For the second time this year, the plastic left turn trigger has broken on my 3090XP. While it is an easy and cheap part to replace, I am wondering what would cause this. It seems to happen after the heated handle grips are turned on and left on for more than half an hour. Is the heat weakening the plastic? Is the tension in the cable too tight? Is there something I could adjust or replace?
Here is a picture of the broken trigger. You can see the broken plastic and the loose cable:
Here is a picture of the right trigger for reference:
Thanks.