Choke gets stuck on my 84 Nighthawk 650

[evil0monkey]

First off I'm new to the forum and motorcycles in general so, hi. This morning i pulled the choke lever all  the way down and turned my bike on and let it warm up for a moment then when i pushed the choke all the way up my engine was still idling at 3000rpm (when i first start it with choke it idles at 2000 and works its way up which is how i judge if its ready to ride once it reaches 3000) and i stopped the bike and started it back up, it was still idling at 3000rpm so i wiggled the choke all the way down and then up this made my rpm go down to 1500 and then i rode it for a while and it went back down to the normal idle(1000rpm). Can anyone help?

[hppants]

Failing choke cable?

[ExTex]

Perhaps the choke cable can be lubricated, or the choke linkage down at the carbs.

The linkage rotates to pull the "choke" open on each carb.

I'd pull the seat and gas tank and take a closer look at the carb linkage.

The choke cable may be rusted, so you will have to allow oil to dribble down the inside of the cable
to lubricate it.

650s are great but they take some attention, especially when you first get one.

Ride safely,

[ERAU-944]

+1

Gently take the left hand controls apart, and dribble some lube (WD-40 is NOT lube!) down the cable, and after 5 minutes or so of soaking, work the cable in and out.  I myself am liberal with the lube, and place a rag by the lower cable end.  You will want a good cable lube that won't evaporate like wd-40.

Welcome to the forum!  You've found the right place for help working on your bike, with our help you will enjoy that bike for a good long time.

[Tryvelcro]

I use silicone lubricant, dunno if that's good or bad but it doesn't gunk up like some of them.

[ERAU-944]

I use silicone lubricant, dunno if that's good or bad but it doesn't gunk up like some of them.

this is key.  you want something that will lubricate, but not disappear entirely (evaporate like wd-40) or gunk up like some thicker lubricants (rattle can white lithium grease).  i actually used some corrosion-x (a thin oil corrosion inhibitor for aircraft) to do my throttle cables, and it worked very well.  PB blaster should work, but again i'm not sure if that evaporates or not.  after doing a bit of homework, i'm sure you can come up with something that works for what you need.

[HawkFuzz]

 

A good dry lube is graphite.  It is pretty much like ground up pencil lead and pretty messy but won't dry up. 

[evil0monkey]

Thanks everyone ill give it a try this weekend