| Author | Message | ||
     Buellfirebolt31 |
Here's the deal. Bought the bike (2008 1125R) a little over a year and a half ago with 2800 miles on it. Dude said it had a new battery in it (had receipts for it) and had just gotten it serviced. I changed the oil every 2500-3K miles. It always had an issue restarting when hot, like refueling up. Sometimes it'd click, like a dead battery, but if I let it sit for a little it'd restart. So I put a tender on it and would plug it in everynight. Rode it and have about 20K miles now. I went on deployment for 7 months, kept it plugged in for that time. Came back, changed the gas and oil, and rode it. It fired up fine. Rode it for about 500 miles. As I was riding down the interstate, the lights started shutting off, then it died. I could pop the clutch and refire it, but it wouldn't stay running. Loaded it up in my truck and got it home. I shot the battery, and it was about 11.4 volts. Got it started, shot the battery again at 11.4V, revved it up, shooting the battery, and the voltage wouldn't go up, telling me that the stator wasn't recharging the system. I ordered a new stator and was going to put it in, and it's an aftermarket one that is too big to fit inside the rotor. My question is: would it be better to just buy an OEM stator to replace it, or should I get a different rotor to fit this stator? I haven't heard of the 08's having the issues that the 09's have, but I don't think it's the regulator. Any help? | ||
| Tbowdre |
you should try to isolate the problem before throwing parts at it. Disconnect the stator from regulator/rectifier under the seat and measure each pole's AC output to definitively diagnose a stator problem. Sounds like you got an '09 stator (12 poles)… I would return this if possible and get the '08 stator (18 poles i think) if you need to replace it | ||
| Froggy |
Yea I would determine what the issue is before replacing parts, it could easily be the battery has failed or the regulator. 08's use a different lower output stator than the 09/10 bikes. It sounds like you bought a 2009 stator, in order to install that you will need the 2009 rotor, and because it is bigger you need the 2009 ignition cover. If you do want to get the newer rotor, you are best off getting the EBR modified version, as that will prevent stator failures with the higher output stator. It would be cheaper and easier to continue to use the 08 setup if you get the stock stator rewound, but you really need to test everything before blindly replacing parts. | ||
| Dennis_c |
Was the old stator poles black or copper? Black= bad | ||
| Nuts4mc |
since '09s have known stator problems...here is a post about '09s with pictures of a bad stator and a new stator: http://www.badweatherbikers.com/buell/messages/290 431/574635.html a) does your old stator look like the burnt up one in the pix? b) if not it may not be bad, but you need to test the output of the stator with the engine running c) to test it you'll need a multimeter and you'll need to check the AC output voltage at the big grey connector... d) disconnect the big grey connector with the yellow wires and start the bike up ... with the multimeter set to measure AC voltage put one lead from the meter on a contact in the the connector and the other lead on another contact...you should see voltage...rev th engine a little and it should rise...you need to check all three "poles" A to B, B to C and A to C...if all three give you similar voltage readings ...AND the stator is NOT burnt - the '08 stator is good. e) look for bad connections at that grey connector f) look for bad connections at the battery g) look for a loose or bad connection to the Voltage regulator...NOTE the voltage regulator uses the sub frame as a "heat Sink" - it uses thermal grease to ensure contact to the sub frame...if you remove the VR make sure you used some thermal grease to make proper thermal connection...the grease is usually "white" and is thick like putty...you can usually find it at better auto parts stores (NAPA) or at Radio Shack. h) if you think the voltage regulator is the problem...you should be getting over 12 Volts DC out of the black (-) and Red (+) wires when the bike is running at a high idle...there is no easy way to "bench test" the VR...only replacement with a known good one will reveal if the original is bad. i) if you're going to replace the VR - you might as well put a aftermarket VR on like the one from Roadster Cycle: http://roadstercycle.com/Roadstercycle%20Series%20 Regulators.htm j) check all your Ground wire connections...the big one under the seat by the swing arm pivot needs to be clean and tight. hope this helps |
