[MT-2500]

First thing to check is rear brake lights for working good and bright.
And check with signals on left and then right side the off.

All turn signal bulbs need to be working good and grounded good for flasher to flash good.

Turn signal flasher and hazard flasher are separate.

Check for good power on both sides of turn signal fuse in IP panel.

Then check for power coming threw flasher to turn signal switch on purple wire.

If flasher power to turn signal switch and everything else like brake lights and dash lights and other electrical stuff working good then check for proper power from turn signal switch to turn signal bulbs.

There is a lot of problems with the 4 way flasher switch that may be made into turn signal switch.

Flip it on and off and wiggle and pull on and off and see if anything changes on turn signal switch operation.

Let us know what you find with these checks.