The screen was for two purposes, not so much fingers but keeping out grass and rodents. I will find it and post a pic.
And in Oz, snakes.
Seriously - the mechanic in my family business once found a small tiger snake wound around the flywheel fins of a Briggs. Which explained why it was hard to pull over. Fortunately he was a very strong bloke, so the snake got a bit minced, before he took the cowling off!
