The RC valves are accessible without taking the barrels off and from the outside, it is an easy enough job to do for the novice mechanic if you go carefully and follow the manual or guidance.
There are guides written on here if you use the search function and term "RC Valve Removal".
What mileage do the valves have on them at the moment?
You know your bike best but is there a chance that this is just a case of a non-optimal battery? NSR's like new good quality batteries full of power to cycle the RC servo motor prior to starting.
Which warning light is showing?
And my final question, please let me buy your bike! 🙏
