Yesterday I started up my motorized bike for the first time and I had to use starter fluid because it was giving me some trouble which doesn't happen on my other bikes. But I said maybe cause the engine is still new. Well I got it started and I rode it for 15 minutes about. Then today I went to start it and it wouldn't start. So put some fluid and it started right away. Please I need help. Should I ride it more to get it warmed up ????