hi I got 2013 yz450 a few weeks ago. Everything was running right until i let it sit for 4 days and now the bike starts but shuts off to keep it on you have to stay in throttle does anyone know what it might be. A few friend told me it could be the spark plug. but I'm not sure
Edited by alexp96, October 16, 2015 - 09:10 AM.