| Author | Message | ||
     Thejosh |
I have a 2000 Buell X1 with about 15,000 miles. For some reason the only thing that isn't working 100% is the cold start enrichment. I have to hold the throttle open for a couple minutes to warm it up but once it does warm up it runs great, I haven't hooked it up to ECMspy yet but was more or less wondering what to expect or if there was a non ECM fix. Any help would be great, Thanks Josh | ||
| 01x1buell |
i do not know much about the cold start, but it was 44 degrees when i fired my x1 up today and i had to hold the throttle for about a min before it would idle . | ||
| Ocbueller |
That's just the way they are. If it's running fine otherwise, don't mess with it. There is no fast idle feature. SteveH | ||
| Two_seasons |
You may have the race ECM on your bike. If you do, that may be the reason. My '99 doesn't like to idle at startup either. It has the race ECM. On the other hand, my '00 starts up and idles fine, but is stock. | ||
| Jramsey |
"There is no fast idle feature" Cold start enrichment works about like a choke on a carb. "You may have the race ECM on your bike. If you do, that may be the reason." Makes no difference stock or race, both have it. Pic just now taken showing cold start enrichment 168%, shop temp 70 degrees,bike has race ecm.  As the engine temps rise the CSE gradually drops down to 100%. Bike always starts effortlessly and idles on its own. Do a TPS reset first and if that doesn't help then start checking other areas. | ||
| Kalali |
This topic seems to pop up on a regular basis... Technically JR is correct but for some reason the Race fuel map, on some bikes not all, causes this cold blood condition. The only way I was able to improve this behavior was to change the values in the cells in the idle area (six cells in the lower left corner of the map) back to stock values. Changing the values in the cold start table did not help. | ||
| Preybird1 |
Mine acts the same with the stock ecm or the race ecm. No difference between between them. Mine has been the same way for years and it doesn't bother me at all. | ||
| 99_x1 |
I did the same as Kalali, i bumped up the idle portion of the fuel maps as well as evened out the values. i also made the ignition timing maps look more like stock. it idles well with an afv of 93. still cold blooded on the first start. there is no system to allow for increased air flow when cold, so i think a little throttle is perfectly acceptable when cold. most of the summers cold starts were at 50f-60f todays will be 40f it will need throttle. i dont think letting a cold engine hammer away, with cold 20/50 oil in it is doing it any favors. its almost time to switch to 10/40 | ||
| Impala |
Customers complained about this feature on the X1's. Mine had a remote dial to increase the idle so you didnt have to hold the throttle. Pretty handy on cold mornings. | ||
| Hootowl |
I have the idle adjust cable kit on mine. I think it was part of a service bulletin. I just crank it up a turn when it's cold, and back it off when it has warmed up. Low tech, but it works. | ||
| Desertfox |
I'd prefer not to bump up the fuel the engine eats during cold startup. The way I see it, running more rich than you need too will wash the cylinders of oil. Is it really THAT big of a problem to just hold the throttle cracked open a smidge? I always disable the choke on my VW motors, same reasoning. | ||
| Raceautobody |
Don't forget the simple things. Change oil, lighter oil will be easier for the oil pump to move when it is cold, less drag on the cold motor. Check you timing, the ecm advances the timing when cold to help keep the motor running and slowly backs the timing off as it warms up. Retarded static timing will hurt cold start ups. Be sure you idle is set to 1050-1100rpm, some people like the way a buell sounds with an idle set below 1000 rpm. An 800 - 900rpm idle will hurt cold start ups. TPS reset may also help. As may some fresh plugs. Start with the simple things. | ||
| Mmmi_grad |
I have a Race ECM and all I have to do on cold starts is Blip the throttle a couple times quick then let go. It then settles to a slow THUMP THUMP THUMP for about 15 seconds like my old panhead and then gets faster. I dont see a problem here with my bike or this behavior. We dont have accelerator pumps like a card so help it out some. | ||
| Kalali |
"...i bumped up the idle portion of the fuel maps as well as evened out the values" Actually it helped me more when I reduced the fuel in the idle area in the Race map. And I didn't mess with the timing maps. All in all, it is really not a big deal. I either chalk it up as a character "flaw" or charm depending on my attitude... | ||
| 99_x1 |
the stock ecu runs 7 timing and the race 3, the race is set at 6 now, i think i made the fuel value 59 so a one or two bump. i like the charm and character. |
