The other day I felt it was time to purchase a new filter for my scooter. I noticed that a screw was missing from the filter mount. The bolt appears to be an M5 X 1.50 x 20. However, as seen from the attached picture, the thread size is not 1.50. In fact, it doesn't match any common size thread. Nor does it appear to have a consistent thread pattern. I can only guess that it is some type of a self-taping screw. I tried to order the part from the KYMCO dealer but the parts person said KYMCO adds a $20 handling fee to a $2 part. After being directed to a local Lowe's store, I confirmed that they had nothing that would be identical. (As a side note, the KYMCO dealer didn't seem to believe me that all scooter parts are metric with the possible exception of the mirror mounts.)
Comments? As is sometimes the case, one missing screw will not let the air filter fall off. Oh, well, . . .
By the way, the new $29.81 air filter comes with a P/N 17211-LGR5-E10 but doesn't come with a pre-filter (as does the OEM unit) and the parts listing doesn't show an available pre-filter.