rough running '07
I hope you guys can forgive me. I've been lurking here for several years but rarely post anything as I figure I don't have much in the way of knowledge to add.
I am, however hoping someone will be able to help me with getting my rough running LT straightened out.
It is an 2007 w/ 32000 miles on it. This started out as a stuttering/ stalling problem at low speed on hot days and a rougher than usual idle, so I decided it was time to give her a little attention. I replaced the plugs, fuel filter, air filter, checked valve lash, only one (far right intake on #4 was .005) was out of spec and that was able to be brought into spec by swapping the bucked from another valve that had a valve lash of .007 and this made them both .006. So should be good if but a little towards the tight side of acceptable. I also changed oil in motor, trans and final drive.
Put everything back together and she starts right up but still has the rough idle. The wife and I decide to take it in to town for dinner ( 28 mile round trip) and when we stop for gas I
notice the cap is hard to get off and when it finally does come off air rushes into the tank like no tomorrow. I left the cap loose for the rest of the trip but it still isn't running right.
When I got home I did the canisterectomy, short version, and this made no change except for the tank venting issue is now resolved.
After this, I took it out for another ride, this time without the wife, so I get on it pretty hard and notice a definite lack of power, no nice hit above 4000 rpm, and the top gear roll-on power seems way down and the bike has a real miss or stuttering problem when trying to just roll the throttle on from say 60 to 80 mph.
Back home we go and on another day I pull everything back apart and re-check my cam position-both lines on the end of the cams are perpendicular to the head when the #1 cylinder is @ TDC, so thats OK. No vacuum lines are off, intake boots seem to be all the way on and nothing looks like it is anyplace it could get pinched when reassembled.
Today, I pulled the hall-sensor cover off because there was oil around it and I thought maybe it had gotten oily and that was causing a malfunction, but it was dry under the cover.
Unless some of you have some suggestions for me to try, I'm about to take her to the dealer. My only real reluctance to do that is they are clear down in Detroit and it will be a real PIA to drop it off , and find a ride to and from there back home.
So, any one want to chime in on what I'm missing? Thanks, Matt