Ed Nikolich
Member
End of last season, my tractor would only start with a little squirt of ether. Figured it was carb rebuild time. Finally got around to getting the kit and did it.
Now, I've rebuilt several of these over the years, so I'm pretty aware of all the passages. Did my carb dip, then followed up with a 24 hour soak in evaporust. Wires and compressed air run through every passage. I even surfaced the two halves and the manifold mounting surface.
Put it all back together and same symptoms. One thing I didn't notice before the rebuild is that the power adjusting needle is threaded as far out as it can go before it will just fall out. If I thread it in more than half a turn, it will die.
Fresh points, condensor and timing set dead on. The tractor has never idled at 400 before, now it does. But the idle mixture screw is about half a turn out.
Float dead on at 1/4". I've sprayed starting fluid around the shafts, intake mounting area.
So, now I'm stumped. It sounds good at full throttle, but it's belching black smoke and you can smell the richness.
Any suggestions or ideas would be much appreciated!!
Thank you.
Now, I've rebuilt several of these over the years, so I'm pretty aware of all the passages. Did my carb dip, then followed up with a 24 hour soak in evaporust. Wires and compressed air run through every passage. I even surfaced the two halves and the manifold mounting surface.
Put it all back together and same symptoms. One thing I didn't notice before the rebuild is that the power adjusting needle is threaded as far out as it can go before it will just fall out. If I thread it in more than half a turn, it will die.
Fresh points, condensor and timing set dead on. The tractor has never idled at 400 before, now it does. But the idle mixture screw is about half a turn out.
Float dead on at 1/4". I've sprayed starting fluid around the shafts, intake mounting area.
So, now I'm stumped. It sounds good at full throttle, but it's belching black smoke and you can smell the richness.
Any suggestions or ideas would be much appreciated!!
Thank you.
