The cause of what?
No one has had a head gasket failure that I have seen. Are you still trying to say there is something wrong with the temps of your bike, because it goes from 150-185??
2016 Ninja H2 - Worlds Quickest and Fastest. 1/4 - 7.901 at 181mph - 233.6mph in 1 mile. CMP Built Motor, Brocks Performance Stage 2 Package, MC Cycle works Intercooler, Slash-Cut Exhaust, DNA Filter, PC5, Brocks Lowering Links, Brocks Front Strap Kit, BST Rim, Adams Performance Swingarm, Zero Gravity Corsa Windscreen, Evotech Radiator Guard, R&G Undertail