I hate to say this, but the early production run 35s had problems with the needle bearings on the wrist pin wearing through the retainer at an idle and dropping out into the powerhead. 5000 motors had the powerhead replaced under warrentee. If you didn’t do much idling they would last a long time. A couple low hour Big Twins were five years old when they went bad. If it was from that first production run, they got a new powerhead. Later 40 horse models got roller bearings on the wristpin.
