a screwdriver and maybe pliers. You might also check and see if the power cord has been chafed or damaged and is shorting out. See below for parts:http://www.ereplacementparts.com/black-and-decker-mm575-electric-lawnhogtrade-mulching-mower-parts-c-4167_9514_9550.htmlyurcarguyken@yahoo.com

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