| Author | Message | ||
     Bobt |
I have a strange problem with my 2001 cyclone. The engine starts but runs roughly (misfires) and the tacho needle is flicking up and down as if it has a mind of it's own. I have cleaned all the connections that I could think of on the ignition circuit but with no improvement. If anyone has had this problem or has any suggestions I would glad to hear from you. Cheers BobT | ||
| Robr |
BobT, Check the wires to the coil. The tach is driven off the coil. I'm not too sure about the colors since I don't own an M2 but one side of the coil goes to the ignition module(blue wire), and to the tach(pink wire). The other side goes to the stop/run switch, the ignition switch and one of the breakers(this is usually a white wire). A bad connection somewhere in the white wire is most likely. Have also seen switches and breakers go bad. Rob | ||
| Hootowl |
Quote: Buellguy Saturday, January 11, 2003 - 01:33 pm . -------------------------------------------------------------------------------- I have a 1999 Buell M2 with a borla exhaust and a performance chip. Whenever I start the bike it only runs on one cylinder until it fully warms up. Sometimes its on the front cylinder and sometimes on the rear. Which ever cylinder isn't firing I'll take the spark plug cap off and hold it slightly above the spark plug while the engine is running. While i do this the bike begins to run on both cylinders and you can see the spark arcing from the cap to the plug. After holding the cap above the plug and giving it small amounts of gas for a few seconds I can put the plug cap back on the spark plug and It will run fine. I have replaced the plugs and wires and it has not helped. Is the ignition or the chip messed up? Please Help!!!!! Thanks Bcmike Saturday, January 11, 2003 - 03:51 pm . -------------------------------------------------------------------------------- Probably off topic here but..possible bad coil? I concur. Bad coil, or some corrosion on the terminals. Most likely corrosion, as it works sometimes and not others. | ||
| Awgrimm |
Does anyone know if there is a difference between the Screaming Eagle Race Ignition Modules (6800 RPM version) and the Buell Pro-Series Race Ignition Module? Thanks- Brad | ||
| Awgrimm |
Hello? Is this thing on? | ||
| Rick_A |
From what I've been told the Screaming Eagle has a less aggressive advance curve better suited to Sportsters. | ||
| Awgrimm |
Great. Thanks, Rick. | ||
| Blake |
That sounds backwards. A higher compression engine (Buell) would need a less aggressive (meaning less advance) curve to keep from detonating. I know that is the case for my and most other Nallinized 10.5:1 CR Buell engines. | ||
| Awgrimm |
So, Blake, are you telling me that it would be a bad idea to put one on my 98S3? I picked it up cheap. Thanks again- Brad | ||
| Blake |
Depends on if the SE module's advance curve is more or less aggressive than the Buell Race module's curve. Of course you can always adjust your static timing to offset a more aggressive curve. | ||
| Buellguy |
I have a 1999 Buell M2 with a borla exhaust and a performance ignition. Whenever I start the bike it only runs on one cylinder until it fully warms up. Sometimes its on the front cylinder and sometimes on the rear. Which ever cylinder isn't firing I'll take the spark plug cap off and hold it slightly above the spark plug while the engine is running. While i do this the bike begins to run on both cylinders and you can see the spark arcing from the cap to the plug. After holding the cap above the plug and giving it small amounts of gas for a few seconds I can put the plug cap back on the spark plug and It will run fine. I have replaced the plugs and wires and it has not helped. Is the ignition or the chip messed up? Please Help!!!!! Thanks | ||
| Blake |
Buellguy, Either all your user profile fields are blank or you have checked the hide option on each of them. I was hoping to determine from your use profile, since you were not specific in your post, exactly what type of "performance ignition" you have. If the problem started with the installation of the "performance ignition" module, that would clearly point to the module as the culprit. Have you tried substituting another module to see if the problem continues or subsides? That would be my inclination, especially if the problem first surfaced with installation of the new module. Maybe someone else here will know something more definite. | ||
| Aesquire |
Buellguy, Sounds like Coil. Single or double fire? Coil wired right for module? what blake said. | ||
| Buellguy |
Blake, Thanks for the help, Ill try that. | ||
| Buellguy |
Bobt, Similar situation on my 1999 M2 and cannot find problem either. Let me know if you find it. | ||
| Richieg150 |
I have Nallinized my 2000 Cyclone.I have the big bore set up as well as stage 3 heads.Ive been told I should get the Dyna 2000,or Screaming Eagle programmable ignition.I have Buells race ignition on now.After searching the archives,im kinda thinking that it wont help anything.My bike runns great now,but have been told the other ignition may make it run better?I dont have a problem with predetonation as of yet,but have been told the race module advances the timing to much!I do like the feature of maybe alittle higher rev. limit.Any help or info would be appreciated! | ||
| Aaron |
Richie: my opinion, the ways that an ignition module can help are by: 1) more closely matching the advance curve to the needs of the motor 2) raising the rev limiter 3) independently firing the two cylinders 4) independently timing the two cylinders So the question is, would your motor benefit from any of these things? #1, maybe. The stock Buell module is, in my experience, very well matched to a stockish motor. The race module has the same curve btw, it just doesn't kick in retard above 6200 like the stock piece, see here. But your motor is not stock. With it's increased compression, it might well benefit from a softer curve. I can't say without trying it. #2, likely. When you improve breathing like you've done, lots of times the power peak moves above the stock & race module's 6800rpm rev limit. Much depends on the exhaust. Take a look at the dyno sheet, has the power started to nose over when the limiter kicks in? I'll tell ya what, 105rwhp on the stock 6800 rev limiter is not too shabby at all. Generally those kinds of power levels require more rpm. #3, maybe. Again, considering your level of mods, you may very well have an effective enough overlap event that it shows up, like it did on this bike. #4, maybe. I'm not at all sure you have enough compression to make this show up. But you might. Sorry I don't have any concrete answers for you, but that's kind of the nature of this stuff. | ||
| Ezblast |
What does the "A" stand for in 10R12A - thats the plug number for the V-rod and the Blast - only - so far as I know. Also If the V-rod is running a resist plug - what real good is that extra juice the capacitor creates if the plug is just going to resist its imput? What is HD doing differently in this than the origional intent? As usual - Just Blasting on the Dark side! EZ | ||
| Richieg150 |
Thanks Aaron for your help.Do you guys have any Dyna 2000's or Screaming eagle ignition modules in stock.I think some of us are planning a trip to colorado,this weekend! | ||
| Rick_A |
Richie...there's no such thing as "predetonation." There's pre-ignition and then there's detonation. Detonation, which is fairly common in stock Buells when they get hot, is abnormal combustion occurring after normal combustion...pretty much a small, uncontrolled secondary explosion. | ||
| Aaron |
Richie: I think so, but I couldn't swear to it without checking. You looking for the single or dual fire version? | ||
| Hootowl |
Ezblast. The coil is an inductor, and an inductor is a device that resists a change in current. What that means is that when the ignition stops charging the primary coil, the field collapses, and the secondary coil tries to maintain the same current flow. It does this by developing whatever voltage it needs (E=I*R)to push the current through whatever impedance is on the output which is the gap in the plug. This is a huge impedance. A few more ohms in the plug aren't going to make much difference. The resistance in the plug is there to reduce the electrical noise generated by the arc across the electrode. The VRod uses the new Delphi system that monitors the combustion chamber via the impedance across the spark plug gap. The resistor plugs are most likely critical in this application. Jeff | ||
| Ezblast |
Thanks hootowl - so their application is to ensure consistancy and maximum fire-ing(sorry for spelling) - not really concerned with more power - thats why they stayed with the resist mode. I'm reading that correctly - yes? Just Blasting on the Dark side! EZ | ||
| Hootowl |
Resistor plugs are used to reduce noise in the electrical system. That's an industry-wide practice. I don't know whether the VRod HAS to use them, that was a SWAG (Scientific Wild Ass Guess), but since the ECM uses the spark plug as a sensor, the resistance in the plug must be taken into account in the map. (I would think, another SWAG.) I don't think the resistor plugs are hurting the power anyway. Think about this: Spark plug wires aren't even made out of wire. | ||
| Richieg150 |
Maybe the dual fire model.I looked at your Dyno charts between the two,and both are about identical,and I think the dual fire is quite abit cheaper than the single fire.If you have both e-mail me about their price,thanks Aaron. | ||
| Rick_A |
I've been using a 6R12 in the front cylinder and 10R12 in the rear. It seems like the hotter front plug may overcompensate for the rear cylinder's hotter operation. Looking at the plugs today the front was light tan and the rear a slightly darker hue. Anyone else running this combination? | ||
| Jdbuellx1 |
Question: I've been using NGK D8EA plugs and noticed that they are still a little hot, going to switch to D9EA plug but noticed that at the top of this page all the NGK plugs recommended are DPR_EA-9. Could someone tell me the difference in plugs and or if the D9EA would be OK to run in a '99 X1 with engine mods? (see profile) Thanks | ||
| Rick_A |
The DPREA-'s are the only ones listed as applicable for Harley/Buell application in the NGK catalog. I don't know what the differences are. | ||
| 99x1 |
Does the Screamin' Eagle laptop EFI Adapter work on Buell DDFI? John | ||
| Blake |
No. |
