Yamaha Roadstar 1700 Midnight sticky shift lever

Hello. I found several Yamaha motorcycle electric wiring diagrams this site:
https://www.motomanuals.net/

please replace float in the carb.

Any oil that is JASO MA certified motorcycle oil. 10w-40 for cold climate. 20w-50 for warm climate/touring. Car oils use different additives. Do not use any oil that says Energy Conserving on the label . It will shorten the life of your wet clutch and transmission gears. If you use Synthetic oils, they will help your bike run cooler and shift easier.

not a throttle valve, but the float needle valve that shuts the fuel off with the float. the only cure for the sticking floay valve is to remove the carb and clean it.

roadstar seats remove from the key switch, turn left "without" pushing down on the lock cylinder, and you will hear the seat release from the front of the drivers pad.

Yes, it wil. It comes from the vapor recovery system. Avoid toping off your fuel tank. on fill ups.. Worked for me Good uck, Ned.