i have a 15(?) year old fastrak. it has always had a small oil leak as oil would get all over the outside of the engine and collect dirt and dust. it was never bad enough to even notice it on the dipstick. never had to add oil between changes. didnt smoke like it was burning oil. we used it at the end of last season and parked it in the shop as usual. was out in shop a few days later and huge puddle of oil on floor and none on dipstick. i am a maintenance mechanic but i dont have much experience with small engines. i figured it was probably a seal or gasket somewhere. any help would be greatly appreciated. thanks