• Jun 20, 2026 2010 Yamaha Fx Nytro Fx10z Fx10rtrz Fx10rtrsz Fx10xtz Fx10m53z Fx10m53sz Fx10m62sz Snowmobile Service Repair Manual will detail the correct spark plug type and gap specifications along with instructions on how to remove inspect and replace them if necessary A fouled or worn spark plug is another common cause of rough idling 3 Check the throttle cables The manual will show how to check for proper cab By Marco Gusikowski Jr.