Group seems more oriented with equipment than gardening itself. Try the
Push mower. Wal-Mart source. 4.75hp B&S. 22" cut. 2 years old. Idles
good when cold for about two minutes at 60 - 80 F ambient temperature.
After that, engine idle cycles like this: normal idle speed for about 5
seconds > sputters/slows down/some black smoke for about 5 seconds, back to
normal again, continuous cycle. If under load/mowing decent height grass,
doesn't happen. Mower happily cuts the grass without protest.
How do I fix the warm idle problem?