20 Most Recent Toro Lawnmower 20099 Mower Mowers Lawn - Page 7 Questions & Answers

Maybe a warped deck

maybe its worn and stretched...replace it

The threads may have been stripped.

What you describe as slow may be starter stall. Starter stall occurs when decompression fails which is typically due to the valve lash out of spec. The Kohler Courage is an OHV engine that requires periodic valve lash adjustment.

Try removing the spark plug and then engage the starter. If it still cranks slowly then the problem.is not related to decompression.

Check with a Toro dealer or directly by contacting Toro.

Review diagram at;
https://www.partstree.com/models/41-20oe01-520-h-toro-garden-tractor-1990/wheels-and-tires-35/

Raise and secure front of mower off the ground.
Remove large wheel cover (if in place).
Remove small dust cap.
Remove cotter pin.
Remove castle nut.
Remove flat washer.

The wheel should now be loose and the outer roller bearing can be removed. Next slip the wheel off the spindle. Take care not to loose any parts from backside of the wheel.

Likely the starter solenoid or the brake actuator module.

You'll need to measure the voltage at the starter solenoid coil. You should read battery voltage across the solenoid coil when the ignition switch is in the start position.If you don't read battery voltage, there are multiple causes for this fault.


For engine START, this unit requires the following;

PTO switch OFF
Steering arms OUT (brakes fully applied)
Operator seat occupied.

When steering arms move OUT the brake actuator module applies brakes and allows the power to the starter solenoid coil when the ignition key is rotated to the START position given the 3 conditions above are met.

The brake actuator must rotate and apply the brakes or the unit will not start. Any obstruction of the brake linkage that prevents full brakes or if the actuator is out of adjustment will prevent starting.

http://www.raindialdoctor.com/irritrol-raindial-rd-600-900-1200-r-sprinkler-timer-repair/diy-troubleshooting/ http://www.irritrolraindialrepair.com/Common-Failure-Symptoms.html Problem 6. on the above page points to a rain dial timer/controller failure. Below may be an option for you. The second link below is superflous but may come in handy at some point in the future. http://www.irritrolraindialrepair.com/Coming-Soon-Type-R-Repairs.html http://www.raindialdoctor.com/irritrol-raindial-rd-600-900-1200-r-sprinkler-timer-repair/diy-troubleshooting/

have yo put the governor link back on the carby properly

this seems serious...

It is well known a single phase induction motor can change direction but that type of motor is too heavy for portable equipment and a series -wound brush type motor is commonly used due to their much lighter weight. I can think of no fault that would cause your motor to run backwards though I suppose it might be possible to fiddle with the internal connections... One thought does occur however - as it is a variable speed tool. The speed control could be a type that outputs DC or direct current instead of alternating current and in that case if it suffered a fault that could conceivably reverse the polarity, it would reverse the motor direction.

pull plug and try motor again if boggs or still problem internal motor problem or belt- pulley causing drag turn normal need to recheck electrical system

Check transaxle bypass lever is in proper position.

There is no regular maintenance service for the transaxles. If there is notable fluid leak then likely low fluid level. See service guide.

https://www.toro.com/getpub/21962

Back firing could be an ignition, or valve timing issue, also check the function of the anti fire solenoid on the bottom of the carb float bowl ( you should hear this click as the ignition is switched on) you can also remove it and watch the centre pin retract when the ignition unit is switched on, next thing to check is that the flywheel key has not sheared, this will involve removing the flywheel, failing this remove the rocker box cover and make sure both valves are moving freely as the engine cranks, it could be a stuck valve.

what kind of issues --here are two basic omnes does it have spark --does it have fuel

https://www.google.com search of internet gave several possible sites to contact and request assistance: https://www.wheelhorseforum.com/topic/68831-244-h-onan-carb-rebuild-kit/ http://onanparts.com/

https://www.justanswer.com/small-engine/97k4d-toro-lx-427-won-t-start.html

It may only need unplugged to reset rather then taking inside.

Likely it's a thermal switch. Try running with out moving snow and see how long it runs.

it needs fuel.

Typical snow blower shifts by moving a drive wheel on a hexoganal shaped shaft. Likely the wheel has rusted to the shaft from insufficient maintenance.

Remove the rear/bottom cover plate to access the transmission (usually 4 bolts). Lubricate shaft/wheel with penetrating oil and work free.

Avoid getting oil on the drive wheel and disc or thoroughly clean the disc and wheel with a liberal application of alchohol until wiping with a rag comes clean.

Lubricate any drive chains as well.