Sure it will
Really though if you lay the parts out on some clean paper towel and visually inspect each one clean anything that looks suspicious.
The bearings and crank are susceptible to rust. the rust from these will do NASTINESS to the cylinder and ring or piston if ABC.
It is well worth the effort to clean it well.
Although the engineering of a good RC engine is complex the parts assembly is simple. If I can do an overhaul ANYONE can
A new O ring on the needle valve never hurt either.