I am a residential owner of a 23HP LQ Lazer Z w/ 60". I beleive I bought it in 2001. One awesome mower. When I picked up my mower from the dealer, they had to adjust the carb, as it would not run smooth. Everytime I use it, I have to have the choke out 1/2 to 3/4 for a couple minutes...more when it's colder out. Is this normal? It always seems to have run a little rich (smells like gas) even after I have mowed with the choke off.