Sure - not a problem with any current engines-
also -most current stuff starts so easily that a glove and a flip against compression gets em going.
Starters are a double edged sword-you can bust a small engine -cramming them into a wet cylinder.
OS70 is my all time favorite four stroke . It simply is quality at it's best and dead reliable.IF you put the tank where is is supposed to be!
If you are new at the game - you may care to try this approach:
Fuel - use a heli blend -15-25% nitro-lotsa oil.
use only very hard wood or nylon filled props . NEVER use a plastic backplate spinner.
Make sure that the prop/spinner assy is tight -always . a piece of 600 grit sandpaper glued to back of spinner backplate is a good idea.-this is to prevent slip between the drive washer and the spinner backplate.
Use only a big nicad to start the engine .
Use OSF plug-
hook up fuel system so that you can easily check for fuel flow-an external loop may look goofy but it sure makes setup easy.
Always choke/hand flip cold engine -without glow attached , until the engine starts to feel loose -or a little wet.
Put engine to idle, choke off now -hook up glow .
carefully pull prop thru (remember the glove) - It should "bump".
give the prop a smart back flip - it should start.
I have had at least 4- 70 OS engines more OS 1.20s of all types and this procedure is 100%.