Why did Yamaha put the dip stick there? Anyway, went to check the oil before a ride and when I took out the dip stick there was dirt in the recess above the threads (The bike was clean so I didn't check it with a big clump of dirt there, FYI, so not sure why or how the dirt got there ). I cleaned out the dirt carefully but wonder if some dirt fell into that area, tank, resevoir (not sure of the name). Normally I would just change the oil and filter however I also have the other common problem (about 50 threads on TT about this) of the oil drain cover bolt stripped. Well, its not completely done yet but I fear the next time I take it out it will be toast. So I was hoping I could ride one more time before taking and having a time cert put in. My question is, if dirt (very small amount if any) got into the that area (tank I guess), is it critical? I am not sure about the oil flow path, does that oil go to the filter from there? What do you think?