I have a hasquvarna 2654 riding mower. It powers off after about 20 minutes of mowing the grass. then I can't mowe the grass any more. It ides high and low and really loses power. What could be the problem? I checked the spark plus, fuel filter, fuel pump and check for any lose wires.

Sounds like your mower belt needs to be replaced. Good luck.

The likely cause of this is that the grass is too high for your mowers deck. You should try just mowing about 1/3 of the blade at a time (if you can) until you reach your desired length, so if you grass is 6" high, only take off about 2" at first to reduce the stress on your mower. Set your mower deck to it's highest setting and give it a shot.

Also, be sure that the blades are sharp, and if you don't have mulching blades, you should get some! Grass this high will leave long clippings on the lawn which can suffocate the grass, mulching blades will chop up the clippings into smaller pieces, which is beneficial for your lawn!

Finally, make sure you aren't mowing wet grass. If you mow when the grass is wet the clippings can stick together and clump up under the mowing deck which will cause excess strain to the mower and maybe even cause it to shut off.

If none of this works, you may want to use a string trimmer to remove the first two inches of your grass and then continue mowing as normal!

Hope this helps! Happy Mowing!

You are kidding, surely?? answer is 1/2 acre!

you need a govenor adjustment take it in or or your waiting to long to mow grass slow down when you mow or mow more often

Have you been mowing high grass, and how long has the belt been on? if you have mowed tall grass or belt is older than 2 years old it needs replaced, most don't realize how much a belt stretches from mowing tall grass. I hope this has been helpful.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/steve_f5a6ca85b5d1ffc9

"the adjustment" is to slow down in high grass areas. alternatively mow more often so the grass does not get so high between mowings

A common loss of power problem with B&S V twins is a set of crumpled valve push rods. Means you are running on one cylinder which is generally OK unless you also want to mow. Easy to check, pull one plug wire at a time off. If it continues to run on one cylinder but not the other, that is your dead cylinder. As the intake is not opening, there will not be a wet plug. Costs nothing to check and could be your problem.

The only way to shred the grass while mowing is to have a pair of mulching blades on your mower, they work, but they wear out fast. They do in Florida anyway with all the sand. And don't for the grass to look a hayfield to mow it. You have to keep at it. Hope this helps.