| Author | Message | ||
     Jaredkuper |
Condition: When starting up cold (<70 deg outside air, first start of the day) the engine is guaranteed to die once or twice before it will finally stay on. I can forgive the intermittent misses while running since it's not properly warmed up yet, but I am confused about having to start the engine multiple times. I have 1,500 miles on it, and it started fine up until about 1,300 miles. I adjusted the idle speed up a hair (from 950rpm - 1050rpm) this morning after a warm up ride, so I'll have to wait till tomorrow to see if it made a difference. Is this normal? Is this unavoidable for a small engine? My jet skis don't do this! | ||
| M1combat |
It's not normal as such... I think your idle speed correction should help at the least. The other issue could be the TPS. | ||
| Spike |
My 12R does that when the race ECM is installed. I've tried numerous TPS/AFV resets and had the static timing adjusted all to no avail. It's annoying when your injected bike acts like a carbureted bike.  Mike L. '04 XB12R | ||
| Jasonxb12s |
Same thing here,,,just started last week after I got the drummer/ecm/filter installed...They did a Tps reset so I'm not so sure it is that. I took it out for a 10 mile jaunt at 3200 rpms today to try and reset the air/fuel valve, as described by another member. It does seem to ride better after doing this (Idle, sound, smoother accelerating) but I will have to see when the things cools down completely again. | ||
| Curtyd |
Leave the throttle alone. Resist all temptation to GIVE IT GAS, when you start it. FI is different from carbs, even if you have to run the starter for a few seconds longer than you expect, it will start and Idle fine. I rode all winter here in ORL and YES it did get down into the low 40's on many mornings. NO problems. | ||
| Jaredkuper |
Yeah, I know not to give it any gas, and never give any gas on the first start. If I have to start it a second (or third) time then I give it just enough gas to stay about 1.2k for about 2 seconds, then ease it off to idle again. I hate to give gas on start up to FI, but if it would start the first time I wouldn't have to worry about it.  I plan to not give it gas anymore, and instead hold the starter longer as you suggested. I have noticed before that it helps sometimes. | ||
| Jasonxb12s |
Mine is slightly different Jared. I start right up but after about 5-10 seconds of idling, It dies. I then have to try a second or third attempt. Then she's a bit twitchy until 3rd gear. She's still my "naughty little pet." (spoken like Chris Farley) | ||
| Buellny |
"Mine is slightly different Jared. I start right up but after about 5-10 seconds of idling, It dies. I then have to try a second or third attempt." Yeah, my XB9S does that once and a while. It will run for about 5 seconds then die. The 2nd attempt always works though. It doesn't die everytime though....just enough to make me say "hey, isn't this a fuel INJECTED bike?". | ||
| Jaredkuper |
Yeah, that's what mine does too, if I don't keep the rpm's up at the beginning. Interesting to see that other people are having the same problem. Kind of boosts my confidence that there's nothing perilously wrong, while simultaneously lowering my respect for the engineers. Oh well, a little bit lower than a great amount of respect is still a great amount of respect. | ||
| Mookie |
ya know. I had this discussion yesterday but mine is different. If i dont let my bike fully warm up, it will die. for instance, I pull out of my driveway and ride up to the stop sign, i am guarenteed to die if im not giving it gas. | ||
| Wyckedflesh |
Are you making sure to wait until the engine light goes out before you start the bike when you switch on the run switch? | ||
| Jasonxb12s |
I always wait for the light to go off. I guess I'll just deal with it, I'm not willing to take out the Race ECM right now to see if that does it, since I just paid to have it put in and the TPS hibidy-doo kha-kha.... | ||
| 2k4xb12 |
Mine starts up and idles fine (albeit with that certain cold engine lope). Never dies. As mentioned before, I do dislike the low speed missing though during warmup... Steve. | ||
| Slowby |
if you paid to have the tp reset than i hope you paid for it to be right. take it back and make sure they reset the afv (air fuel value ) to 100. (see where it is before you reset) after the 3200 rpm test ride with throttle maintained steady the 02 sensor should read the new air. and then set the afv to your area and weather. the afv does flux to the weather but should stay close to regular #'s for the area no matter what bike. | ||
| Opto |
Was told by dealer that the race ecm is prone to stalling the bike on a cold start, and he was right! Went back to stock ecm, for other reasons as well. | ||
| Buckinfubba |
Not sure but....the 12's seem to be more cold natured than the 9's. Not sure if its a quirk or a problem. Well yes its a problem because its annoying but , well you know what I mean. but like what was said, don't give it a bunch of gas it could foul the plugs. The way it works at cold start and at idle in general is this, it is in the closed loop at idle, when it is first started the exhaust gas need to heat the 02 sensor enuff to kick it on. This usually takes a 1 min or 1 1/2min. Then once it starts going thru the votage cycle the ecm is more in control of it. Like I said the 12's seem to be more sensitive to this. Hey Jason....have ya scared the neighbors yet, especially that lil brat with the now broken soaker gun!!! | ||
| Jaredkuper |
Only time my bike died at the first stop sign is when I forgot to turn the gas valve to on with my Blast! | ||
| Darthane |
Mine's always started right up (less than 5 seconds cranking) and never died, even down to sub-freezing temps. -=shrugs=- | ||
| Jasonxb12s |
Hey Brian, The little brats stay in their yard now. I do keep the shield down on my helmet now when exiting the neighborhood. Haven't seen them with a new water cannon as of yet. Hopefully I'll get my hands on another one (water gun)  before summer's end. Regards, Jason ps hope all is well with your relocation.. | ||
| Xb9er |
My XB9 doesn't do that, even starting in 35°F temps (stock motor/exhaust, XB12 box, no snorkel, breathers rerouted to outside, NGK Ir plugs). It's garaged and hooked up to the Battery Tender Junior when not being ridden or worked on. Idle is set to approx. 1100 rpm. When I start out cold, I flip the kill switch, turn the key, let the fuel pump do its thing, light goes out, then I push the start button. It always sounds terrible for a little bit, like it might stall, but if I leave it alone, it's fine. In fact, I remember a couple times if I did twist the throttle a bit, that caused it to stall. If you had this problem and gave it gas and such to get it going, you should now check the plugs to see if they are fouled. Also check the plug gap and adjust if needed. Replace plugs if necessary. Those using race kits or drummers may want to try high performance spark plugs. I don't know why these aren't part of the race kit???? Make sure your fuel is at least 91 octane. Use a good Synthetic Oil (Not Harley oils  ) suitable for your typical weather conditions. If it is a race ECM issue, the above may not apply. Mike edited by xb9er on April 30, 2004 | ||
| Shawn6399 |
I have a 2001 buell X1. I just put on a Supertrapp pipe and a K+N air filter. Any advice on leaving the bike the way it is? What about a race ECM? The dealer says I need one, but it runs fine?!?!? How many discs should I keep in my pipe? I'm not sure where I should go next, I don't want to damage my bike by leaving it the way it is. Thanks |
