craftsman tiller w/ 4hp briggs wont start

leo1254 · 05-23-2009, 02:58 PM

I replaced the sparkplug, and changed,oil, and gas.Tried starting fluid.
It backfired through the carb a couple times when pull starting. Pulled for over an hour, best I got was repeated backfires (about 4 in a pull) But, it dosen't seem to be trying to start.

**Basementgeek** · 05-26-2009, 08:11 AM

Sorry no one got back to you.

You still having a problem?

BG

**octaneman** · 05-26-2009, 09:49 AM

Hi leo1254

If you get continuous backfiring through the carb, the problem can be either a stuck intake valve, the engine maybe running too lean, or the the flywheel key has sheared off throwing off the timing.

leo1254 · 05-28-2009, 07:35 PM

Someone told me to try "sea foam". they think it is varnish- maybe. But when I use starting fluid, it dosent start. When I poured a little gas into the sparkplug hole, it dosent start. I would think it would run long enough to burn the starting fluid or gas up, then die out. The sparkplug sparks a little blue spark.

The next time I work on it, I want to inspect the key, but I am not sure how to remove the part with fins which is behind the pull-start shroud.

**octaneman** · 05-29-2009, 04:48 AM

To inspect the key and remove the flywheel you will need a puller that looks something like this it's not expensive: http://www.idealtruevalue.com/servlet/the-50600/Detail.

05-23-2009, 02:58 PM	#1 (permalink)
leo1254 Registered User Join Date: Apr 2008 Posts: 8 OS: xp	craftsman tiller w/ 4hp briggs wont start I replaced the sparkplug, and changed,oil, and gas.Tried starting fluid. It backfired through the carb a couple times when pull starting. Pulled for over an hour, best I got was repeated backfires (about 4 in a pull) But, it dosen't seem to be trying to start.

05-26-2009, 08:11 AM	#2 (permalink)
Basementgeek Moderator, Home Support Join Date: Feb 2005 Location: Central Ohio, USA Posts: 1,380 OS: XP Pro SP2/Vista Ultimate SP2 Blog Entries: 3	Re: craftsman tiller w/ 4hp briggs wont start Sorry no one got back to you. You still having a problem? BG __________________ Donating to the forum keeps TSF free for all. Proud member of ASAP

05-26-2009, 09:49 AM	#3 (permalink)
octaneman Mentor Home Support, Gearhead Automotive Center Join Date: May 2009 Posts: 505 OS: WINXP	Re: craftsman tiller w/ 4hp briggs wont start Hi leo1254 If you get continuous backfiring through the carb, the problem can be either a stuck intake valve, the engine maybe running too lean, or the the flywheel key has sheared off throwing off the timing.

05-28-2009, 07:35 PM	#4 (permalink)
leo1254 Registered User Join Date: Apr 2008 Posts: 8 OS: xp	Re: craftsman tiller w/ 4hp briggs wont start Someone told me to try "sea foam". they think it is varnish- maybe. But when I use starting fluid, it dosent start. When I poured a little gas into the sparkplug hole, it dosent start. I would think it would run long enough to burn the starting fluid or gas up, then die out. The sparkplug sparks a little blue spark. The next time I work on it, I want to inspect the key, but I am not sure how to remove the part with fins which is behind the pull-start shroud.

05-29-2009, 04:48 AM	#5 (permalink)
octaneman Mentor Home Support, Gearhead Automotive Center Join Date: May 2009 Posts: 505 OS: WINXP	Re: craftsman tiller w/ 4hp briggs wont start To inspect the key and remove the flywheel you will need a puller that looks something like this it's not expensive: http://www.idealtruevalue.com/servlet/the-50600/Detail.