looking for a knob for a 1976 johnson 2 hp motor. the knob in the center for Rich to Lean adjustment Model 2r765
Go to marineengine.com They will have OMC parts manuals online to order parts from. I just ordered a choke knob for a '68 6hp and it cost about 12$ from them.
If they don't have one, CALL don't email, laingsoutboards.com which is a salvage yard in New York. Very helpful guy will answer the phone and they ship fast and cheap. I've done business with them for many years but not needed anything for a year or so.
IF you still can't find one, go to aomci.org, find the free classifieds page, and post an ad requesting your part. The members there will take care of you quickly. (I'm a member and have always received parts help) YOu don't have to be a member, BTW.
Hope this helps, and watch your wake with that 2hp!
JBJ