42 in. Deck 19.5hp Lawn Tractor
Experienced gardeners share their insights in answering this question :
I’d check first for a bent or damaged blade. Check them both.–W/D–
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 :
Deck vibration can be caused by an unbalanced blade, worn pulley or mandrel, bad blade belt or debris caught inside a pulley. Loose nuts or bolts on the pulleys, mandrels or blades can also cause vibration. Remove the mower deck and re-tighten all fasteners. Check for wear on pulleys, mandrels and blades.
Worn or broken blade drive belt – If the riding mower blades are not spinning, the blade drive belt may be worn or broken and unable to engage the blades. If the belt is intact, inspect it to see if it`s loose or slipping on the pulleys then replace it with a new one if necessary.
Belt-the number one cause for your blades not to engage is that your belt is either stretched or loose causing it to slip or fall off completely. Belt could have snapped also. When you are trying to process too much grass/leaves they could pack up under your deck and push off your belt.
The most common cause of excessive vibration is an unbalanced blade. If you`ve recently had your blade sharpened, it`s possible the blade hasn`t been properly balanced during the sharpening process. To fix this, the blade should be removed, rebalanced and refitted.
If you suspect your mower is vibrating excessively due to an issue with the blade, inspect the blade for damaged and test for balance. If it is damaged, replace it. If it is out of balance sharpen the blade so it is balanced or replace it.
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.
The reasons why mower is not moving forward or reverse is that the battery is dead, or due to clogged fuel line. Additionally, malfunctioning transmission, or a broken drive belt, also a faulty spark plug, even when friction wheel isn`t in contact with the friction plate, or damaged Tires.
A dried out or sticky pin is one of the most common reasons for blades to stop spinning. If they spin easily and there`s no resistance, try turning your fan on and see if the pin spins. If it doesn`t, the problem isn`t the pin and there is probably a short in the motor.
A perfectly tight mower belt can rotate without slipping off but not cause the engine to over-exert and overheat. If the belt does not slip off while working and is not producing unfavorable sounds that indicate wearing off of the belt, then that is the perfect tightness for it.
Installing new spark plugs is the best way to resolve such vibration related issues. The timing belt ensures the accurate functioning of many critical components of the engine. Any issues with the timing belt can cause your car`s engine to vibrate.
Motor mounts keep your engine attached to the car. Weak or broken mounts can`t hold the engine tight in the engine compartment and creates a vibration at idle. If the shaking subsides when the car is in Neutral, this could indicate the motor mounts are responsible for the vibrations.
Worn or dirty spark plugs can cause a petrol car`s engine to misfire in one or more cylinders, which can cause vibrations when the car is idling or at running speeds. The easiest solution is to replace your spark plugs and check the related wiring. Engine vibrations can also be due to the air and fuel systems.
An unbalanced appliance will vibrate and shake during operation. Try rocking the appliance from side to side or back and forth. If it`s rocking a lot, your flooring or appliance`s feet may be uneven. Use a spirit level to check the appliance`s balance.
Its your starter, more precisely, the starter mechanism (clutch/bearing) is not engaging the engine. It can be misaligned, broken teeth, foreign debris stuck in the mechanism, or just dirty and needs cleaning/grease.
Use Carburetor Cleaner
Fortunately, you can generally do this without even taking the carburetor out of the engine. Start by purchasing some commercial lawnmower carburetor cleanerOpens a new window, which comes in a simple spray can and will make it easy to clean the inside and outside of the carb.
When your mower vibrates severely, start by checking whether the blade is damaged, imbalanced or loose. Tighten the blade bolt if it`s loose. Replace the blade if it`s damaged. A rough-running engine can also cause severe vibrations so tune up the mower to cure engine vibrations.
Burned or Glazed Side Wall: As the mower belt continues to get used, the belt will wear down. As a mower belt wears down, the side wall of the belt will begin to look burned or glazed. This is another sign that your belt is worn and needs to be replaced.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
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.
Read Full Q/A … : 42 in. Deck 19.5hp Lawn Tractor
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!!!
Read Full Q/A … : 42 in. Deck 19.5hp Lawn Tractor
<!– from fixya rte –>Rj19lm plug gap for a 195cc 4cyl lawnboy – Lawn-Boy lawnboy" Mower Blade 21"
ANSWER : As a starting point in my shop i always use 0.30 in. For all my mowers
Read Full Q/A … : 42 in. Deck 19.5hp Lawn Tractor
Lawn mower cranck but wont start…
ANSWER : Since you already checked for spark and air I would drain all the fuel out of it and check that fuel for water. Over time some lawn mowers end up with contaminated fuel. You can see the water sitting on the bottom of the fuel if you let it stand for a bit in a small plastic bowl.
Be sure to empty and dry out you fuel can as well. Especially if the mower stopped running right after a refuel. Which is a good sign your gas can is contaminated too.
Read Full Q/A … : 42 in. Deck 19.5hp Lawn Tractor
Why wont my mower start and gas comes out of muffler
ANSWER : Carb is flooding out ether bad plug or your carberator needs rebuilt
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MY POULAN PRO 6.5 WONT START….nEED TO REPLACE SPARL PLUG BUT DO NOT KNOW ‘right one”..
ANSWER : Take the old plug out, any auto store should be able to match it up.
Gary
Read Full Q/A … : 42 in. Deck 19.5hp Lawn Tractor
Lawn mower will start and run for 5 seconds and shut down
ANSWER : Will it stay running with your choke on? if so then clean your carb. if not then look for a blockage from tank to carb. ie fuel shut off, deteriorated fuel line. plugged filter etc
Read Full Q/A … : 42 in. Deck 19.5hp Lawn Tractor
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.
Read Full Q/A … : 42 in. Deck 19.5hp Lawn Tractor
