Forums > Maintenance > 60 f650gs wont idle

That's happened to me a couple of times on my F650GS, then disappears.  I'm interested in any ideas as well.  Glad to know there's someone else experiencing this!

 NM

I haven't experienced this myself, thankfully (knock on wood). But my understanding is that our bikes are particularly sensitive to voltage fluctuations due to a dying battery. What's the state of yours?

Bad or going bad battery aside, have you tried disconnecting it (the battery) for 30 mins or so? Also, I've heard of the clutch cable being just out of adjustment enough to cause problems. 

Other than those things, I suppose it could be something simple/mechanical like a gummed up throttle body/carb (depending on which model you have), sticky throttle cable, an air filter that needs replacing, etc.

My $0.02 

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Scott (AKA GSlite. Isn't there some way to get your username changed?)

I had this happen to me and did some digging over at F650.com.

It seems that the throttle position when you start the bike is registered by the computer and is used to determine what a "closed throttle is". Thus, if your throttle is opened slightly when you start the bike, when you close it the throttle is past closed and the engine dies.

Restarting the bike with a properly closed throttle will solve the problem. You just have to wait ~10 seconds for the computer to play along (which is a lifetime in stop + go highway rush-hour traffic). 

We've got the same problem.  The problem began with a weak battery.  Replaced the battery, still does it.

Did all the other things mentioned here.

My choices now are:

1)  357 magnum into the computer chip;

2)  Haul the bike to the dealer and let them read the error codes.

I suspect that the throttle position sensor is amiss, and something is likely wrong with the O2 sensor or circuit.  The exhaust smells strange.

C

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401K? Retirement? Ha! Don't be ridiculous!

Csteinman said:

357 magnum into the computer chip

C, if you choose door #1, please take pictures. 

Sorry for the frustration though. Damn computers do seem to rule the world now.

Jack

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"There ain't no Devil, there's just God when he's drunk." -- T. Waits

I had this happen about 2 months ago.  Had been riding for about an hour or so.  Stopped to visit a friend for 20 - 30 minutes.  When I restarted the bike I was showing-off my new exhaust and revving the engine, then at the first stop light it died.  It did this every time I had to stop.  30 minutes after getting home and letting it sit in the garage, I started it and everything was back to normal. 

 I talked to a friend (certified BMW mechanic) and he said that the repeated throttle-twisting most probably pissed-off the 'puter chip and was the cause of the problem.  He said that 90% of the time someone has this problem on the 650s, that's been the issue.

Sorry for being so long winded but, it just confirms what's been posted above.  (and, he's a very trustworthy source).

 Dave

This looks like the right place to jump in with my .02 cents.....

My GT manual said that to set the motronic [computer throttle sensor stuff].....

That you turn the key on twist the throttle from full closed to wide open twice, then start as usual.

This procedure was to be used any time the bike's battery had been disconnected !!

And kinda goes along with the last thought on this problem.

I don't know but it might be worth tryin' to set the throttle position , and see if this won't cure the "Piss#d Off bike electronics. Worked for the mighty GT might work for the GS ????

Let us know if this works, probly play'n around with the throttle might have thrown the electrics of the computer off a tad!! 

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'06 ducati 620 Multistrada; '81-ish BMW R100 "Project Enduro Rat"