Hi Delta9, You defenatly made the right choice. You sound like you maintain your engines well I don't realy do anything special to any of my engines to make them last. Just after evey time i'm finished useing them i remove the exhaust system and air filter box and cap the engine with dust caps. I then remove it from the chassiss and spray the out side with some methlated sprits in a spray bottal and dry useing an air compressor. I then remove the back plate inspect the conrod and bearings. I use novarossi after run oil and make shore the engine is well oiled i don't skimp on oil. I then replace the backplate and seal the engine in a zip lock bag and put away and till i use it agen. The night befor i am due to use it i will take it out remove the carby and exhaust caps and drain the excess oil throught the exhaust port. That takes a cupple of minets to make shore that the engine dose not get to much oil in the cylinder when its first started after storage. Good luck Best regards Jeremy.