Lawn Boy Starts Once

iwannarideJune 11, 2014

I have a LB 8237 purchased in 1978 or 1979. Still runs good but only starts when cold and then will start on the first pull. If it runs only a minute, it will not start again until a long rest.

Thank you for reporting this comment. Undo

So, how big is your lawn?

    Bookmark   June 11, 2014 at 7:59AM
Thank you for reporting this comment. Undo

Flat head engine 4 stroke engine? If so I would remove the head clean the carbon from the combustion chamber (head, valves, top of piston, head gasket, and spark plug) and look for slop between piston and cylinder wall.

2 cycle? WTFO probably.

    Bookmark   June 11, 2014 at 2:58PM
Thank you for reporting this comment. Undo
whizzer75(z7 Al)

I have one that did that many years ago. It was bad electronic ignition coil (if that's the right term). Replaced it and its' still going strong.

    Bookmark   June 11, 2014 at 4:23PM
Thank you for reporting this comment. Undo

Thanks for the replies.

Mike, the yard is very small and the LB is used as my trim mower. I use a small lawn tractor for most of the work.

rcmoser, the LB is a 2 cycle engine, F series I think.

whizzer72, I expect the same as you; i.e., the warm engine changes the coil characteristics so the spark isn't as strong. Just hate the cost of a new coil for troubleshooting.

    Bookmark   June 11, 2014 at 8:59PM
Thank you for reporting this comment. Undo

I agree with whizzer, The way to find out if the module is not working is to disconnect the spark plug wire, remove the plug , reconnect the plug wire .then with the plug touching a bare metal spot on the mower, pull the starter cord and see if there is a spark. If no spark, it's the module.

    Bookmark   June 12, 2014 at 9:36AM
Thank you for reporting this comment. Undo

I'll try the spark test suggested by bogman to see if I have spark. If not, could it possibly be a bad spark plug?

    Bookmark   June 13, 2014 at 8:16AM
Sign Up to comment
More Discussions
Honda Mower Problem-Backfire thru Carb?
I have a Honda walk behind that has been awsome until...
Husqvarna 150bt blower running lean - harder to start
Blower is taking 3 - 5 pulls to start when it used...
Lawnboy circa 1967 aquanaut/air buoy evinrude parts
Hi. I am wondering if anyone could be of assistance....
2 cycle (Robin) Snapper
Does anyone have any input on whether that Robin 2cycle...
Lawn Boy 7263 parts to a good home
I have a vintage LB 7263, D 600 engine, Magnesium deck...
Sponsored Products
Modern Plastic E27 Pendant Lighting White
$7.95 | ParrotUncle
Habersham Belmont 93H Library - 2 Unit with Glass Shelves
Augusta Black Wood Counter Stool
Weston Original Jerky Gun Jerky Shooter
Henri Studio Rustic Cast Stone Flowerbed Bird Bath
Lamps Plus
Artecnica Petit Trianon Pendant Light
Dale Tiffany Cambay Art Glass Vase
$98.99 | LuxeDecor
Artificial Grass: GREENLINE Flooring Classic 54 Spring Artificial Grass
$22.97 | Home Depot
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™