Handlebar switch - Yamaha YHA 205
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
Buy a wiring harness for this switch
I extracted this information from Leon Karlak off of the old Yahoo! Loopframe_Guzzi news group (which has now moved to Groups.io).
Any 22 mm or 7⁄8 inch handlebar switch can be fitted, but period correct switches are more difficult to find. Fortunately, Yamaha still has a nice unit available. Drop by your local Yamaha dealer and pick up part number 396-83972-11-00 (YHA205). This switch was originally fitted to the 1970's RD 125.
Charles Hamer was kind enough to send me the wiring code cross-reference to make installation on our V700, Ambassador, and Eldorado models quick and easy.
|Function||Yamaha YHA 205||Moto Guzzi|
|Horn (wire to distribution panel)||Pink||Black|
|Right turn signal / turn indicator||Dark Green||Yellow or white/black|
|Turn signal / turn indicator (live wire from fuse panel; goes through flasher unit / blinker unit)||Brown & White||Purple|
|Left turn signal / turn indicator||Dark Brown||Yellow with black tracer|
|Running lights / parking lights (tail light, gauge illumination lights, etc.)||Blue||Gray with red tracer|
|Headlight high beam||Yellow||Green with black tracer|
|Live wire from fuse panel||Red & Yellow (can be faded, look close)||Brown|
|Headlight low beam||Green||Green|