Hand starting Caterpillar high Ten 10 

my grandad had a stationary big cat engine, 6 inline, 270 hp or bigger, and I always stood beside him when starting it, moving the advance or decompressor, I cant recall, it would run for days pumping water for the farm,....god, I miss him...

don't let that kick back haha

I was almost certain that it was going to kick and break his wrist off.