The 10l one just about fits a full bank of 4 bike carbs in one go if you omit the basket. The heater is poor so use hot water and mix in your cleaner. The unit will maintain it. 30 mins is your lot when it comes to time. I soaked mine at 80 degrees, the max for the unit for 2.5 hours. Came out as clean as a whistle after sitting for 10 years with fuel in them.The bike wouldn't run before and fired first time after cleaning.Worth it to avoid the hassle of sending parts away.