127 stalling

[darkminion_17]

Originally Posted by DL127

I replaced the condenser at the same time I replaced the points.The only ignition part I haven't replaced is the coil.

You make no mention of replacing the points to coil wire or spark plug, use a champion H10C or equivalent and gap to .025.

Remove the bowl nut, while holding the bowl on and see if you get a good flow out the hole.
The carb has a vent hole so fuel can flow in it you should check for blockage there.

I know the points have been replaced, did you clean the contacts?
Inspect them carefully and see if the plastic arm is broken, it happens.

[DL127]

I replaced the point wire 10 or 12 months ago. Points aren't dirty or broken. I just checked spark plug it is a Champion h10c. I gapped it today .025". Set the points with a timing light, S in the window of the blower housing. The carbs high jet screw 2 1/2 off the seat, low speed 1 3/4 off the seat. I have tried 1 1/4 off the seats but it runs worse and a shorter period of time.

[sawdustdad]

Is your fuel tank vented? Remove the cap to see if that solves the problem. How quickly does it stall out? 15 seconds? 5 minutes?

[crazycubtrio]

Just to throw my 2 cents in I think ol George might have hit the nail on the head earlier when he mentioned the condenser a couple pages ago. It needs to be hooked up and the case of it grounded. Those cause goofy problems like you are talking about. If you have an extra one laying around it’s worth a try.

[ol'George]

Originally Posted by DL127

I replaced the point wire 10 or 12 months ago. Points aren't dirty or broken. I just checked spark plug it is a Champion h10c. I gapped it today .025". Set the points with a timing light, S in the window of the blower housing. The carbs high jet screw 2 1/2 off the seat, low speed 1 3/4 off the seat. I have tried 1 1/4 off the seats but it runs worse and a shorter period of time.

Try opening the main jet 3 turns off the seat and reported back to us.

[sawdustdad]

Doesn't the manual call for 2 turns on the main and 2-1/2 turns open on the low speed jet? I've never had an engine fail/stall out at those settings, though proper operation always requires some tweaking from those settings.

[Billy-O]

Originally Posted by crazycubtrio

Just to throw my 2 cents in I think ol George might have hit the nail on the head earlier when he mentioned the condenser a couple pages ago. It needs to be hooked up and the case of it grounded. Those cause goofy problems like you are talking about. If you have an extra one laying around it’s worth a try.

And the condenser needs to be hooked up properly......between points and negative of coil.

[cooperino]

A few posts back a fuel filter was mentioned. Is it a plastic with inline with paper inside? They do not flow well. Also. Have you set the float correctly? Good flow to carb is just half the battle. If the float is not set correctly good flow means nothing. It sounds like the problem is at the carb from what you have described. Starving for fuel.

[CADplans]

In this pic, the hole at the bottom center of the carb inlet MUST be open to the fuel bowl area,,



The choke plate has a cut out to clear that port.

I sent a carb to a "famous" rebuilder one time, and it came back with that port still blocked,,

Even he did not know that port was required to be open.

With that port blocked, the engine can not accelerate,,

I paid for a rebuild back then,, today, I would order a brand new carb from eBay for $12 delivered, and KNOW the carb is not the issue.

Also, I would get a new Kohler condenser,, because the issue is either the carb or the condenser,,,

[DL127]

I will solder a ground wire to the condenser strap and attach the other end to the - battery terminal. Condenser is a Kohler purchased 10 - 12 months ago. The point wire and condenser wire are attached to the - side of the coil. This problem has been present since day 1. I have only owned the tractor 2 years. I took a video of the carb venturi with the engine running/stalling out but I can't figure out how to post it. There appears to be plenty of fuel but that's my opinion. I captured a screen shot of the butterfly, fuel appears blurry in front of the butterfy. Carb is a brand new Chinese one. It stalls out just as good as the original.