Hi Rc Gas Fans. Hey I`m havin trouble with this RedCat Engine. 4Get its a RedCat Ok, I no theres mixed reviews on it LoL Anyways I had it runnin Great 4awhile just sittin there LoL Its New an still tryin break Engine in with out Killin the Engine. Its weird though I finally get it running let run 2 out Fuel. Y wont it start back UP and it Bcomes hard to Pull start it, When it was easy at times. Sometimes I can feal the difference N the pull rope. Thats My ? Y does it go from easy to pull to hard? Whats going on N Engine to do that?