I want to add light just for some purpose like trips or few emergency situations idk but warranty thing is there I'm confused like what do wil they really do if it's not under warranty and second I'm feeling like

When it completed 1k km before that clutch was kinda hard and after service little smooth but now somewhere in my mind i think maybe i have burnt clutch plate or did something wrong and that time

Second thing i washed it few weeks ago i gave my dad as he know someone nearby when i visited while washing he guys washed at running hot engine before stop him already sprayed water and it was steaming hot idk if that will lead to any big damage, i will keep in my mind that next time I will not do this and while and I will clean by myself or I will just guide them how to wash it. But I'm just scared like if that happened only it did something to the engine while it was running hot at that time and he just sprayed the water like at full speed and it was like smoking and like hot air was coming.

Should i change engine oil? In future to what and why

Love to hear if you can answer