2 cycle compression ......

And built in on many Mikuni and Tillotson regulator carbs. (as well as Walbro and likely half a dozen other more obscure brands)

head. The head and cylinder are one piece and bolt to the crankcase. Nearly all small 2-stroke engines have one-piece "jugs."

My 2 stroke .049 model airplane engines from my childhood had removable heads. ^_^

TDD

ate head. The head and cylinder are one piece and bolt to the crankcase. Ne= arly all small 2-stroke engines have one-piece "jugs."

And the simple way to check for bore/piston damage is to pull the exhausst and take a look.

Harry K

head. The head and cylinder are one piece and bolt to the crankcase. Nearly all small 2-stroke engines have one-piece "jugs."

i used to rebuild stihl back pack blowers fairly often. They are all one piece.

head. The head and cylinder are one piece and bolt to the crankcase. Nearly all small 2-stroke engines have one-piece "jugs."

Actually, all I had to do was look in the exhaust port to see the piston. ^_^

TDD

head. The head and cylinder are one piece and bolt to the crankcase. Nearly all small 2-stroke engines have one-piece "jugs."

Quick survey of ten chainsaws, three weedeaters, fourteen gasoline model airplane engines, and two snowmobiles: ALL have an integrated cylinder and head (aka jug) that bolts to the crankcase.

Nothing new has a separate head. You either have some very old equipment or you're making it up.