Seconded, had a problem with my new genset 10 conking out due to low oil pressure with the manual giving a sticky oil pressure relief valve or faulty sender as the only problems that might exist in the TS list. Couldn't find a location reference to the valve in the nanual, but Adrian at Beta sent me a PDF stuffed with exploded drawings of every component of the base engine complete with part numbers & he told me where to look. To touch all the bases, he also sent me a complementary sender unit too! Top service.
My only teeny weeny gripe is the inability to get hold of pattern replacement air filters for the genset & my 75, so until I do, I'm going to have to stump up the somewhat eye watering prices for Beta originals. Still, changing them only once a year or 250 hours isn't bad.
Great company.