Its a timing chain guys not a belt .
Your engine is out of sync stop starting it you will bent a valve (its not a valve free clearence engine)
They have timing mark hole on the engine . Just go on youtube they have a tons of video that will explain you better than the shop manual how to replace the timing chain at the right place . Maybe when you do that you could check whit mr. Rpm for the stage 2 brp Cam upgrade the engine is entirely a brp engine built cheaper ( lot of odess ,cf moto and hisun owners replace this engine for the brp engine whit ecu
If you're thinking of adding more power to the existing headlights, you're likely out of luck, without extensive modification. But I'm no expert.
I'd recommend a light bar. They've got some really nice aftermarket stuff out there. They come in all sizes and shapes. Installation is usually plug n play.