If torx T100 isn't available, be careful with improvisation a new tool since it can damage the finish. Protect it with a rag between tool and part. Probably a big nut will be able to turn this cap. Below the one I've made to formula brakes.
...I'm using fork boots (gaiters). They keep all mud and dust out of seals and give some protection from rocks.
https://www.instagram.com/p/BjCt3t2Boo5/?taken-by=leocm74
Malcolm, you need to open the top cap and turn forks upside down. On coil side this will drain most of the oil. On dampening side half of the oil will be inside cartridge and it need be disasembled to drain oil.
Have Tech forks on a 2015 motorcycle. I completely disassembled the forks and changed oil 11 months ago. Do I need disasembly and clean it again or just opening the cap and draining old oil and putting new is ok?
Which oil you prefer? 5w or 7,5w?
If there a fail in right side engine will burn oil from gearbox and smoke badly. If there leakage from generator side will should de able to see some leakage under electic coils. But this usually happen on much older bikes....
Seems like your carb have some blockage. Return the settings for what they are before problem started and give a good clean with compressed air.
Install a gas filter since due the position of gas cap in this rear tank models, it is easy to get dirt inside gas tank.
