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Discussion Starter #1
So I was out today in the nice weather. Filled up with gas at the start then proceeded to do about 80 miles over 2.5 hours. Mainly city driving.

Well when i was done putting around the downtown area I jumped on the freeway home. I was doing about 65-70 MPH (2 to 3 minutes on the freeway) and bike temp was back down to 175 from the 210ish from city driving.
I was not accelerating or slowing and then the bike kinda bucked a little and started to slow down. I look down and the RPMs are jumping from zero to about 7K. I clutch in the oil light flicks on, i tap the starter and the bike roared to life again.

Second stall i was back on city level streets stopped at a light waiting to turn right behind a car. I rev'd a bit to get the car ahead to move and then it just cut out. Clutch was full in already I tapped the started and off I went.

Neither time did I touch the kill switch.

How does the bike just stall with 3/4+ a tank of gas at 65+MPH???


Oh and since being parked in my garage there is a strong smell of gas near my bike, but no spots/pools/drips etc to be found.


What is wrong and what do I need to check?
 

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Discussion Starter #3
I have a set of flush mount turn signals and mirrors with signals.
Other than that nothing; not even a fender mod.
 
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Ride around for a little bit, then stop and open the fuel tank. See if there's any bit of a vacuum pull inside the tank.
 

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Discussion Starter #5
Will have to try that tomorrow morning.

I would think if it was vacuum sucking the tank the bike should not start again unless I released the vacuum?
Anything else for me to look at? The weather is supposed to get cold again after tomorrow so I may not get her out again for a few days or longer.
 
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Normally, but with an abnormal gas smell, not a bad place to check. Kinda difficult to pin point anything with nothing having been modified. Could just be a loose wire or battery connection, but that will be something you'll have to dig around to find.

If it's still under warranty, take it in to a shop.
 

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hmm.. that is strange?
when your bike stalled out, were you still getting power to the gauges and your lights or did they dim out? sounds like more of an electronic problem over a mechanical problem. that's strange why it wouldn't hesitate to start up after it stalled out like that.
 

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Could it be you might have got some bad gas or some sediment? I do not get gas from a station if I know they got a recent delivery.
 

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Could it be you might have got some bad gas or some sediment? I do not get gas from a station if I know they got a recent delivery.
that wouldn't explain why his bike is able to start up again and run fine otherwise before it stalled. I'm positive his gasoline is not the problem.
 

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I would suspect some sort of electrical issue as well, but if its working fine at the time then there is nothing there to find broken.

Just keep riding it around until it breaks properly and don't go on any long trips... then you will have something to fault find.
 

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I Always Start with the Simple Things First

that wouldn't explain why his bike is able to start up again and run fine otherwise before it stalled. I'm positive his gasoline is not the problem.
I dare to disagree....

Engine off not sucking gas, sediment or whatever falls back in line/tank, line is now clear. It does happen. He used about 2 gallons of gas during the ride before this all occurred with no issues but if something was in the tank, it is now going to be easier to be sucked in the fuel line. If it was an electrical problem, it should have happened before unless he got in to some really wicked bumps or really rough road and knocked something loose. But I could be wrong. :shakehand
 

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I dare to disagree....

Engine off not sucking gas, sediment or whatever falls back in line/tank, line is now clear. It does happen. He used about 2 gallons of gas during the ride before this all occurred with no issues but if something was in the tank, it is now going to be easier to be sucked in the fuel line. If it was an electrical problem, it should have happened before unless he got in to some really wicked bumps or really rough road and knocked something loose. But I could be wrong. :shakehand
I guess I understand what you're saying, but if this was this case it would most likely be a constant problem of bogging in the fuel system, rather random stalling's of the engine. the bike wouldn't idle right and the bike wouldn't ride right. his throttle response timing would also have a negative impact if there was deposits running through his fuel system. I'm sure he would notice if that was the case. I'm not saying it's not possible though, just unlikely.
also, since the 600rr's fuel is controlled mostly electronically, and that of having 2 injectors per cylinder, the secondary injector for each cylinder is coming on at around 5,000 rpm's, so the system is relatively complex in another words. ANY small malfunction, with fuses and maybe loose connections or harnesses can cause these types of problems. though that may not be the case, I would still assume it's electrical.:shakehand
 

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What irks me about this:
It certainly sounds like a fuel problem, but why would a bump of the starter switch get it running right away again?

I'd guess -
If an electrical connection through the starter switch was shaking loose, it could knock out your fuel cut relay, and turn off the fuel pump. Then re-pressing the button could re-establish the connection well enough for you to get going again.

1. Idle the bike and whack on the starter switch housing a little with something, see if you can get it to stall again.
2. Do the same thing with the fuel cut relay, and check its connectors for corrosion (it's under the left fairing).
 

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Discussion Starter #14
To see if I can answer a few things that came up in posts since my last.

1. There were no real bumps in the road when it stalled on the freeway.
2. I had the bike out today to warm it up, punched hard a few times with no delay in response.
3. When on a rear stand the oil check looks good.
4. There was no sucking sound from the gas cap when opened after the warm up run.
5. No strong gas smell after shutdown today.
6. Gas used yesterday was from a station I have used before, but not many times. (could be bad gas)
7. I remember that while at two different red lights yesterday there was a smell of gas also. I thought nothing of it at the time as there were other cars around.
8. On the freeway when stalled the RPM gauge was jumping around, and when the clutch went in the oil light came on (like when the key is first turned on).

I think i will have to try the tapping on the throttle housing and kill switch area while running.

From looking around the bike in the sunlight I cannot see anything out of place, leaking, stained from a leak, etc. I will def have to keep the trips short for a while until this either goes away or comes back strong.
 
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3. When on a rear stand the oil check looks good.
Oil should be checked with the bike held level and not on the kickstand or rear stand.

4. There was no sucking sound from the gas cap when opened after the warm up run.
Open the fuel tank after the bike stalls again. Just opening the tank when no problem is present serves no purpose. It's likely and very easy for one of the fuel overflow/breather lines to be pinched between the tank and motor randomly with movement from the fuel tank or fairings.

8. On the freeway when stalled the RPM gauge was jumping around, and when the clutch went in the oil light came on (like when the key is first turned on).

I think i will have to try the tapping on the throttle housing and kill switch area while running.
That last one just screams electrical issue. Check that the battery connections are tight and body grounds are not loose.
 

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You could have accidently hit your kill switch.....TWO TIMES!
Done that a few times... once when I had intended to put the high beams on, hit it and the bike shut down.. not cool.
 

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That last one just screams electrical issue. Check that the battery connections are tight and body grounds are not loose.
:+1:

Start at the relays and FI fuse. Did your clock on the gauges reset itself at the same time?
 

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Discussion Starter #19
Guages and clock are fine. Clock, Trip A and Trip B all have proper numbers.

Don't think I it the kill switch at all. I never use it to stop the bike from running. I think that on this bike I have never used the switch once, except when the bike was already off and that was just to check if it moved.

I will be trying the tapping on the kill housing this afternoon if I get off work early enough, and may pop off the seat to take a look around there also.
 

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It might be worth popping your tank up (not off), too. Only takes 10-15 min.
If you smell gas but don't find puddles on the floor, under your tank is a good place to start looking. And if gas got into an electrical plug/connection, it could explain some of this stuff.
 
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