| Author | Message | ||
     Sakuc |
As i run my bike during the winter times (despite being stored in normal room temp storage), i noticed i get backfiring into airbox when i do rev-up-rev-down-rev-up cycle. And no, i donī't whack the throttle before the bike has warmed up good  Also it spits black smoke on low RPMs, running very rich in my opinion, but i guess this is pretty normal on XB's, is there ECU/ECM i can sort out this behaviour? (Rapid-Bike ECU, DirectLink?) The bike is bone stock on all parts. Its CityX, 2005, 13,000km on clock. As warranty engine mount and spark plug cables has been switched out (plugs too ofc). | ||
| Mkenn |
My 2005 City-X does the same thing. Puffs a little black smoke at idle and pops in the airbox, usually as you are leaving from a stoplight, etc. Sometimes it almost feels like it is about to stall. I just bought it last week and have been riding it around in the cold too. It has been about 40F out the few times I rode it. I am going to wait till the weather warms up a little and try it again before I bring it in to be checked. Otherwise the bike runs great. I bought my bike used and it has around 800mi on it. It is also bone stock. | ||
| Torch |
mine too.it seems to get less frequent the more miles you put on it.i was told race ecm or remap w/pipe and filter helps. | ||
| Mark_keller |
Mine does too, backfires into air box, sometimes cuts, off-idle as you try to pull away from the lights, hesitates totally as you roll on the throttle at say 2.5k, if you throttle back it pulls harder, also runs rough and idles poorly when cold. These symptoms feel like it is not fuelling properly, like it has a sticky injector, they are intermittent and can go away after some aggressive riding i.e full throttle through the gears to redline. The bike then runs great until you sit around in traffic when the symptoms return. Dealer said it may be fouling and suggested adding HD winter fuel additive (its cold here) which I did and it seemed to help a little but not a lot. I love the bike but this behaviour is getting a little irritating. Surely a City-X should work in the City? Would the race kit fix all this? Dealer said should help. Or is there genuinely something wrong? Sorry for the lengthly post (it's my first post and Buell) but I just want to get it to run right. | ||
| Sub65chris |
I had the same problem when its 40degreesF or lower .it got so bad I thought that the airbox was going to pop off! All I did was clean the sparkplugs and rinse the air filter and it went away . ( so far ) | ||
| Sgthigg |
Had this same thing when my bike was new and it was cooler out. It hasnt done it in 2-3k miles. I have 5k on it now. | ||
| Cmm213 |
Sounds like everyone has problems in the cold, including me. I usually have problems with the idle not wanting to stay put. | ||
| Shortie |
It's been 40f or less here for a while but nice and dry and I haven't noticed anything like those problems with mine on a 30minute ride into town. Just over 250 miles covered on top of the 2000 miles it had on the SX when I picked it up a month back. However I have noticed the fuelling seems to change depending on how it's ridden which would affect how warm it got. Sometimes it just feels rougher than others. I read somewhere that a change to different oil grade is a good idea in cold conditions perhaps that would help? I know on my aircooled bandit the engine temp and warm up procedure made a big difference to how it felt. I think a temp gauge is a bit of an ommission on a bike like this used in varying weather conditions. How hot my right knee feels isn't a particularly accurate gauge. |
