I have a 25 merc tiller that I ran on the muffs yesterday in the driveway, it was the first time running it since getting it out of storage. Today I noticed a small puddle under the motor that felt like oil but it didnt really look like LU lube. It looked to be coming from inside the prop/exhaust area. The boat sat all winter and didnt leak a drop so I'm a little confused as to why it would start leaking just after running it, anyone got any ideas?