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buell xb9s 2003 misfire went tick over goes to 1300
https://ukbeg.com/forum/viewtopic.php?f=8&t=18523		 Page 1 of 3
Author:  bikerpeter [ 27 Mar 2014 11:33 ]
Post subject:  buell xb9s 2003 misfire went tick over goes to 1300
Hi a problem started last year with my xb9s. when the idle go to 1300 on tick over, the bike won't pull the skin of as rice pudding as it misses but when the idle is at about a 1000 is runs perfect. if I turn the bike off & on, the bike runs ok for a while then returns back to missfire afew mins later. the bike can go 20 miles without a missfire problem from cold but equal can start after 5 miles

i've reset the TPS, no joy ! I've replaced the lamba sensor & thought I crack it as bike ran good for 100 miles but then it return to misfire :cry: I've replace the ecu & guess what it ran good for 200 miles but then goes back to missing if the tick over rises to 1300 !! there's no side stand switch problem as been modified, I've checked the front cylinder HTC lead & is fine. :ill:

anybody who had the same problem could help me out ? or anyone who know there stuff would be very helpful too !! :idea:
Author:  kevmean [ 27 Mar 2014 11:50 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
Check the intake seals are Ok ....spray some wd40 where the manifold connects to the heads whilst the bike is ticking over , if the engine revs change you know the seals are knackered. ( be careful you don't spray into the air intake whilst doing it).
Author:  pash [ 27 Mar 2014 12:34 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
Where in the UK are you?
Author:  bikerpeter [ 27 Mar 2014 12:38 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
Bradford m606 area
Author:  bikerpeter [ 27 Mar 2014 12:40 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
I'll try it over weekend but wouldn't the bike missfire most of the time if the seal was knackered ? bike run 85% okay with the intermittent missfire kicking now & again
Author:  gunter [ 27 Mar 2014 12:44 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
cps failure?
Author:  bikerpeter [ 27 Mar 2014 12:47 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
gunter wrote:
cps failure?


I'll have to look this up 1st in workshop manual & then look into it !! thanks for info
Author:  bikerpeter [ 12 Apr 2014 00:35 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
kevmean wrote:
Check the intake seals are Ok ....spray some wd40 where the manifold connects to the heads whilst the bike is ticking over , if the engine revs change you know the seals are knackered. ( be careful you don't spray into the air intake whilst doing it).


soz about getting back a few weeks later !! I tried the wd 40 on inlet manifolds but tick over stay about the same !! I've changed the TPS sensor today & see what happens over weekend !! anymore ideas ?
Author:  pash [ 12 Apr 2014 07:22 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
Wiring harness?
Author:  bikerpeter [ 13 Apr 2014 21:20 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
bikerpeter wrote:
gunter wrote:
cps failure?


I'll have to look this up 1st in workshop manual & then look into it !! thanks for info


cps ? enlighten me !! bike been really bad today ! so check on ecmspy & say code 14
Author:  bikerpeter [ 13 Apr 2014 21:22 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
bikerpeter wrote:
bikerpeter wrote:
gunter wrote:
cps failure?


I'll have to look this up 1st in workshop manual & then look into it !! thanks for info


cps ? enlighten me !! bike been really bad today ! so check on ecmspy & say code 14


crankshaft position sensor cps ?
Author:  pash [ 13 Apr 2014 21:23 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
Yeah, this thing:

viewtopic.php?p=249557#p249557
Author:  bikerpeter [ 13 Apr 2014 21:35 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
pash wrote:
Yeah, this thing:

viewtopic.php?p=249557#p249557


I'll check that out after the ET sensor is checked out thankyou
Author:  pash [ 13 Apr 2014 21:46 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
Log some data as you ride, you will see where the issue is...
Author:  bikerpeter [ 14 Apr 2014 10:30 ]
Post subject:  Re: buell xb9s 2003 misfire went tick over goes to 1300
pash wrote:
Log some data as you ride, you will see where the issue is...


hi thankyou !! log some data ? how best to do get this data ??
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