Please help with SMALL ENGINE REPAIR?

Basic engine operation can be divided into four stages. These stages (listed in the proper order) are
A. compression, power, rotary motion, and exhaust.
B. exhaust, intake, explosion, and ignition.
1. C...( Also known as....Suck, Squeeze, Bang, Blow).
2..A...
3..A..
4..B..
5..None.. 1 HP = 550ft-lb/sec = 33,000ft-lb/min

∞ Diamond Products 10164 Core Cut SC8116 Gas Hand Held Saw with Oil with 16 Guard on Cool Savings