Confused by wiring

[RD350NL]

Hi all

I'm a bit puzzled how the turn indicator light should function. FYI This bike is new to me and the light didnt ever work since I have it.

Situation: All 4 blinkers flash but the turn signal light doesnt flash.
What I checked: Put 12v straight on the wiring to the indicator light (ground + 12v) and the light came up.

I checked the wiring diagram but it looks like there isn't any ground going to the turn signal indicator bulb. How is this supposed to function? From the looks of it 1 wire is for left positive, 1 for right positive, but where does the ground come from?

Thanks for the insights already..

[m in sc]

the indicator needs to be an incandescent bulb. ( if it's just 1) one leg goes to the left hot ts wire, the other goes to the rh hotvwire. hot wire is the 12v feed to the turn signal. dark bn & dk green. my tzr is the same fyi. it doesn't have a ground, persay. 4th bulb up from bottom, correct? green and bn wires

[RD350NL]

Thanks, that clarifies!

[Pravin]

the indicator needs to be an incandescent bulb. ( if it's just 1) one leg goes to the left hot ts wire, the other goes to the rh hotvwire. hot wire is the 12v feed to the turn signal. dark bn & dk green. my tzr is the same fyi. it doesn't have a ground, persay. 4th bulb up from bottom, correct? green and bn wires

Yes we do the same way in India as well , the Indicator picks ground from one leg and power from opp depending up on where you flip the indicator switch