Hello Peter99. I am Lloyd Lautner and I make the Leather Primer Seals and installation instructions with diagrams. Just send $10.00 cash and an SASE (Self Addressed Stamped Envelope) to me:
Lloyd Lautner 9289 North Long Lake Road, Traverse City Michigan 49685. I had to raise the price to 10 bucks a couple years ago because I have a limited number of seals and it is very hard to find more of the proper oil tanned leather to make more. More good info at: pochefamily.org/outboard except the old price for the seals has not been updated on that website.
Peter. You won’t need any other seals for your HD25. Just be sure to clean out the one way ball valve and stainless steel screen at the bottom of the carb. I tried to answer your email to me but Mailer Daemon dumped it. If you have any questions, just call me on the phone. 231-929-7479