This carburetor rebuild repair tool kit is designed for use with DRZ400E, DRZ400S, DRZ400SM, and DRZ400 models.It includes tools to assist with carburetor maintenance and servicing.Carburetor issues can often be identified by engine starting behavior: a dry spark plug may indicate insufficient fuel delivery, while a wet spark plug may suggest excess fuel.During , performance issues at different throttle positions can help isolate the affected system—idle (0 to 1/8 throttle), mid-range (1/8 to 7/8 throttle), or speed (full throttle).This kit supports routine servicing of these systems.Product type: Motorcycle Carburetor Rebuild Repair Tool Kit.Material: Rubber and metal.Quantity: 1 set.Weight: 0.027 kg per set.Compatible with models: DRZ400E, DRZ400S, DRZ400SM, DRZ400 (applicable years vary by model).