Jump to content

Time to Vote for Tractor of the Month!
Garden Tractors and Parts on eBay



Photo
- - - - -

Briggs carburetor


  • Please log in to reply
8 replies to this topic

#1 637Yeoman ONLINE  

637Yeoman
  • Senior Member
  • GTt Junior
  • Member No: 77049
  • 1,401 Thanks
  • 1,135 posts
  • Location: SW Michigan

Posted December 07, 2015 - 01:12 PM

I have a Briggs 10 horse with a Two piece flo-jet. 

It will act like its choked and smoke black and hardly run

Then it will smooth out And 2 seconds later it is back to surging and smoking black 

I know i have to clean it but is there anything i should look for. 

Also does a rebuild kit come with a new throttle shaft? 

Can i make new bushings for it and if so how?



#2 Bolens 1000 OFFLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 13,714 Thanks
  • 17,627 posts
  • Location: Western NY

Posted December 07, 2015 - 01:22 PM

Could be a clog in one of the ports or you may be sucking air in somewhere

 

The kits do not come with the throttle shaft

 

Is this the 4 bolt or 3 bolt type?


  • 637Yeoman said thank you

#3 637Yeoman ONLINE  

637Yeoman
  • Senior Member
  • GTt Junior
  • Member No: 77049
  • 1,401 Thanks
  • 1,135 posts
  • Location: SW Michigan

Posted December 07, 2015 - 01:26 PM

4 bolt

Im thinking i clogged the main jet



#4 Bolens 1000 OFFLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 13,714 Thanks
  • 17,627 posts
  • Location: Western NY

Posted December 07, 2015 - 01:33 PM

Could have something in the long intake tube

If you have never cleaned and rebuilt it before I'd get a kit and see what happens , also while its apart you can check the throttle shaft for wear


  • 637Yeoman said thank you

#5 Cat385B ONLINE  

Cat385B

    Therapy CAT

  • Senior Member
  • Contributor
  • Member No: 8002
  • 12,747 Thanks
  • 9,399 posts
  • Location: MN

Posted December 07, 2015 - 03:16 PM

'Two piece flo jet carb'

One of the more evil inventions of all time. Right up there with R.I.O. and timed mower decks.
  • WNYTractorTinkerer and 637Yeoman have said thanks

#6 637Yeoman ONLINE  

637Yeoman
  • Senior Member
  • GTt Junior
  • Member No: 77049
  • 1,401 Thanks
  • 1,135 posts
  • Location: SW Michigan

Posted December 07, 2015 - 04:15 PM

Could have something in the long intake tube

If you have never cleaned and rebuilt it before I'd get a kit and see what happens , also while its apart you can check the throttle shaft for wear

There is no checking... It moves a LOT

I Cleaned it in chem dip And cut a new gasket which stuck out the sides 1/8 inch and was hitting the throttle linkage and making it stick the governor open.

I trimmed the gasket and fixed the springs and it stopped surging. Now im having this problem. Took off the shut off valve, Might have gotten grease in the fuel line.



#7 637Yeoman ONLINE  

637Yeoman
  • Senior Member
  • GTt Junior
  • Member No: 77049
  • 1,401 Thanks
  • 1,135 posts
  • Location: SW Michigan

Posted December 07, 2015 - 04:16 PM

'Two piece flo jet carb'

One of the more evil inventions of all time. Right up there with R.I.O. and timed mower decks.

One piece flo jets are far superior :thumbs:



#8 glgrumpy OFFLINE  

glgrumpy

    Getting Out!

  • Senior Member
  • -GTt Supporter-
  • Member No: 8360
  • 7,548 Thanks
  • 7,173 posts
  • Location: Huntington, IN 46750 North East in State

Posted December 07, 2015 - 05:40 PM

I've had them and do now that start great and run great for awhile. Use them and warm up and you have to adjust main jet to level it out. Put tractor away and it runs awful till you adjust, then adjust again when warmed. Never figured that out. I hope when you dis-assembled carb you pulled that main jet tube out first.  You can't seperate halves with it in place or it bends or breaks. Could that be issue?  How about the metal cap at end of the air cleaner bend. Comes in kits. I've seen those gooked up to seal on old carbs, so must be air leak?  I've never knocked one out and replaced, seemed best to leave in place. Have crankcase vapor tube from engine to housing hooked up and solid?  You can get those carbs new for $80 to $100 many places, not sure the value in those, think Chinese.


  • 637Yeoman said thank you

#9 637Yeoman ONLINE  

637Yeoman
  • Senior Member
  • GTt Junior
  • Member No: 77049
  • 1,401 Thanks
  • 1,135 posts
  • Location: SW Michigan

Posted December 08, 2015 - 08:39 PM

I've had them and do now that start great and run great for awhile. Use them and warm up and you have to adjust main jet to level it out. Put tractor away and it runs awful till you adjust, then adjust again when warmed. Never figured that out. I hope when you dis-assembled carb you pulled that main jet tube out first.  You can't seperate halves with it in place or it bends or breaks. Could that be issue?  How about the metal cap at end of the air cleaner bend. Comes in kits. I've seen those gooked up to seal on old carbs, so must be air leak?  I've never knocked one out and replaced, seemed best to leave in place. Have crankcase vapor tube from engine to housing hooked up and solid?  You can get those carbs new for $80 to $100 many places, not sure the value in those, think Chinese.

I took the main jet you're talkin about out. It's clear. I soaked the top half in chem dip, it cleaned everything out. I took the "plug" on the bottom half out and cleaned all the grease out of the intake. I think it was sucking dirt in then it cleared up eventually?  

Re-assembled after i cleaned it, Ran decent. I need to adjust it better though. Like you said, they never stay adjusted :(






Top