1999 GSX-R600 Suzuki TECH QUESTIONS

I've had my GSX-R600 for three months and love it. Since I have had
it, the exhaust smelled like wet cement. When it was cold, hot or
warming up, whenever. In three months I put 20 miles on it (long
story) Now, all of a sudden, the exhaust smells like when you ride
behind a newer muscle car that had the catalytic converters pulled
out, kinda rich and "wet" smelling, but like cold and "wet" as in
incorrect mixture, like an old lawnmower. I am second owner on this
bike and have known the bike and original owner since new in '99.
This bike is bone stock, aside from a Yosh slip on, mileage is under
9,000. Why would the exhaust smell change? I hate the rich smell, it
makes me mad. It does seem a little snappier, off-idle, the dead spot
that WAS around 3k is gone, not like 3k is soo important. Please
don't mail me and say "Well, I don't know anything about GSX-R's but,
you probably wiped out your pistons" or, "I'm guessing here, but,maybe
your jetting's way off". If you don't know, don't respond. I'm
stumped. Mark

well, IMO there are only a few reasons why yer ex "smells" funny,...
1) somthing is is corroding inside,.. along with some moisture or oil, gas
etc,..
2) this the most common,.. the mixture is off enough to emit wierd smells,..
3) some types of gas have some nasty smelly additivs, that stink,..
thats pretty much it,..
dr speed
   >>>I've had my GSX-R600 for three months and love it. Since I have had
it, the exhaust smelled like wet cement. When it was cold, hot or
warming up, whenever. In three months I put 20 miles on it (long
story) Now, all of a sudden, the exhaust smells like when you ride
behind a newer muscle car that had the catalytic converters pulled
out, kinda rich and "wet" smelling, but like cold and "wet" as in
incorrect mixture, like an old lawnmower. I am second owner on this
bike and have known the bike and original owner since new in '99.
This bike is bone stock, aside from a Yosh slip on, mileage is under
9,000. Why would the exhaust smell change? I hate the rich smell, it
makes me mad. It does seem a little snappier, off-idle, the dead spot
that WAS around 3k is gone, not like 3k is soo important. Please
don't mail me and say "Well, I don't know anything about GSX-R's but,
you probably wiped out your pistons" or, "I'm guessing here, but,maybe
your jetting's way off". If you don't know, don't respond. I'm
stumped. Mark