Gear shift indicator

[taz112]

I have a 1986 and the gear shift indicator and neutral light works when on the side stand but not when up right. Any one have this problem? How can I fix?

 

Sent from my NX785QC using Tapatalk

[Prairiehammer]

Commonly, the brass pin that slides around on the shift indicator "switch" gets worn and flattened from its rounded shape when new, resulting in intermittent contact. The pin is spring loaded and the spring may become fatigued and not supply sufficient pressure to make good contact with the gear shift indicator switch.

Replace the pin. Yamaha calls it a "neutral point", old PN 278-18542-00-00, new PN 4UN-18542-00-00.

While you have it apart, replace the spring as well, old PN 90501-06022-00, new PN 90501-06022-00.

Edited August 18, 2015 by Prairiehammer

[dingy]

I would tend to think that the diode pack has an issue. Located behind the headlight. (I think)

 

What Praieiehammer indicated would not explain why it works side stand down.

 

Link to wiring diagrams. http://www.venturerider.org/forum/showthread.php?42384-1st-Gen-Wiring-Schematics-1983-1993

 

Gary

[Prairiehammer]

What Praieiehammer indicated would not explain why it works side stand down.

 

You may be correct Gary, but there have been more than one instance when the "neutral point" fails to make reliable contact with the copper contacts on the gear shift indicator array, simply because of its worn, shortened size and shape and/or because of a weak spring. While on the sidestand the "angle of the dangle" causes the pin to make fairly good contact because gravity is pulling the pin into better position against the gear indicator switch contacts. When the bike is raised to vertical, the pin slides away from the indicator contacts.

[taz112]

How do I get to the contact to check it? Where is it located?

 

Sent from my SPH-D710 using Tapatalk

[Prairiehammer]

The gear shift indicator is located behind the middle gear cover, below the clutch slave cylinder. Three countersunk Phillips type screws fasten the indicator to the crankcase. Remove the indicator and the pin and spring should fall out.