Question about Craftsman 22" Rear Bag Rear Propelled High Wheel Lawn Mower ()

1 Answer

Mower wont start, it sat with old fuel for 4 months

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 247 Answers

Could be a number of things, but on a machine that's sat for a while with fuel in it, I'd try dealing with the stale fuel and associated water in the float bowl of the carb first.


Empty all the fuel out of the tank and dispose of it safely.

Replace with fresh fuel.

Get a small jar and slip it in underneath the carburettor (small mechanism, usually towards the front on the right hand side of a mower engine, with the hose from the fuel tank going into it) to catch the fuel you're about to drain out.

The bottom of the carburettor is going to look like a small metal bowl, maybe an inch or two across, with a bolt going straight through the middle of it from underneath (sometimes there's a second bolt too).

Find a spanner that's the right size (the bolt is usually brass or aluminium, and if you try to use the wrong size of spanner, you WILL damage it) and loosen the bolt in the centre of the bowl by a turn or two until fluid starts to drip out (think a little bit about which way you turn the spanner - the mind plays odd tricks when faced with a bolt screwed up towards you).

Make sure what comes out is going into the jar then look critically at what it is.

What comes out at first is likely to be oily water. This comes out slowly in big drops that stay bunched up when they land in the bottom of the jar. If you put a bit on your finger and bring it to your nose, it smells unpleasantly oily. It may contain rust coloured blobs of microbial contamination.

Once the water is gone, you'll get petrol ("Gas" to those who speak the other sort of English). This just runs out, spreads out over every surface it touches and makes the place absolutely reek of petrol the moment it comes out.

As soon as you're getting petrol out, gently retighten the bolt to stop the flow, remove the jar (dispose of the contents safely) and then, once you're sure all the spilt fuel is safely removed, have another go at starting the mower.

If the machine starts, all well and good. You may find that it runs for a few minutes before hunting uncetainly and then dying. If this happens, youve got another slug of water in the carb, which needs to be drained out as described above.

If it still doesn't start, the next place to look is the ignition system - If you help with that, post back here explaining what you've already done.

Let us know how you get on.


Posted on May 01, 2010

1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

The Scooter was only ridden for 63miles around neighborhood. Then sat for about six months now wont start was told gas could be old. What to do

Best bet would be to empty the fuel left in it then buy some fuel stabilizer and refill fill the tank with good gas also check the battery and fuses.

Feb 19, 2016 | GAS Motorcycles

1 Answer

It will start but will not continue running

If the fuel in the tank has sat for over six months, replace all of the fuel with new (not from old fuel in a can in your shed, either... new fuel).
Ethanol blend fuels are less stable when stored, and can become useless in just a few months of sitting.

May 14, 2015 | Garden

1 Answer

Wont start been idle 4 months 9 months old unleaded in tank 4 months

If you didn't kept gas in carb. and didn't add stab-loc. You need clean the carb.

Mar 18, 2014 | Toro Garden

1 Answer

Mastercraft 4hp sat along time cleaned carburator and installed kit... still wont start

threw jets if the carb was stored with old fuel the jets could be plugged up as well as the needle valve can be stuck

Jul 03, 2012 | Garden

1 Answer

Honda hrb423 mower wont start have checked spark plug works any other suggestions pliz

Check the air filter and ensure that the fuel is pretty new. Today's fuel goes starts to go bad after about a month. So if the gas you left gas in it from last season or put old gas in it, it may well not start. Dump out the old stuff and put in new. If it sat with old gas and changing the gas will not let it start them you may have to clean the carb.

Jul 14, 2011 | Garden

1 Answer

My mower has sat for 1 month and now it will not start , If I primer it it runs for a few seconds , Last time this happened they told me it was bad gas , The mower is ony 6 months old and been in the shop...

If you had said the make and type of engine it would be easier to solve this.
Because it runs when you prime it means its carb. trouble. Remove the carb. and loose it down and clean it out with petrol and blow it out with air.
Check the fuel inlet needle valve and float or any diphragm that might be in it. Stephen

Nov 10, 2009 | Yard Machines 158cc Push Lawn Mower #11a...

1 Answer

Sat for a year wont get cold fan and compressor

It needs to be re-gassed.
Sorry mate, there is a rule out there if something is not in use at least once every three months, it brakes. This goes for cars, printers, TV's, lawn mowers, ect. and fridges new and old.

Sep 06, 2009 | Refrigerators

1 Answer

1987 Chevy R10 project truck won't start

check the float on the carb is stuck shut not letting fuel in

Aug 17, 2009 | 1987 Chevrolet R10

1 Answer

Fuel line broke drained all gas fixed wont start

look in your car book look for fuel pressure reset switch

May 18, 2009 | 1988 Ford Taurus

Not finding what you are looking for?

Open Questions:

0 Answers

Does the belt slip going uphill or with a full grass bag? My Craftsman mower lost the self propel feature. The small pulley on the top of the transmission would slip under load, There was just not enough tension on the belt to over come it. Tried a new belt and also replaced the tensioner spring...still slipping when going uphill or with full bag. Possible pulleys worn...not wanting to gamble more time and labor, I bought a 4" 1/4" cap screw with extra nuts and flat washers, a 3"16 eye bolt as well. Drill a 1/4" hole in the bracket that holds the trans activation cable in place and a 3/16" hole in the mower deck so the holes are in alignment with each other. Put the cap screw through the 1/4" hole with the threads facing toward the front of the mower. Fasten the eye bolt into the 3/16" hole in the mower deck locking it in place with one nut on each side of the metal. Now you have the 1/4" bole protruding through the eye bolt. Using a flat washer and nut, tighten then nut easily and when there is room put a second nut on it. When you have tightened it up to the desired belt tension lock the two nuts together using two wrenches. NOT make the belt incredibly tight or you will destroy the trans in a short time. Go a little at a time till the drive does not slip under load. Good luck hope this helps. will have to trim the plastic cover that covers the transmission so the added bolt will clear it and you can put the cover back in it's proper place.

Mar 01, 2017 | Craftsman 22" Rear Bag Rear Propelled High...

See all Craftsman 22" Rear Bag Rear Propelled High Wheel Questions

Craftsman 22" Rear Bag Rear Propelled High Wheel Lawn Mower () Logo

133 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