If you want a longer lasting, more powerful, more reliable engine the AX is the twice the engine the LA is. It has beautiful transition from low to high speed and it just purrs. The LA is on ok engine,, it starts easy, and runs ok and all but if you have $50 to spare I would go with the AX. It will last your several times longer then an LA and its just better made. I have had both and the LA just isnt the quality engine the AX is..... but, it will do fine for the money.