Not sure if anybody can help with this one. It is a Briggs I have had sitting here for a number of years, it was originally on a Sprinter with a bar blade and it ran well but every now and then it would give a very angry kick back and would rip the pull start out of my hand. I put is aside and decided I would try it with a real 4 blade blade carrier. I have tried this and it is working fine but as before every so often it decided it won't turn over and the resistance is strong enough to lift the mower up off the ground,(at least it no longer tries to rip my fingers off) pull it again and it will start straight up. When it is running it seem as if it has higher compression than all the other Briggs by the crispness of the exhaust sound. Any thoughts about fitting a decomp plate?
