Miss fire that clears at higher revs

[grog]

no code is very strange. i wouldve thought cam sensor would throw a fault. my thought is to hook up ohm meter, check tps thru its range. 

[Veemanzero]

I've had this with another bike years ago. If its missing on tick over and clears at higher revs it generally a plug. And people miss it cause they always assume the worst and start looking at the coils. When the bike is cold. Start it up and immediately with care feel each header pipe and see if one is cooler than the others, you'll need to be fairly quick as you'll burn your fingers if not carefull. If one is cooler swap the plugs over.  Repeat the exercise and see if the pipe that was cooler has warmed up and the other is cooler. If you get no joy swap the coil leads around but be mindful of the firing order, this will eliminate the plugs and coils

[shanered6]

well i would realy like to know the out come of this as i went on mine tonight it was running perfect stopped filled her up and then a few miles later started missing in low and mid range !... the same as what Grip seems to have reported on his .
I dont think it electrical i think its defo fuel problem and im going to start with the teabag filter as i think froudy is right and its water .
We shall see ......

[Hooli]

Has anyone said clutch & sidestand switch yet?
They trigger a different map for easier starting & on my K2 make it backfire like hell under load if shorted out. If they are just manky it's rough as hell at lower revs.

[shanered6]

I will have a look at them as well i did have problems with my tiger and it turnd out to be a sticky side stand switch .

[froudy]

I agree..The clutch switch can cause very lumpy running if it's playing up.

[shanered6]

Ill check the sidestand and clutch switches first i think as ive just changed the bars so maybe ive disturbed the something .... i will have a look and let you know !

[gsxbarmy]

I agree with the above! Also if you have aftermarket levers, just check you haven't knocked the setting back one notch as with some aftermarket levers they can cause the clutch switch not to release properly.

Having said all that - if the above makes no difference, swap the plugs out for another set, it could just as easily be a plug breaking down at lower revs. Also throw some injector cleaner through the system, as it could be a slight blocked injector at lower revs also.

[shanered6]

I agree with the above! Also if you have aftermarket levers, just check you haven't knocked the setting back one notch as with some aftermarket levers they can cause the clutch switch not to release properly.

Having said all that - if the above makes no difference, swap the plugs out for another set, it could just as easily be a plug breaking down at lower revs. Also throw some injector cleaner through the system, as it could be a slight blocked injector at lower revs also.
[/quote

I did move the adjusters a couple notches on my after market levers  ..... youve all given me much to think about 

[shanered6]

well seems to be ok know 

[seth]

Good news buddy
Hopefully that's it sorted now.

[shanered6]

Bloody peeing it down today so in to the shed later and its tank off and teabag filter and pump clean plus the pairs mod and a general check and clean as well as a damn good look round .

[Mick_J]

Mine does something very similar, if you sort it let me know.  Bike ran very badly yesterday so it's getting worse, it would be better if it just stopped altogether but intermittent faults are always a bugger to fix.

[grog]

Mjgt, does it actially mis fire or just run poorly? If mis firing a laser thermometer on down pipes will tell you which cylinder. Just running badly, kettle of fish. Rich or lean, need to find out.

[shanered6]

Ok update !
I stripped the pump and the teabag filter was very dirty and gundgie so stripped the hole thing down and cleand and blew everything out , put it all back together and fire her up and it was a lot better but still not right still running lumpy and hesitating .
So now the controversal bit !!!
I had a S-TRE that i had fitted to my TL1000s (but it fits the 14 and others ) its the one that is supposed to improve throttle response in the first 50% of the throttle in 1 - 4 gears and remove the limiter in 5th and 6th but never realy made much difference on the TL !
So i thought what the hell i'll give it a go and fitted it to the 14 .... well its work brilliantly the bike is very smooth now and runs realy nice , there is still a slight hesitation right in the bottom but i think i can cure this by turning the tick over up slightly as it is 100 - 150 rpm on the low side ... we shall see !