Lever next to throttle/gear shift lever

[JJB61Jon]

What do you call the flat lever that you raise when starting a cold engine ? Mine barely increases the revs , is there an adjustment for it.
1989 Yamaha 175

 

[Bondo]

Ayuh,...... "Throttle only" lever,....

 

[Chris1956]

Cold Start lever. The Yammie forum likely knows your answer. Post the make of the control box to help them.