Two stroke quick repair.  This is the same way we cure worn two stroke cylinder bores quickly.  Position the piston half way down the bore. Then pour approximately 50ml down each empty spark plug hole and allow to drain down and settle the CSL particles down around the piston rings.  This is just the same as doing a dry/wet compression test - any mechanic knows how to do this.  Then use the starter to turn the engine over a few times before replacing the spark plugs and starting the engine.  It will smoke for a while then hopefully it will cure the compression leakages and improve emissions and power.