I'M 63, MESSED WITH CARS SINCE I WAS 15, BEEN A MECHANIC ON ALL SORTS OF PISTON DRIVE EQUIPMENT ALL MY ADULT LIFE. SOMETHING IN THIS ENGINE JUST DOESN'T QUITE SIT RIGHT WITH ME. I'VE HAD IT ONLY 6 DAYS NOW, 163 MILES ON IT. EVEN MY WIFE ASKED WHAT THE HECK WAS THAT NOISE WHEN I CRANKED IT AND LET IT RUN A FEW MINUTES. IT'S KINDA SLUGGISH FROM A STOP, UNLESS YOU JUMP INTO IT A BIT. RUNS LIKE A SCALDED DOG WHEN YOU REALLY JUMP ON IT, SEEMS OK THEN. FROM WHAT I'VE READ HERE, I'M AM GETTING CONCERNED, AS I DON'T KNOW IF THIS IS A NORMAL STRANGE SOUND OR NOT, HAVEN'T HAD IT THAT LONG. I WOULD APPRECIATE ANY INPUT FROM OWNERS. THANKS