Quicker warm-up on 2001 GS500?

[BigTwin]

Well I work at a motorcycle parts store called Iron Pony and we all ride frequently, but after a 6 hour shift we all get ready to leave and they all have fuel injected bikes that warm up and ride after about 30 seconds and I have to sit there for about 3 minutes for my bike to warm up.

I also hate warming the bike when I am running late and have to wait for it.

Is there a simple way to help it warm up quicker with out completely re-jetting? I will also be putting a Srinath flange (w/choker) on with a Wileyco pipe along with my Bob B Advancer.

I am completely against rejetting (at the moment) because I am a complete noob with carbs and won't mess with them until something goes wrong (hopefully that never happens).

And I have an 01 so I don't know if that changes things since the carbs changed after the 2000 GS.

THANKS to ALL who have any input, BigTwin

[weaselnoze]

being that your carbs are the 01+ carbs i dont know too much.  i believe that upgrading the pilot jets affect the warm up time.  when i rejetted, warmup takes less than a minute.  i know u are scared to touch the carbs but let me tell you with confidence that its not as hard as it looks.  when i did mine, everything came together and it made sense.  if u have a brain, you can rejet.  ohhh and the benefits....!

[Dragonfly]

I am very carb dumb as well.
I found the GS carbs to be very simple and straight forward. Not very complicated at all. Just make sure not to loose the little washers on top....

The most difficult part is making sure to keep track of what hose goes where.

[weaselnoze]

The most difficult part is making sure to keep track of what hose goes where.

:lol: thats so true.  just mark them with tape or something. thats what i did.

[TheGoodGuy]

to fix warmup issues, just change the pilot jet from 17.5 to 20.. that will fix it. Mine warms up in about 30 seconds or so.

I am still getting the jetting setup right, so we can have a srinath like solution. Mine is running a bit lean in teh cold. I need to shim the needles or go one size bigger. Give me a few weeks i will have the end result.

[BigTwin]

Well I read somewhere a while back (I think) that warm up is made shorter by adjusting the mix screw, or shimming the needles.

Which one, if either works and how does one go about doing it? Meaning what exactly has to be done?

THANKS, BigTwin (CarbNoob)

[TheGoodGuy]

check the FAQ . i need to put a better write up.

[mp183]

I have a 2002 and I'm with you, don't rejet until you must.  I did at 15,000 miles because I had other issues.  After 30 seconds just leave the choke partialy on and just go.   After a few minutes of riding just shut the choke off and monitor your rpms whey you come to a stop.  Unless you live in an area with lots of stop signs or lights this is an easy solution.
Only in real cold weather should you warm it up for 3 minutes.
Mike

[Mountaineer]

I have a 2001 also and I agree that warm up is much faster if you get on and start moving. Mine usually stumbles a little bit at first, but within about 2 blocks it smooths out. I let it warm up for about 1-2 minutes, then push the choke off and go. You can't expect to redline it cold so go easy at first and it will be fine.

My old GS400, almost identical to the new 500, seemed more cranky cold in its early years, but began to warm up faster as it aged. Or at least it ran smoother when cold.

Your instincts about not messing with the carbs is good. Suzuki takes a lot of trouble and care to set the bike up right, and no one short of a genius with the right technical gear is going to be able to match it. The purpose in having a choke in the first place is because it is impossible for an engine to run right under all conditions with any particular jetting. Enriching the idle mixture jets will enrichen the mixture under all conditions, wasting gas and increasing emissions. Mine gets 75 mpg average, and I like that very much. It runs great when warm.

[gavin]

Suzuki takes a lot of trouble and care to set the bike up right, and no one short of a genius with the right technical gear is going to be able to match it.

*snort* I'm sorry, coke just came out my nose.  Suzuki, like most vehicle companies, are profit oriented, not performance oriented.  The performance is easily improved by simple carb tuning.

Mine gets 75 mpg average, and I like that very much. It runs great when warm.

*double snort* 75mpg?  I don't suppose your commute is downhill... both ways...  

-Gavin

[weaselnoze]

i think u shouldnt snort coke nemore

[Anonymous]

They are EPA standards/requirements driven.  They DO do research BUT it's to get the best performance with the least emissions.  And yes, as cheaply as possible too.  The more air/fuel you can get into the cylinders the better your performance will be.

And as for the 75mpg,  really?  Did you switch the front and the rear sprockets?  Did you put the rear on the front and the front on the rear?  That is incredible mileage!

[gazingwa]

I got 68 going to Greensburg PA this weekend and tooling around, 200 miles total with 65 miles riding 2 up through hills and some expressway riding. If i had been lighter on the throttle 75 wouldn't have been too out of the question for the 1 up portion

[Fint]

My Gs500 used to take several tries to start, and would take several minutes to warm up. I had the carbs etc right, but my exhaust valves were *very* tight. If all else fails (and you have a few thousand miles on it) check the valve clearance.

[BigTwin]

Well, my bikes only got 700 miles on it.

But should switching the pilot jet from 17.5 to 20 help alot?

If so, I will do it. How hard is it going to be to change (never looked at the carbs yet) and is it just an unscrew the old ones and screw in the new ones type deal.

-BigTwin-

[Mountaineer]

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Mountaineer wrote:
Suzuki takes a lot of trouble and care to set the bike up right, and no one short of a genius with the right technical gear is going to be able to match it.

*snort* I'm sorry, coke just came out my nose. Suzuki, like most vehicle companies, are profit oriented, not performance oriented. The performance is easily improved by simple carb tuning.
--------------------------
Is there some logic in here? What is it about making a profit that causes Suzuki to lower the performance of the GS500?
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Mountaineer wrote:

Mine gets 75 mpg average, and I like that very much. It runs great when warm.

*double snort* 75mpg? I don't suppose your commute is downhill... both ways...  
---------------------
Just filled up after a 150-mile ride that included interstate running at 70-80 or so, as well as horrendous attempt to reach a lake through a coal mine operation, had to turn back due to massive ruts, rocks and mud.

I had 278 miles on the odometer and added 3.9 gallons. That's 71.3 mpg, probably the worst mileage since I bought it used last year.

[RedShift]

... After 30 seconds just leave the choke partialy on and just go.   After a few minutes of riding just shut the choke off and monitor your rpms whey you come to a stop.  Unless you live in an area with lots of stop signs or lights this is an easy solution.
Only in real cold weather should you warm it up for 3 minutes.
Mike

+2

I'm with Mike.  My 2001 runs perfect when warm so I don't have any interest in playing with the carbs and loosing the fringe benefit of great gas consumption.

In cold weather it's a bit of a bother, but above 50F (10C) you can just leave some choke on 'til you warm up or consistently ride over 4000 RPM, then wean off the choke (er, enrichment).  Ride for 2+ minutes and you're warm enough.

Roy...

[gs2sv]

there is no need to change jets to get the advantage of faster warm up. "shimming" the needles works great. here is a great write up that I used when I did ours.http://motorcyclistonline.com/howto/jetting/
after you do the shim you will have to play with the fast idle because it will run a bit rich when warmed up. other than that it should accomplish what you need. worked wonders on our 01. good luck.