Return to the Lawn Mowers Forum | Post a Follow-Up

 o
backfiring

Posted by john98 (My Page) on
Wed, Apr 14, 10 at 8:01

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.


Follow-Up Postings:

 o
RE: backfiring

Posting the model number of the engine may help.

Walt Conner


 o
RE: backfiring

  • Posted by baymee LehighValleyPA (My Page) on
    Wed, Apr 14, 10 at 11:18

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.


 o
RE: backfiring

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


 o
RE: backfiring

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


 o
RE: backfiring

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.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Lawn Mowers Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here