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post #1 of 26 (permalink) Old 05-26-2017, 11:46 AM Thread Starter
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bike cutting out

First of all. I have recently had the bike sprayed so tank off etc. No visable crap in there when i emptied it. Made sure fuel hose when back on correctly, stuck the overflow and breather behind the swingarm i believe .
I have done about 300 miles in 3 journeys. The 1st one near the end of the ride this happened, F1 light come on but there was no code on said check coolant, bike stalled from 5 gear to a stand still. Turned ignition off/on and was fine. Did same later. New coolant obviously and seems pressurised and running normal temp.
Second time 120 miles and no issue
I went out last night and the weather is hot, was running fine until traffic build up and cut out totally. Turned over fine but wouldnt start until the temp dropped. It was like the primer was struggling and wasnt getting fuel.
Can anyine suggest ideas?
Im going to lift the tank and look for obvious things but im stuck to be honest.
Read old posts about ecu maybe and fuel being vaporized in the hoses to cause fuel starvation.
Would love to get some pointers so i can get out this weekend
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post #2 of 26 (permalink) Old 05-26-2017, 02:19 PM
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Re: bike cutting out

First, note that 'CHEC', in place of the coolant temperature, doesn't imply a problem with the cooling system. It means the ECU has gone offline, probably due to losing power. The usual cause for this, is a problem with the side stand switch, or the spring holding the retracted side stand pressed against it. Search the forum for more details.
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post #3 of 26 (permalink) Old 05-26-2017, 02:37 PM
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Re: bike cutting out

"no code on said check coolant"

What do you mean? What temperatures are you seeing? There is no low coolant indicator, only the red LED fault indicator plus the high temperature icon come on at 120C, at which point you're supposed to immediately turn the engine off. Beyond that, the temperature indicator changes to HI at 140C (283F) and the engine is probably damaged. Or, per dpapavas, are you misinterpreting CHEC as a coolant warning?

I wonder if the stalling is just the side stand switch cutting things off.

Just to be sure, it wouldn't hurt to check the fuel pump flow rate. Are you sure that the fuel line isn't kinked?
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post #4 of 26 (permalink) Old 05-27-2017, 12:03 AM Thread Starter
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Thanks guys.
I think ive mistaken the 'chec' for being coolant related. The temperature of the bike when it cut out was only 97.
Im quite sure the fuel line isnt kinked but I'll lift the tank later and check.
I didn't get the f1 when the bike cut out when the weather was warm, only the first time when i managed to start it again by turning the ignition off and on.
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post #5 of 26 (permalink) Old 05-27-2017, 05:57 AM
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Re: bike cutting out

Definitely sounds electronic to me

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post #6 of 26 (permalink) Old 05-27-2017, 12:55 PM Thread Starter
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Ive been reading about the 'chec' code and the indicator relay being mentioned. My right indicator has been flashing faster since i have rebuilt the bike, it starts normal speed but then faster after a few secs. I thinkb it only happens if the bike is running too. Could be related then?
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post #7 of 26 (permalink) Old 05-29-2017, 01:50 PM Thread Starter
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Ive ordered a new relay, I'll update once fitted. I took the bike out yesterday and it didnt break down. The right indicator flashed correctly until the revs went up ans it flashed slightly quicker again.
Its an led relay but suppose to work on all bulbs so we'll see
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post #8 of 26 (permalink) Old 05-29-2017, 02:18 PM
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Re: bike cutting out

Have a look at the condition of the sidestand switch as well. When you kick the stand is up, it should snap to a position that fully depresses the side stand switch and it should be kept firmly in that position. If it depresses the switch only partly, perhaps because the stand pivot is clogged with dirt and/or unlubricated, or because the spring has softened and/or deformed, a bump may well pull it further down opening the switch, causing the interlock to 'think' you're riding with the stand down, cutting power to the injection system.

Also, you might want to measure your system voltage (i.e. voltage at the battery with the engine running at 3-5k rpm). That variable blink rate is not normal, and might be caused by a higher than normal system voltage at higher engine speeds, which would be indicative of a regulator failure and should be addressed ASAP. Alternatively, it might be that one of the bulbs fails intermittently, causing the other to blink faster.
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post #9 of 26 (permalink) Old 05-30-2017, 12:56 AM Thread Starter
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I will look at the side stand switch. I did lube the stand and it does move more freely which may suggest its moving over bumps.
Its only effecting the right indicator and the bulbs stay on when flashing quicker
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post #10 of 26 (permalink) Old 05-30-2017, 02:00 AM
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Re: bike cutting out

First, the relay has two functions that are separate from each other. One is to cause the turn signals to flash when actuated. The other is as part of the ignition interlock system. The same part of the relay is used for left and right signals. If yours aren't functioning identically, there's a difference in the bulbs or the wiring. Try swapping all turn signal bulbs left for right and see what happens. You may have some screwy bulbs.

Beyond that, dpapavas may be spot on about the system voltage. "Rebuilt the bike" makes me suspicious. It could, for example, be that the stator or the R/R connector is failing. It would be useful if you could get a small voltmeter and measure the system voltage while riding around. Measure it at the dealer mode connector, prob. an O/G lead on your bike.
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post #11 of 26 (permalink) Old 05-30-2017, 08:17 AM Thread Starter
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Thanks for the pointers guys. Ill swap the bulbs round tomorrow evening. My "rebuilt the bike" was just taking all the fairings off, i was bigging the job up haha, the lights etc was taken apart so may of unsettled something. I will have to look in to a voltmeter if i have too, wouldnt know where to start with that so i would need some support from the pros
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post #12 of 26 (permalink) Old 05-30-2017, 08:43 AM Thread Starter
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Just out of interest, you've gotten me paranoid. What would happen if the is an issue with the regulator failure?
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post #13 of 26 (permalink) Old 05-30-2017, 08:59 AM
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Re: bike cutting out

Quote:
Originally Posted by cheeseman View Post
Just out of interest, you've gotten me paranoid. What would happen if the is an issue with the regulator failure?
Well, if the regulator has stopped regulating, the system voltage will rise above 14-15V as engine speed rises. This can cause more current to flow through the wiring, overheating it, as well as the connectors and leading to immediate or subsequent failure. It could also damage certain devices, which are more sensitive to voltage such as light bulbs and, perhaps more importantly, the ECU.
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post #14 of 26 (permalink) Old 05-30-2017, 10:48 AM Thread Starter
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Bleeding hell, lets hope that never happens then. Like i said, its only on the right side so hopefully a dodgy nulb or wiring
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post #15 of 26 (permalink) Old 05-30-2017, 05:15 PM
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Re: bike cutting out

The three contact connector to the stator is well known for going bad, apparently from exposure to the elements. What commonly happens is that one of the contacts goes half bad such that there's an ohm or two resistance at the contact. The current through the contact causes it to heat till the nylon connector body melts, followed shortly by the electrics dying.

If you have a voltmeter out, it wouldn't hurt to measure the voltage drop across the contacts while the bike is running. It should be small, less than .1 V.

P.S. Here's the sort of thing that happens:
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post #16 of 26 (permalink) Old 05-31-2017, 01:01 AM Thread Starter
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Im buying a voltmeter as it looks like its better to check and eliminate possible things. Sounds expensive if things go wrong
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post #17 of 26 (permalink) Old 06-07-2017, 03:06 PM Thread Starter
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Replaced the relay today, cured the indicator fault. Only did 60 miles but didnt cut out. Hopefully fixed
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post #18 of 26 (permalink) Old 06-18-2017, 09:47 AM Thread Starter
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Got the chec display again today, again the ambient temperature has been really hot today. Im sure its a coincidence but the bije became unridable with it cutting out. Ive lifted the and checked plugs, fuel lines etc. Defiantly seems electrical. Side stand switch seems ok. If i buy a voltmeter i wont be sure how to use it if honest. Going to tryand source a reliable electrics man to tale a look. Proper pissing me off now
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post #19 of 26 (permalink) Old 06-18-2017, 11:40 AM
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Re: bike cutting out

Unfortunately curing the indicator fault by replacing the relay didn't make that much sense. You have a intermittent somewhere. It's probably the wiring but could include the ECM, and it's going to take some hunting to find it. You need to get someone else involved if you can't make the measurements.
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post #20 of 26 (permalink) Old 06-18-2017, 01:13 PM Thread Starter
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Its proper doing my head in. Seems wierd as i did 70 milrs on friday with no issues. The high temperature seems linked somehow
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