"Douglas F." wrote in message
news:1123260963.17dc67decce94f085485bda00806f99d@t eranews...
I have 1988 mtd riding lawn mower that bogs down when into thick grass.
This time of year it is about 75% thick grass. It has a BS 12HP engine on
it and I have tuned the carb properly. Is it a rebuild probably? Or can
something else be tried?

I'd go through and ensure the blade is sharp, the underside of the mower
deck is clean, the ducting and bags are clean. I replaced my standard blade
with a "high lift" blade on my John Deere and it made quite a differance.

Barren