As some may already be aware this is a common fault. Can even give rise to unexpected wheelies when pulling away with the intention of a quick getaway (scary). As well as this it can lurch and splutter whilst cruising through traffic at low speed (equally scary in the wet).
Anyone suffering from this fault should remove their clutch lever switch and inspect for wear and also check lever adjustment to ensure there is not too much play.
This switch not only informs the ecu that the clutch has been pulled in to allow you to start the bike but also switches it to a different map (god knows why this is necessary) the result of a worn swith and excessive play in the lever causes the ecu to switch from one map to the other at around 3000rpm resulting in rough runnning and kangaroo type throttle response. I see on this site that this fault is common however it is easily recitified without going to the dreaded "Dealer" who probably won't know to look for it.
Hope this helps someone. I was plagued with this problem for the last 6weeks with it getting progressively worse.
Cheers all
K&N filter and airbox mod as per TLmonkey is a must thanks mate
Rough running at 3000rpm
Rough running at 3000rpm
Last edited by Si RAPTOR on |September 21st, 2007|, 7:47 am, edited 1 time in total.
God rides a harley davidson......The Devil Rides a Raptor
yup,
i had exactly the same problem, made my own clutch lever switch to get rid of this problem. flick on the switch, start engine, flick the switch back off.
i did recently install a TRE, and on cold mappings, the stuttering at 3000 is back. I have tried 100 different mappings, and none solved this problem, so i will take off the TRE again. Above 82°C the problem is not there.
i had exactly the same problem, made my own clutch lever switch to get rid of this problem. flick on the switch, start engine, flick the switch back off.
i did recently install a TRE, and on cold mappings, the stuttering at 3000 is back. I have tried 100 different mappings, and none solved this problem, so i will take off the TRE again. Above 82°C the problem is not there.
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snapdragon
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Hello guys,
This may sound like a stupid question but where is the clutch lever switch?
Is it that plastic plug like thing attached to the clutch lever by the handle bars? And how would one go about cleaning and adjusting it? Is it easily removable? I've also been experiencing rough running around 3000-4000rpm.
This may sound like a stupid question but where is the clutch lever switch?
Is it that plastic plug like thing attached to the clutch lever by the handle bars? And how would one go about cleaning and adjusting it? Is it easily removable? I've also been experiencing rough running around 3000-4000rpm.
Yes that is the offending item alright. Cleaning it and adjusting the slack in the loever only works momentarily. If your rap is ove 20kmiles then you have two options buy a new switch or remove and replace with a bar mounted push button kill switch normally used for motorx bikes.
The simplest way to see if this is the problem is once you have started your bike un plug the connector (do not bridge just leave un-connected) to the clutch switch and go for a ride if you find that the problem has smoothed out replace the switch as above.
Hope this helps as it was the most irritating and potentially lethal floor particularly when trying to pull away from lights at speed!!! Uncontrollable wheeelies
Cheers
Si
The simplest way to see if this is the problem is once you have started your bike un plug the connector (do not bridge just leave un-connected) to the clutch switch and go for a ride if you find that the problem has smoothed out replace the switch as above.
Hope this helps as it was the most irritating and potentially lethal floor particularly when trying to pull away from lights at speed!!! Uncontrollable wheeelies
Cheers
Si
God rides a harley davidson......The Devil Rides a Raptor
Rough running at 3000rpm
i think this may be my problem i have this jerky snatch at 3000rpm i have tryed different maps nothing has worked its always worse when its cold but it just about goes when the engine is past about 82 degrees
i have looked at the wires to the clutch switch guess what no clutch switch and the wires are soldered together.
what should i do just cut the wires and dont bother with switch???????????
i have looked at the wires to the clutch switch guess what no clutch switch and the wires are soldered together.
what should i do just cut the wires and dont bother with switch???????????
then your spluttering will come on and off whenever you touch the brakes...
doesn't seem that good of an idea to me, although 99% of the time you are not on the throttle while braking...so in theory it could work. But i wouldn't do it.
Just get a little manual switch, costs 1GBP in your DIY store, and hang it on your bars with a tie-rap.
doesn't seem that good of an idea to me, although 99% of the time you are not on the throttle while braking...so in theory it could work. But i wouldn't do it.
Just get a little manual switch, costs 1GBP in your DIY store, and hang it on your bars with a tie-rap.
Probably a thickie question, but gonna ask anyway 
I think mine may have started playing up like this, but am I right in thinking I can start the bike, unplug then ride and nothing else will be affected, then just plug it back in to start it again? Where can I buy another switch from? are they bike specific or just a general thing? I am assuming its a little black plastic thing with yellow and black wires
Any help as always is appreciated.
I think mine may have started playing up like this, but am I right in thinking I can start the bike, unplug then ride and nothing else will be affected, then just plug it back in to start it again? Where can I buy another switch from? are they bike specific or just a general thing? I am assuming its a little black plastic thing with yellow and black wires
Any help as always is appreciated.