Riding Mower Briggs 20 HP V-Twin Hydro 42 M20-42T 960420145

Was working fine -then no drive to wheels (mower drive working fine).Checked belt, in place and tight.
Experienced gardeners share their insights in answering this question :
New drive belt perhaps

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn`t work, you might need a new fuel filter.
To fix a riding mower that won`t move forward or reverse, you should fix the battery, check for the air filter and carburetor, inspect the transmission for damages, replace the damaged drive belt, and inspect the spark plug. You must also replace the tires, and adjust the wheel position.
There are several potential causes for a riding lawn mower to not move. The most common causes are a broken drive belt, a clogged carburetor, a dead battery, a seized engine, or a faulty transmission.
There are a few common causes as to why a Craftsman riding lawn mower may be going slower than it should, ranging from a worn drive belt, clogged air filter, or even a loose or missing blade. Troubleshooting these issues can help you get your lawn mower back to its normal speed.
If you find that your lawnmower keeps dying, or keeps stalling while cutting grass, then inspect the spark plugs. Look for signs of damage or wear. Something as simple as a cracked porcelain insulator can mean an electrode has been damaged or burned away.
Your Mower Won`t Start:

Other possible causes include: Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas.

Riding Mower Clicks but Doesn`t Crank

When you hear a click as you turn the key, a weak battery, bad starter solenoid, faulty wiring, failed starter motor or a seized engine could be the cause. This DIY troubleshooting will help you figure out what to fix.

Failure of any mechanical component, a broken hose, or clogged filter will cause tractor hydrostatic transmission problems. But the most common issue will be the oil itself. In the transmission section of your operator`s manual, you`ll find a section that covers oil viscosity.
Grinding gears, starting and stopping during operation, and the wheels not rotating with the pulley are common signs that your mower`s transmission is breaking down.
If a mower is hard to start, it may be the result of a dirty carburetor and/or a clogged air filter. Use a screwdriver to remove the carburetor and clean any dirt out of it with a rag. Clean the air filter or replace it if it`s disposable.
Disconnected, dirty or fouled spark plugs are common causes for engines that won`t start. For small engines, spark plugs typically need to be replaced every season or after 25 hours of use. You should also check to make sure the spark plug gap is set correctly.
As the fuel level drops, a vacuum begins to form in the fuel tank because air can get in to fill the space the consumed fuel occupied. After about 10 or 15 minutes, the vacuum will become strong enough that fuel will stop flowing to the carburetor and the lawnmower will die.
When a spark plug becomes fouled, the tips become coated with fuel, carbon, oil or dirt. This interference limits the ignition power needed for mowing on level or uphill surfaces. Maintain your spark plugs by changing them every season or regularly removing and cleaning the tips.
When a spark plug becomes fouled, the tips become coated with fuel, carbon, oil or dirt. This interference limits the ignition power needed for mowing on level or uphill surfaces. Maintain your spark plugs by changing them every season or regularly removing and cleaning the tips.
Dirty or Clogged Air Filter

The air filter cleans the air before it is drawn into the carburetor and when it does its job properly, may get clogged up with debris removed from the air. A clogged air filter may not allow a sufficient amount of air into the carburetor, reducing the power of the engine.

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.
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.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Is the rubber on the drive wheel on the snapper mower fixed to the metal hub? The rubber wheel part of the drive is not securely attached to the metal frame and slips when the mower goes up hill. Should I replace the drive wheel?
ANSWER : Yes, it may have gotten excessive oil on it and swelled the rubber. Replace the drive wheel.

Front wheels are ”sticking” bad, drive is not engaged but wheels will not move freely
ANSWER : Thanks for your question!I’m sorry that you haven’t received an answer yet.The response rate on FixYa FREE questions is usually over 80%, but sometimes questions go un-answered when:1. the question is unclear, incomplete, or poorly worded…2. the question is mis-categorized – so the correct experts aren’t viewing it…3. the question requires an answer for something that cannot be explained online adequately…4. specific training, tools, or equipment are required to avoid injury or death…5. the Experts that are online simply don’t have the resources to answer your question fully…Please feel free to re-work your question if you feel one of these may be the reason.Of course you are not required – but converting your question to a PAID one usually increases the reply rate as well.Normal rates for FixYa are…$ 9.99 answer for one question.$12.99 Live Real-Time online chat or premium e-mail support.$29.99 Live Real Time phone supportSometimes FixYa will run specials for unlimited questions via monthly subscription or reduced rates for limited periods.Consider
the savings that can be had when an informed Expert can save you a $100
service call, or a $350 trip to the car dealership.Your problem solved – guaranteed! Or your money back!!If
you don’t want to pay – feel free to re-submit your question so it
returns back to the top of the work queue if you still need help.Thanks for using FixYa – a 4 THUMBS rating is appreciated for helping with your FREE question

Lawnmower front wheels are locked
ANSWER : Take it apart and clean it. Grass and oil can easily clog any lawn equipment. Is it belt driven? If so turn the belt with your hand the way it would normally rotate. Follow the belt to the engine and clean the rotor if that doesnt work.

Wont engage and move forward – Ariens 220133240732483 Rubber Drive Disc Plate 4"dia
ANSWER : Hello, The friction disc is the thing to look at. Tip the snow blower onto the front. remove the angled cover to inspect the disc. It is easy to remove and inexpensive to replace. This could need replaceing once a year, or might last for over 10 years, it is dependant on your use. The only other reason you might have for not moving is the wheels are not pinned or the drive belt is off or broken.

Hope this was helpfull.

The wheels on my Toro 20038 are worn smooth. Is replacing the rear wheels a difficult job for a fairly competent owner?
ANSWER : You can do this one. Get the wheels from a dealer like www.arcolawn.com and install them yourself. 1/2″ head bolt on each wheel and a nut on the back side fasten them. easy as Pie….Well I would say easier. Have you ever made pie? tough job.Good luck

I have a Troy built front wheel drive mower made in 5/94, model # 34022 with a 6 speed trnsmission. When I put it in gear the wheels barely turn. How do I fix it?
ANSWER : It sounds like you need a new belt for the front wheels.

Front wheels lock up when pull mower backwards
ANSWER : Typically self-propelled mowers are propelled using the front wheels, which only turn forward. Pulling the mower back while the front wheels are turning will damage the drive gears. It’s best to raise the front wheels slightly off the ground before pulling back.

My toro 212-5 mower keeps spitting off the deck belt
ANSWER : You may need a new one. If that doesn’t work you may have a bent pulley that’s cause it to jump off or the barrings in one of your pulleys may be bad which would cause the pulley to wobble therefore throwing the belt off.