Question about Garden

1 Answer

My lawn tractor will not start. Turns over and then backfires. Any ideas what I should do?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 986 Answers

The timing is off, check your flywheel key and replace it if it is partially sheered this will throw off your spark to be little or non at all. Assuming it has electronic ignition the only three parts you need to produce correct time are cam to crank timing mark match up [for proper ignition timing ] and a solid flywheel key to line up the flywheel and crank for proper spark build up between coil and magnets on flywheel .
Oil out your exhaust could be from too much oil,a plugged vent tube from crank case vent to carburetor will cause crank case pressure to push oil out of the engine through seals,exhaust valve guides up into combustion chambers too ,If the pressure gets too great it can blow a motor up .
I am susspecting the valve timing is off ,The oil coming out the exhaust at the far side of what I believe to be going on without seing it in person, could be a bad ring but doubtful if it was maintained reasonably well .

Posted on Sep 26, 2009

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

Craftsman lawn tractor backfiring


clean the jets inside the carb

Aug 06, 2012 | Craftsman Garden

1 Answer

My lt1000 turns over and while turning over backfires. does not start. Started backfiring a couple weeks ago while in operation. would backfire, engine would die, wait a few and started again. finally,...


The engine should be an OHV type. You could try adjusting the valves under the OHV cover. Kinda like the valve lash on cars. When the valves are at rest you can set each one to about .004 with a feeler guage. You can look on youtube for a video one adjusting lawnmower engine valves. Seeing it is easier to understand then reading it.

I hope that this helps you get it fixed.

Jul 17, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

Tractor wont start


For a small gas engine than won't start, think FAST -- Fuel, Air, Spark, Timing. You've replaced the filters and spark plugs and squirted in some starter fluid, eliminating the simple common fuel, air, and spark problems -- but I because of the backfiring I think your problem is in the timing -- like a sticking valve. Probably more than you want to tackle at home, but might not be as expensive as an engine replacement. Take it to a good small engine mechanic -- best bet is a lawn equipment shop that has been around many years. Drive a little farther to get to one if necessary.

Jul 02, 2010 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

Backfire won't start now turns over


coil or coil packs are bad, also check for fuel to make sure it is getting gas.

Jun 30, 2010 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

Not finding what you are looking for?
Garden Logo

Related Topics:

19 people viewed this question

Ask a Question

Usually answered in minutes!

Top Garden Experts

Dennis Key
Dennis Key

Level 3 Expert

2478 Answers

john h

Level 3 Expert

12104 Answers

yadayada
yadayada

Level 3 Expert

75807 Answers

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

Answer questions

Manuals & User Guides

Loading...