| Author | Message | ||||
     Madrab |
Hey guys looking for a bit of help! Went to start up my buell, 2001 x1, & it started for about 10 seconds, backfired and cut out. Since then i havent been able to get it started again. I have gotten a couple of back fires but nothing more. I have checked the following: Power - engine is turning over - battery has been fully charged & wasted again trying to start it - current back on charge Sparks - the plugs are definitely sparking Fuel - plugs do appear wet, & i can smell the petrol when it is turing over Compression - definitely there as well as suction at the intake The bike had been giving a bit of trouble before hand - wasn't running smooth & spluttering a bit. started as a small sputter catching at approx 3000rpm - but got worse & now nothing! :-( any help would be appreciated! I also recently got an ecmspy cable - but not 100% on how to use it yet - though i have reset the tps and afv but that didn't make any difference | ||||
| Britchri10 |
Check that the electrical grounds are clean & tight.Check ignition switch. Check the BAS, side stand cut off safety switch & clutch cut off safety switch. After that prepare to do the Oak Tree dance! Good luck! Chris C | ||||
| Britchri10 |
I just looked at your location. Go & drink a Guinness on O'Connell Street for me! Chris C (Ex London Irish) | ||||
| Akbuell |
If you haven't already done so, try jumping/disableing the sidestand switch. Then hook up ECMSpy, and check your TPS. Mine acts like that when it needs a TPS re-set. But it will run. Yours may be farther along. All this assumes no CEL lights; the TPS is identical to the one in a US fuel injected 5.0 Mustang. Pls let us know how it goes, Dave | ||||
| Akbuell |
Boy, Britchri10 types fast. Had 2 posts by the time I finished mine! +1 on the Guinness. | ||||
| Madrab |
Check that the electrical grounds are clean & tight. - under the seat - braided steel cable? Check ignition switch - any particular part? connection/fuse? Check the BAS, side stand cut off safety switch & clutch cut off safety switch. - not entirely sure where these are After that prepare to do the Oak Tree dance! - similar to the safety dance? :-) I just looked at your location. Go & drink a Guinness on O'Connell Street for me! - will do! If you haven't already done so, try jumping/disableing the sidestand switch. - will try this tomorrow Then hook up ECMSpy, and check your TPS. Mine acts like that when it needs a TPS re-set. But it will run. Yours may be farther along. - TPS was reset but i will reset it again to check All this assumes no CEL lights; the TPS is identical to the one in a US fuel injected 5.0 Mustang. - CEL lights? Pls let us know how it goes, Dave - will do | ||||
| Akbuell |
Sidestand switch/sidestand cut off switch are one and the same, located just above the sidestand pivot. Unplug the connector, jumper the two wires together, done. This is the safety switch that fails most often. Can cause the symptoms you describe. CEL= Check engine light. See your owners manual. And if you don't have one, a factory service manual is essential. Lots of great info. | ||||
| Akbuell |
First, my sincere apologies. My CEL comment was at least a bit snippy, and that was not my intent. Check Engine light is the red light on the tach that comes on for a few seconds after the stop/run switch is turned on. Should go out shortly after the fuel pump finishes priming. If it stays on, the ECM has detected a fault. ECMSpy can tell you if you have a fault code. Hope this helps, Dave. | ||||
| Road_thing |
Another possibility: check your ignition rotor (#9 in the picture below). They've been known to break off the hub.  rt | ||||
| Harleyelf |
While you're in there, smell the cam position sensor (#8) and see if it has any burnt appearance to it. They fail and cause the symptoms you're experiencing. | ||||
| Madrab |
Ok, battery fully charged I've checked the ignition switch but it seems fine, same with the side stand switch - haven't jumpered them but the bike does seem to respond correctly when the side stand is up or down I've plugged the bike into ecmspy and done a TPS reset and avf & done a diagnostic - the main diagnosics don't give me any errors (that i know of - i haven't seen anything to say their may be a malfunction) & the only trouble code is that the o2 sensor is lean The Bike does turn over when i press the starter button - though it never seems to "catch" - i get the occasional 1/2 bangs but then nothing - i have pulled out the sparks and they are sparking when i hit the start button & there is definitely fuel getting to the engine - smell and wet plugs There are no CEL lights & the standard start up seems normal | ||||
| Madrab |
Ive also attached the ECM downloads if anyone can make head nor tales of them! :-) BUEJA120 05-27-99 Reihe: 1 08 00 00 00 05 44 DC 05 79 63 5B 01 89 01 F4 01 F4 01 62 00 6B 01 52 03 37 64 73 55 0C 00 14 14 00 2D F0 4F FF 00 14 64 32 64 64 64 0A 0A 19 01 0C 50 1B 28 32 14 88 0A 1B 00 1C 13 28 13 3C 13 69 03 1B A0 28 28 14 A5 64 A5 4C 04 28 69 66 69 C8 64 FF 62 46 05 1B 00 3E 64 C8 FF 78 64 6E 73 14 05 1E 1E 1A 04 6C 02 D4 03 A4 06 FC 03 34 08 1A 04 C4 09 38 04 2C 01 08 07 6C 02 46 05 1A 04 24 04 A4 06 FC 03 34 08 DE 03 C4 09 C0 03 86 0B 4C 04 52 03 12 00 86 0B 2A 00 C4 09 51 00 34 08 9F 00 A4 06 BB 01 20 03 E3 01 F4 01 E8 01 90 01 00 00 7E 04 D6 01 29 04 8A 02 E8 03 84 03 BB 03 B0 04 8E 03 78 05 70 03 72 06 61 03 31 00 72 06 56 00 78 05 8C 00 B0 04 35 01 20 03 8A 01 58 02 C5 01 90 01 E3 01 C8 00 00 00 40 06 58 02 E2 04 E8 03 84 03 B0 04 58 02 78 05 FA 00 40 06 00 00 Reihe: 2 0C 30 18 33 3C 5D 46 60 0C 1B 18 1B 1B 1B 22 1C 28 1E 2F 1F 35 21 3C 23 46 2A 03 03 19 00 32 00 D0 07 F4 01 15 00 DC 05 26 02 1D 04 B6 03 C4 09 7E 04 23 2F 28 2F 3C 42 46 45 23 24 28 24 2D 24 32 25 37 27 3C 2A 46 2D 28 1E 0A 03 0A 03 32 07 64 CD 91 CD FF CD 0F CD 1B CD 2D CD F4 01 27 00 28 64 3E 3C 96 00 64 00 A0 04 C8 0C FA 18 58 00 DC 05 40 06 8C 0A F0 0A 00 3C 3C 00 00 00 00 00 00 1A 2A 00 00 0D 15 00 EE BB 55 AA A4 1F 72 1F 58 1B F4 1A 40 1F DC 1E C8 19 90 1A 2C 1A FF 0A 69 69 69 69 69 69 69 69 32 64 F2 03 64 00 2C 01 C4 09 0F 1E FF 64 FE 02 D2 FA 05 BE 64 64 00 02 00 01 67 01 0A 02 64 12 02 64 12 01 64 64 D2 88 0C 64 03 01 01 05 01 7F FF FF DE 4A 4A FF FF 8C 63 4B 3C 33 2C 26 21 1E 14 14 14 14 0A 14 1E 2D 3C 50 64 7D AF FF 20 1C BC 1B 2C 1A 70 17 7C 15 Reihe: 3 AC 0D D0 07 DC 05 B0 04 58 02 0A 14 1E 28 32 3C 46 50 64 7D AF FF 4C 1D 58 1B 70 17 88 13 A0 0F B8 0B C4 09 D0 07 DC 05 B0 04 E8 03 20 03 00 00 Reihe: 4 B4 B4 B4 B4 B4 B4 78 28 0C 0C B4 B4 B4 B4 B4 82 60 14 0C 0C B4 B4 B4 A4 A0 74 50 50 3C 28 A4 A4 A4 9C 94 64 48 40 20 28 90 90 90 8C 84 60 34 2C 18 14 88 88 88 84 7C 50 28 20 14 0C 70 70 70 78 74 48 2C 20 14 00 70 70 70 70 64 48 3C 1C 14 00 7C 7C 7C 7C 68 5C 50 28 20 0C 7C 7C 7C 7C 68 5C 50 28 20 0C B4 B4 B4 B4 B4 B4 78 28 0C 0C B4 B4 B4 B4 B4 82 60 14 0C 0C B4 B4 B4 A4 A0 74 50 50 3C 28 A4 A4 A4 9C 94 64 48 40 20 28 90 90 90 8C 84 60 34 2C 18 14 88 88 88 84 7C 50 28 20 14 0C 70 70 70 78 74 48 2C 20 14 00 70 70 70 70 64 48 3C 1C 14 00 7C 7C 7C 7C 68 5C 50 28 20 0C 7C 7C 7C 7C 68 5C 50 28 20 0C 1E 1E 1E 1E 1E 20 26 28 2E 39 37 39 3A 1E 1E 1E 1E 23 28 2D 2D 41 45 40 44 45 1E 1E 1E 26 2C 3A 42 4D 61 69 69 69 69 24 24 26 30 3F 4F 60 6B 78 78 82 82 82 3C 3C 3C 41 Reihe: 5 5A 6B 70 78 8B 82 82 82 82 4B 4B 55 5A 68 78 79 8C 96 91 82 8C 8C 55 55 5A 69 78 8C 87 8D 9B 9D 87 8C 8C 64 64 69 7D 87 94 8C 96 A0 A1 8C 8C 8C 87 87 87 87 A7 9C B4 BB A5 AA 96 8C 8C A5 A5 AA AF B4 B9 C8 D5 B9 AB 96 8C 8C CD CD CD CF D2 D7 D2 D2 B9 AB A5 91 91 E1 E6 EB ED E1 D7 D7 D2 B9 AB A5 91 91 1E 1E 1E 1E 1E 23 23 24 25 35 34 36 37 1E 1E 1E 1E 1E 23 28 2D 34 3F 3E 46 47 1E 1E 1E 26 2F 31 34 3C 4A 64 69 69 69 28 28 2A 2D 35 44 47 52 67 91 8C 91 91 2D 2D 2D 3C 44 5B 5F 6C 84 99 B4 B4 B4 3C 3C 41 4B 5A 6C 70 81 91 B4 B4 B4 B4 46 46 4B 5E 6C 81 7D 8C A5 B4 B4 B4 B4 5F 5F 62 7D 87 8D 96 A0 A5 B4 B4 B4 B4 87 87 87 A5 B9 CD D2 B3 B9 BE B4 B4 B4 AF AF B9 D2 DC D7 DC D2 C8 C8 B4 B4 B4 D4 D4 D4 DC EB DC D2 D2 C8 D7 B4 B4 B4 EB EB F9 FE FA DC D2 D2 C8 DF B4 B4 B4
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| Oldog |
Compression Fuel/air spark all at the right time A static time check is in order also did you use spy to check the coils/plugs if so you may have a timing sensor issue.. see RT's post above.... | ||||
| Akbuell |
Were it me: Jumper the sidestand switch. It has a spotty service history, and will remove one possible usual suspect. New plugs. Yours may be fouled by now, and there are more 'diagnostic' situations to follow. With ECMSpy connected, SLOWLY roll the throttle to full open and full closed. With no jumps in voltage or opening angles, another suspect is eliminated (or minimized). The 02 sensor lean is at odds w/the plugs; I might choose to discount that for the time being.You may have an intake or exhaust gasket leak that led to this reading, which should not lead to a starting issue. While you have no trouble codes or other indications of problems (such as the sidestand switch), you are not vibrating the 'system' at 3K either. Good on the no CEL's. Just because it is easy, disable the Bank Angle Sensor w/ECMSpy. You can always turn it back on. To review, change plugs and jumper the sidestand switch. See what happens. Pls let us know how it goes, Dave | ||||
| Harleyelf |
Static timing check, Flintstones method: Pull plugs, attach to plug wires, allow to hang with plug contacting cylinder cooling fin. With plugs out and hanging, place bike in gear (I use high) and turn key on. Roll bike until both cylinders have spat compression out the spark plug holes. Did each plug fire once, as its piston was on the compression stroke? Good. Did extra sparks occur? Bad; replace cam position sensor and/or ECM unit. | ||||
| Madrab |
Thanks for the advice guys, I'll try the cam position today | ||||
| Madrab |
Ok new plugs in , followed the TPS reset properly & was able to get it started though it was still running sluggish. Checked the AFV & it was at 150% no idea why - reset it to 100% & now it seems to be running good - haven't taken it out in the road yet as the weather is crap! though i have noticed that when i increase the throttle, it seems to stay in open loop - when should it change to closed loop? | ||||
| Joshbiz |
what happened Madrab? I have a bike with the same issues? I hope you still have this email and Buell for that matter! Thank you! Josh |
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