Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions
In this tutorial, we will see how to drain and replace the coolant on a KTM RC 390. First, remove the left side fairing to access the radiator cap; then unscrew the water pump screw to drain the old antifreeze, as shown in the video. At this point, unscrew the radiator cap and pour in the new coolant until it reaches the maximum level; start the engine to circulate the fluid, topping up if necessary!

Updated on 8 June 2026 by ScegliAuto

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