When I rotate my tiller handle to the fast position there is nothing to stop it and my gears become un-meshed. What part do I need to be looking for to fix this problem?
I honestly can't help ya, but since no one else has answered your post I thought I would. Try this website for parts lists and diagrams...https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1967&hp=20&model=FD21
Good luck man!
Chris