We want you to have a great experience so we are continually adding videos for assembly (guide only), routine maintenance, and troubleshooting. Click Here for Replacement Parts Single-Seat Go Karts Spitfire (Mud Monster) Gas – Changing the Spark Plug Spitfire (Mud Monster) Gas – Adjusting Governor & Throttle Cable Spitfire (Mud Monster) Gas – Adjusting the Chain Spitfire (Mud Monster) Gas – Bearing Change Assembling the Go Kart – Electric Version Spitfire (Mud Monster) Tire Pressures Mototec X-Series Dirt Bikes Mototec X1 110cc Dirt Bike Assembly Mototec X1 / X2 / X3 110cc Chain Adjustment Mototec X1 / X2 / X3 Oil Change Mototec X3 125cc Dirt Bike Assembly Ride-on Toys Monster Truck Ride-on Assembly Pocket Bikes Pocket Bike Assembly and Adjustment Quads Safety Removal – 36V Quad Fuse install – 36V Quad Wheel Squeak / Brake Adjust – 36V Quad 2-Seat Go Karts Chain Adjustment during Setup Safety Removal – 36V Quad