Reply To: Where are the IAP sensors? – 2016 GT250R
Sounds like you have regulator issues and stator issues (both have their own independent issues (ie. Reg is probably under/overcharging at low and high revs which affects more sensetive parts like the sensors all over the bike and the ECU or the stator itself has an output that is either too high or too low. So have a look at the topic below and confirm with numbers what state your charging system is ?
Rectifier – How to Test Stator , Battery , Regulator – GT125R Carby
Ignore that it says Gt125R , the principal is the same for GT250.
If you can verify the charging system or fixed the charging system has gone stable now, then go for a longer ride (but carry a spare battery safely incase you need to swap it if heaven forbid you get stranded)
The general idea is to put the bike under some real world load to assess how its performing etc