backfiring

john98April 14, 2010

I have a carftsman 21.5 riding lawn mower about 8 years old. the problem i have is the left hand side burns real nice and hot on the right side it floods out and cold i checked the coil it seems to be working fine. any options i switch the plugs and the same thing happens.

Thank you for reporting this comment. Undo
walt2002

Posting the model number of the engine may help.

Walt Conner

    Bookmark   April 14, 2010 at 8:09AM
Thank you for reporting this comment. Undo
baymee(LehighValleyPA)

Did you check for spark AT the plug and did you check for compression on that cylinder?

At any rate, you're probably contaminating your oil with gasoline.

    Bookmark   April 14, 2010 at 11:18AM
Thank you for reporting this comment. Undo
john98

i do have spark at both plugs the only thing i have to do is change the oil its very old. if there is a gas smell with the oil what do i do then? after i chage the oil and there is fresh where do i go from there

    Bookmark   April 15, 2010 at 12:43PM
Thank you for reporting this comment. Undo
tomplum

May be pull the offending valve cover and have a look?

    Bookmark   April 15, 2010 at 11:53PM
Thank you for reporting this comment. Undo
rustyj14(W/PA)

By all means, and $4 to $5, buy a fuel shut-off valve and install it in the fuel line. Then have the carb rebuilt.

    Bookmark   April 18, 2010 at 1:32PM
Sign Up to comment
More Discussions
Bad ignition coil magneto on Tecumseh
Is there a more economical solution to replacing a...
don_v
Looking to replace the LB
I've been using a 2003 Lawnboy 10323 for over a decade...
pacochu
I have a Tecumseh 5hp egine no spark
I measure the ohms from the following. I placed one...
Nutty1269
snow throwing
older blower. 7hp, 24" width, 14" auger....
joe_mn
John Deere L110
The mower has been sitting for 3 years, it ran when...
paddlingjohn
© 2015 Houzz Inc. Houzz® The new way to design your home™