Hi guys, im fairly new to RC and i bought a CT-5. After i got it i decided to upgrade to a RBInnovations air filter and i also added a hyper valve for the fuel-to-exhaust line. Now it will simply not start regardless of how lean or rich i tune the motor. It will start and run idle for 2 seconds, then it will accelerate by itself faster and faster for 5 seconds and then shut off. I have checked the glow plug and its fine. I prime it to the right amount and i dont see any leaks on the fuel lines. Any help will be appreciated.