Starting fluid is generally not recommended for use on a 2 stroke engine. Starting fluid does not have lubricating qualities unless they are added to the fluid. Due to the nature of a two-stroke engine lack of lubrication can be damaging. Two stroke engine lubrication is achieved by mixing oil with the fuel. If such engines are started regularly using starting fluid, they do not receive an adequate supply of lubrication to the cylinders and crankshaft.
If the engine hasn’t been started in a while, then the issues that this can cause multiply significantly. Starting fluid is a strong solvent and can strip any residual oil from the cylinder walls and cranks; this further reduces lubrication and causes significant engine damage.