Jump to content

Garden Tractors and Parts on eBay



Photo
- - - - -

Kohler won't start w/o starting fluid


  • Please log in to reply
8 replies to this topic

#1 Brads mf12 OFFLINE  

Brads mf12
  • Member
  • Member No: 70282
  • 38 Thanks
  • 17 posts
  • Location: Minneapolis, mn

Posted August 13, 2015 - 10:36 AM

I'm stumped. I put a brand new carb on my friends JD212 with 12 hp Kohler and started and ran great. A few days later need to use starting fluid to get it to go. Then runs fine. I have adjusted the carb, checked the float level, there is gas in the bowl.
Could it be the fuel pump? Any help here would be great....
  • Lmiller3358 said thank you

#2 propane1 ONLINE  

propane1
  • Senior Member
  • Member No: 54307
  • 8,114 Thanks
  • 3,922 posts
  • Location: Charlottetown, Prince Edward Island, Canada

Posted August 13, 2015 - 10:49 AM

Low cylinder compression maybe,  Noel


  • EricFromPa and Lmiller3358 have said thanks

#3 boyscout862 ONLINE  

boyscout862
  • Senior Member
  • Contributor
  • Member No: 8923
  • 11,982 Thanks
  • 8,771 posts
  • Location: N.E. Connecticut

Posted August 13, 2015 - 11:36 AM

I would suspect that enough good fuel is not getting to the carb. Suspect that your friend may have used old gas. There may be a restiction in the fuel line or a plug in the tank, filter, or line. I was the victim of bad gas many times. Fix an engine and a week later they are complaining that I screwed up. So what if the gas had been in the can for 2 years and stank. One idiot put kero in a gas tank. Be patient and take it step by step from a troubleshooting guide. It is aslo possible that contaminated gas put crap in the carb. Good Luck, Rick


  • Alc and Lmiller3358 have said thanks

#4 tater195 ONLINE  

tater195

    I dont deny your history..... dont deny mine

  • Senior Member
  • Member No: 62468
  • 1,977 Thanks
  • 1,318 posts

Posted August 13, 2015 - 11:49 AM

have you tried different throttle/ choke positions? I have one that starts at low throttle with a quick choke, 1 that starts mid throttle no choke and a bunch the like high throttle and half to full choke. I also had one that wouldnt start without pulling the air breather and plugging the hole in the choke plate, but that was due to a crapped up fuel pump.


  • Alc and Lmiller3358 have said thanks

#5 Kyocum OFFLINE  

Kyocum

    Member

  • Senior Member
  • Member No: 6171
  • 299 Thanks
  • 424 posts
  • Location: Central N.Y.

Posted August 13, 2015 - 12:16 PM

Did you change the gasket as well? If so check and make sure a piece of the old gasket is not stuck on the engine. It will let it suck enough air to make it hard to start. BTDT


  • Lmiller3358 said thank you

#6 WNYTractorTinkerer OFFLINE  

WNYTractorTinkerer

    Tinker Master

  • Senior Member
  • -GTt Supporter-
  • Member No: 10789
  • 9,848 Thanks
  • 5,498 posts
  • Location: Avon, NY

Posted August 13, 2015 - 12:23 PM

Another possibility may be valve lash or ACR malfunction causing low fuel-air mixture in the combustion chamber @ start conditions..  Do a compression test and go from there..


  • Lmiller3358 said thank you

#7 Lmiller3358 OFFLINE  

Lmiller3358

    Member

  • Senior Member
  • Member No: 5109
  • 1,466 Thanks
  • 1,412 posts
  • Location: Massachusetts

Posted August 13, 2015 - 02:31 PM

My 12 hp is always fussy to start,,, floods easy, I pull on the governor arm when I turn it over and it kicks right off


  • propane1 said thank you

#8 EricFromPa ONLINE  

EricFromPa

    Tractorholic

  • Senior Member
  • Contributor
  • Member No: 2135
  • 3,311 Thanks
  • 2,964 posts
  • Location: Bedford County Pa.

Posted August 13, 2015 - 02:46 PM

Low cylinder compression maybe,  Noel

 

 

Had a Decent looking JD 110 that ran when I got it and 2 days later it would not start unless I used starter fluid.This tractor had sat for a while before I got it.

 

Went through and replaced the fuel pump,rebuilt the carb,gapped and cleaned the points and still would not start on it's own.

 

It lost almost all compression.Was turning over to fast with the starter.I could tell it was low on compression.Tore the head off and had a look.Yep Alot of piston slap and not only was the compression ring not seating any more I could see down beside the piston as far as the 2nd ring.I bet there was a 1/4" gap between the piston and cylinder.

 

 

Funny thing is it ran fine 2 days ago just a little smoke at startup.

 

I didn't feel like spending what I paid for it to have it bored out and install oversized piston and rings so I sold it.I got about 1/2 what I paid for it and I think I was just lucky it even sold.


  • propane1 said thank you

#9 Brads mf12 OFFLINE  

Brads mf12
  • Member
  • Member No: 70282
  • 38 Thanks
  • 17 posts
  • Location: Minneapolis, mn

Posted August 13, 2015 - 03:39 PM

All good ideas, we did put new gas in it. When my friend got it 2 yrs ago the fuel line was partly plugged an was replaced but he lets his stuff sit out in the weather. Guess I will start over with cleaning fuel system, may replace fuel pump too. Thanks everybody!!




Top