Help: Sears 10xl walbro carb adjustment
Posted July 16, 2015 - 11:02 PM
Posted July 16, 2015 - 11:03 PM
Seat looks strange.Is that a metal seat?If so it needs a rubber tipped Needle.
Here I took a couple pics of a junk LME 27 off of a 72 HH100.This carb had a severely worn throttle shaft as you can see in the 3rd pic.
I cut it apart to learn a bit on how to clean them.It helped alot.I can clean and tune them now anyway.
Posted July 16, 2015 - 11:08 PM
Posted July 16, 2015 - 11:09 PM
Posted July 17, 2015 - 10:18 AM
Posted July 17, 2015 - 10:30 AM
Now the spark plug is dry but black. Does this mean it's too lean?
Posted July 17, 2015 - 11:33 AM
black is still rich, white would be lean.
Posted July 17, 2015 - 12:12 PM
Posted July 17, 2015 - 12:59 PM
What am I doing wrong?
Posted July 17, 2015 - 02:16 PM
Posted July 17, 2015 - 04:58 PM
High rev is does fine but at low idle...it's shooting out black smoke and wants to stall
Posted July 17, 2015 - 05:12 PM
Ok a few things I'll point out to make sure you left no stone unturned
1) Have you gotten a rebuild kit for this carb and replaced the needle and seat?
2) You should have the gas all the way open when running the machine and making adjustments.
3) Have you let this carb soak overnight and then blow it with compressed air? A simple spray of carb cleaner is not enough to get into all the small ports that may be clogged.
4) Are you making adjustments as soon as you start the engine cold? If so your never going to get anywhere, for adjusting the carb initially set it to factory specs then start the motor and let the engine run atleast 10-15 minutes , even if it runs like crap keep it going until it gets warm to operating temperature , once the engine is warm start the coarse adjustment first (bottom screw) allow the engine to set itself for about 30 seconds before making another adjustment, if you make adjustments too fast or on a cold engine you'll never get the engine set right.
Posted July 17, 2015 - 05:17 PM
Yes, I know I should do all of that but.. winder if it's cheaper to just get a new carb. The throttle linkage moves some but not like crazy.
So do you think I need to get a rebuild kit or just buy a carb whuch has float set and only needs adjustment?
Posted July 17, 2015 - 05:25 PM
How is the throttle cable and brackets adjusted? The throttle piece bottoms out on the carb quick which puts the throttle lever on dash pretty low even though throttle is fully open