Had a problem with my riding mower yesterday. The mower is a Deere 210 with a 10 HP (real HP, not today's bogus HP) Kohler engine. It's also 32 years old. I looked on the Kohler engines site for any manuals and only found ones for the much newer engines.
Not expecting much, I sent an email to them from the "contact us" page on their site, with the info on the engine and inquiring about manuals. This morning I received an email with links to PDFs of the complete owner / operator manual, service manual and to the parts department.
Very impressive getting that level of support on a 32 year old product. I've dealt with a few companies that didn't want to know about 2 year old products, much less 32 year old ones.
Pete C.