Question about Craftsman 20 hp 42 in. Deck Yard Tractor

2 Answers

Craftsman 30" mid-engine will not fire - model # 536.270321

Less than one year old. Parked mower (running great) then 2 days later it will not fire. It turns over and can smell gas as I choke it or not, but will not fire. I've looked for loose or damaged wires on safety switches and pulled spark plug, all look good. The plug was wet with fuel. I am suspecting one of the 4 safety switches to be at fault, but not sure how to check them.

I could sure use some advice. Thanks, Bud

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 54 Answers

You need to find out if the switches are normally open or closed, that can be done with an ohm meter. Then bypass each one at a time either by just disconnecting the switch or by putting a jumper wire between the contacts (wires off switch). For example the seat kill switch is normally open while operating (no connection) it closes (makes connection) when seat is raised (rider off) and grounds the ignition to shut down the motor. Hope this helps

Posted on Apr 28, 2010

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sniper:

    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 52 Answers

Usually the safety switches won't even let the engine turn over. One of two things is keeping you from getting spark. Could have a bad spark plug or the coil has went bad. Try a new spark plug first. To check for spark you can purchase a spark tester or you can remove the spark plug, ground the spark plug against the engine and turn the key and see if the plug is getting spark.

Posted on Apr 28, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The oil that is in it, is poulan, chain, and bar 30 weight, can I drain, or flush,engine


I usually just drain the oil. Bar and chain oil is thinner than normal SAE 30. If the engine is not seized, then I would suggest using a 15W-40 oil if you are in a warm climate area. These air cooled engines get hot quickly and that will cause the oil to thin more quickly and become less effective. Using the 15W-40 may cause hard starting at lower temperatures. Depending on how long the engine ran with that oil has a lot to do with the "reliability" of the engine. If it was smoking the last time you used it, then yes the engine needs to be reworked (new rings and valve seals in particular). If it wasn't smoking, I would run it with the heavier oil until it just won't turn anymore. These little engines are pretty tough. If the mower is less than 2 years old, then I would put the manufacturer's recommended oil back in it. Don't be too concerned if all of the old oil doesn't drain. Just change it again around mid-season.

Apr 23, 2015 | Garden

1 Answer

MY CRAFTSMAN 6.75 HORSEPOWER 21" MULTI-CUT POWER PROPELLED ROTARY LAWN MOWER MODEL NO. 917.377972 WILL NOT START AND RUN . STARTS THEN QUITS HAVE TRIED EVERYTHING IT HAS BEEN A SHOP LAST TWO YEARS HE CAN...


If the carb is new, then make sure the fuel is fresh- LESS THAN 30 DAYS OLD!!! Is the plug good? Air filter OK? Good oil in the engine? Make sure that the shut off cable hasn't stretched. It may make contact and shut off the engine.

May 20, 2014 | Mtd 22" Yard Machine Push Mower

1 Answer

Yard Machines 13.5 HP riding mower wont start. It turns over fast, has good spark, good gas, good filter, clean carb, just wont fire. It ran fine yesterday and i parked it last night and tried to fire it...


Hi, check that the choke is operating and make sure the plug is wet after cranking. If so replace the sparkplug as it may be breaking down under compression. Also make sure it has compression ad it may have a stuck valve. regards Phil

Jun 19, 2012 | Yard Machines 155 Torque Briggs Stratton...

1 Answer

Mower surging.


did you leave gas in it for the winter gas is only good for 30 days in small engines drain it and try fresh gas

May 14, 2012 | Garden

1 Answer

My 25 horse kohler starts when I put gas in the carb, then shuts off. I have gas from the fuel pump--HELP!


first check for power going to the solenoid on the bottom of the carb its a anti backfire valve if you have power there when the key is cranking and when turned on the solenoid might just be stuck if that works maybe the gas that was left in the carb turn bad

Apr 10, 2012 | Husqvarna Garden

1 Answer

Engine surging 179cc craftsman snow thrower


sounds like the carb will need removing and having it ultrasonic cleaned

Dec 16, 2011 | Mtd Garden

1 Answer

My 12 year Craftsman lawn tractor with 20.5 hp B/S engine and 42" blades will not start. The starter turns over fine but no start. I don't know if it is igntion or fuel problem. I replace the...


Test for spark. Make sure the air filter is clean. Then make sure fuel is getting from the gas tank to the carb. Old rubber fuel line deteriorate and stop up small ports and parts in the carb. An inline fuel filter is a good idea on these larger engines. Sometimes, a larger B & S engine needs the OH valves adjusted to start easily and run properly. If after attempting to start, does the new plug get wet or even smell like gas? You should always use gas LESS than 30 day old. Gas goes stale like bread and milk. You can remove the fuel line from the fuel tank at the carb to drain old gas. You can also remove the carburetor bowl to check for water and sediment (which need to be cleaned out). Check these things and post back.

Sep 05, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have a Husky 435 model that is less than 2 years old and as cut only about a cord and a half of lumber . The saw runs fine when it is running the problem is getting it started in the first place . I...


It should start easily, start with fresh fuel/oil, pump the primer as many times as it takes to 3/4 fill the bulb, pull the choke fully out, crank the engine until it fires once, push the choke fully in and crank again until it fires up, after re fueling a warm engine, pump the primer again until it 3/4 fills the bulb,before cranking the engine pull the choke fully out and in again( this will engage the part throttle ) then crank the engine until it fires up.

May 15, 2011 | Garden

1 Answer

The tractor was running just fine, shut it off and it would not restart. I can jump across the solenoid, it turns over great, choke it, smell gas, but no spark. tried to bypass the interlock in the...


Hi you mdont say what make or model tractor you have . try disconnecting the kill switch wire directly at the engine and then try restarting it if it starts the problem is in the safety switches or ignition key or a shorted wire -- if it doesnt start and still no spark then test the coil .

I Hope this Helps Andrew A

Apr 11, 2011 | Garden

Not finding what you are looking for?
Craftsman 20 hp 42 in. Deck Yard Tractor Logo

468 people viewed this question

Ask a Question

Usually answered in minutes!

Top Craftsman Garden Experts

Dean Gruber

Level 2 Expert

110 Answers

Roland W VanLue
Roland W VanLue

Level 3 Expert

486 Answers

Dennis Key
Dennis Key

Level 3 Expert

2478 Answers

Are you a Craftsman Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...