let me start by saying I know nothing about bikes I just got the urge to get one and bought a 06 gs500f last month from a local dealership with 4k miles .  Being a new rider I have put about a 150 miles on it in a month and never went more than 5 miles from my house and never got over 60mph.  The bike has been running great but I noticed an small oil leak 2 weeks ago and the dealership agreed to fix it for me.  So tommorrow here in NC the weather is going to be mild so I was going to ride it there, no such luck took it out this morning and it wont go over 30 it is spuddering and has a funny smell at the muffler are like its HOT but he engine sounds fine and no smell of oil burning. I checked the oil and made it to the gas station and filled up still no luck its running like shaZam! still,  when i started if cold I noticed it didnt rev up when the choke was out like it normally does.  Any help would be greatly appreciated.

Why not take it back to the dealer and get it fixed under warranty?

06 4000miles=no warranty

I've got  94 and that's happened twice.Start and leave choke on in driveway.Check with your hand on the head to test the heat.When it's almost to hot to touch.The bike should be ready to ride.Don't cut the choke off! Back it off about a quarter if the revs are over 2500rpm.She's a cold natured beasty.
The times she acted up on me was just my lack of warm up.Try it again..

I tried letting it but it wont stay running on its on,

also forgot ot metion it has a sort of hiccup when it is running then it finally hiccups and cuts off

Make sure the petcock isn't on prime...do a search on that.It can be a bugger.

thats the switch on the left side that says reg. and prime?  its on reg. 

sorry its on res.  tried it in all positions (on, prime and res.) no difference in the rough idle (hiccup)

It sounds like you might be running on one cylinder, and sending unburnt fuel out the exhaust.  (Any backfires yet?)

You could test the theory by pulling one of the spark plug wires while the bike is running.  If the bike continues to run exactly as it did before you pulled the wire, you have identified the non-firing cylinder.  In any case, replace the wire and pull the OTHER one while the bike is running.  If you're running on only one cylinder, the bike should DIE when you pull the wire from the working cylinder.

If the bike runs (but runs "funny") no matter which wire you pull, then throw the theory out with the bath water. 

kerry u are a genious when I unplug the wire from the right (brake) side the bike is dead, when I plug it back in and unplug the left (clutch) side the bike runs the same as before.  Now how in the hell does this happen overnight?

Hmmmm ... good question!  My guess would be electrical (rather than fuel or compression), but that still leaves a few possibilities:
   

• Bad spark plug.  If you don't have an extra plug, you can test this by swapping the plugs from side to side.  Use either the tool in your under-seat toolkit, or a regular 18mm wrench.
  
     
• Bad plug coil/wire.  You can test this the same way - by swapping the coils from side to side.  A bit of a hassle (especially with a fairing, I'll wager!) but it can be done without removing the tank.  Although if it were me, I'd unbolt the tank and scoot it back to get better access.
  
     
• Bad signal generator pickup.  I'm not familiar with the '04+ mechanism, so I can't offer a good test procedure for this one.... 
  
  In MY case this condition was caused by corrosion in a connector ... between the wiring harness and the signal generator assembly.  Let me know if you get to this point and you're still stuck.  I'll do some searching and pull up the old thread(s).

take it back to dealer mate. if there any thing like in england. they will fix it free of charge, under warratanty.

Quote from: Kerry on December 23, 2007, 08:48:16 PM
Hmmmm ... good question!  My guess would be electrical (rather than fuel or compression), but that still leaves a few possibilities:
   

• Bad spark plug.  If you don't have an extra plug, you can test this by swapping the plugs from side to side.  Use either the tool in your under-seat toolkit, or a regular 18mm wrench.
  
     
• Bad plug coil/wire.  You can test this the same way - by swapping the coils from side to side.  A bit of a hassle (especially with a fairing, I'll wager!) but it can be done without removing the tank.  Although if it were me, I'd unbolt the tank and scoot it back to get better access.
  
     
• Bad signal generator pickup.  I'm not familiar with the '04+ mechanism, so I can't offer a good test procedure for this one.... 
  
  In MY case this condition was caused by corrosion in a connector ... between the wiring harness and the signal generator assembly.  Let me know if you get to this point and you're still stuck.  I'll do some searching and pull up the old thread(s).
  

Excellent information ! Now, if we could get folks to actually consider no-spark instead of blaming the carburetors...

changed the plugs and it runs good again but the plugs were real black (oily) not like carbon black  and smelled like straight gas,  I am going to ride for a while and check the new ones

Good call Kerry... have to remember that one! Hope he got it straightened out..

I'm in Anderson, SC in the event you need a hand wrenching sometimes. But then that would mean you are stuck in Anderson and need help.

You might check the offended plug again after a couple hundred miles. If it is starting to look the same....

BTW Kerry almost always makes good calls.  The bovine community takes issue with that statement though. 

Quote from: clemsonfan71 on December 24, 2007, 01:14:27 PMchanged the plugs and it runs good again but the plugs were real black (oily) not like carbon black  and smelled like straight gas

The "straight gas" smell would be because the fuel wasn't being burned.  I wouldn't worry about that part, since the bike is running well again.

But the "real black (oily)" part concerns me.  Was it as bad as the middle entry on the right side of THIS CHART from the Haynes manual?

Quote from: clemsonfan71 on December 24, 2007, 01:14:27 PMI am going to ride for a while and check the new ones

Good plan.  I'd check it sooner rather than later.... 

by the manual picks definetly more carbon looking than oily, also man I really appreciate all you guys help with this matter especially Kerry