Well, I finally had time to break the 600-mile mark on the new GS this weekend, and it's time to take it to the stealership for the 600-mile service.   The bike runs GREAT once it warms up, but it seems to take much longer than the '97 did.  It doesn't really run smooth (it misses and/or stalls when you give it any throttle) unless I warm it up 10 minutes, or warm it up 7 minutes and drive VERY carefully to avoid stalling it for the first couple of miles.   The '97 was happy with a 3-minute warmup.   I don't use the choke for more than 90 seconds.

Does the addition of the oil cooler slow down the warmup process?   Or would it be a carb adjustment issue?  Should I run it with the choke longer?  Any ideas?   :dunno:

Was the 97 re-jetted or stock? If it was rejetted that would be why the old one warms up quicker. If not I'm not really sure. Mine took forever to warm up. Have yet to test the new jets, but we'll see.

-BigTwin-

The '97 was probably not re-jetted.   It seemed to be almost completely unmodified when i bought it.

You don't use the choke > 90 sec on the '05?

I remember reading that "proper warm-up" was something like keeping the idle around 3.5k for a few minutes.

I try to keep it around there until it will idle around 1.2k-1.5k with no choke...  Sometimes I'm lazy and ride off with the choke on.

I always start it with the choke keeping it just under 3K, give it a little under a minute for the oil to circulate, then ride it with that amount of choke on until it idles by itself.  On all three, it generally took about 5 minutes, very grossly.  Engines generally warm up better under light load.

Damn, even on a cold [for so cal] day, I give it full choke, fires up, back out of the garage. When I get out of the appartment complex(1/4 mile) i take the choke off and it idles fine. I guess that's probably because I don't think it ever gets below 70 in my garage...

So, the solution to the long warm up, is move to so cal

People from SoCal are not allowed to weigh in on threads about warmup or warm/waterproof gear.  

You should let it idle at around 3k for a little bit while you put your gear on, then ride it a few blocks with that amount of choke. After a few blocks turn the choke off and give it a little longer to warm up. It takes 15 minutes to properly warm any bike up, no matter what the temperature is.

One thing that will help you is to open your air/fuel mixture screw out to 3 turns. It will idle smoother and will correct the low-end leanness that comes from the factory. Be careful though. If your bike runs perfect from startup, it means that when it warms up it will run too rich. Carbed bikes take time to warm up, that is their nature.

It takes my '05 about two minutes to warm up when choked to idle at 3k-3.5k RPM.  Then I ride down the road and she is good.  I always light a cig, zip up, place gloves on seat and helmet of passenger peg, fire the GS up and by the time the cig is done i am ready to ride.  It does take longer when cold, coldest it has been here so far when I left work was 29 deg F.

Waterproof gear? Whats the point of that? I like perforated gear that helps get the sweat out, not lock it in, duh!

I always full choked to start it, then left it there until the bike hit 3500rpm. From there, I set it to half choke and rode for about 5-7 minutes, then turned off the choke entirely.

It still took about another 15 minutes for the bike to warm up well, and another 30 minutes of hard riding to reach the point where the bike was smoothest.

I live in NorCal, where it's about 60 every day, and it still took forever.

That's not normal, IMO.

Seems a little long to me...  When it's 60, my GS warms up pretty fast.  I can usually get it to idle with no choke by the time I get my gear on...

At 45, it's not even warm by the time I get to work.  

First things first, if it's only just done its 600, back to the dealer with it, if I were you i would not take a screwdriver of a wrench to it other than for the routine adjustments mentioned in the user manual.

Well, pull your plugs. How do they look? Black? One, both? My choke likes to stick unless I press on the choke slide on the actual carb after turning the lever off. Not a big deal to me, but it will make it act like it's not warmed up b/c it'll be running way too rich if the choke is even just a little bit on...

trey

Quote from: RoadstergalThat's not normal, IMO.

+1

RRitterson - What is your idle at after a good long ride?