I spent considerable effort to get an RG X (pull start) on my buggy. I had to buy a manifold for my pipe, space up the engine so it would fit and make a bracket for the exhaust to stop it melting my tank! Yes it cost more than a non pull start, and may weigh a few grams extra, BUT I'm glad I did it. I am very happy with how it turned out and it starts first or second tug on the string. If you like pull starts and can't be bothered with lugging a starter box about its a very good choice of engine. Just my 2 pennies worth!