ol'George, I'll check the wire for power.
Quote:
Originally Posted by JOHN SCHUTTE
IHinIN, I have the same problem with my crapsman with a 19.5hp twin B&S. There is a sweet spot on the choke I have to find for it to run smoothly. I have rebuilt the carb, replaced vac. line, and checked for air leaks(none found). Nothing helped. I also talked with a local lawn mower mechanic and he said there is really no fix.
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That's not what I wanted to hear. I may have to sell it as-is. It still runs fine as long as the deck is engaged so I'm wondering if it's because it puts a load on the engine or if the blades spinning has a flywheel affect that helps the engine run smoother. I'm just trying to think of all possible causes. I'm thinking if it was a carb issue it would still run bad or even worse with a load on the engine.
Could it possibly be a bad governor? I've tried messing with the spring on the governor arm with no success. I tried a shorter spring but then the engine would start revving too high so I put the stock spring back on.