2004 sportster LE engine problem

[bkpamir]

My baby has a 951 engine and it turns on fine. In low speed it works pretty smooth, Every once in while it gives me low battery beep, but the battery is 100% charged. If I push the gas, it takes off and then it slows down quickly in less that 5 seconds and then the engine works rogh until I turn the gas down. It barely reaches 15 mph!
This all happened out of no where. I have gas and oil and the battery is charged.
This baby used to run up to 65 mph! Its really slow now! i despreadly need help.
I look forward to your replys guys.

Thanks a lot.

 

[bkpamir]

Any Ideas on this guys?

 

[frpole]

Low Battery Beep?

How would you describe the low battery beep. Is it a 2 second beep every 58 seconds? (Time it). Also, how are you verifying that your battery is 100%charged? The reason I'm asking is because I've experienced similar problems and found I had sucked up sand and it had filled up my cooling system, and giving me an overheat alarm, then after the cooling system was cleaned out, I experienced a 2 second beep every 58 seconds, the boat would only go to 5000RPM and up to 20 mph on calm water. It turned out to be ....ready for this.... the battery! ..Good Luck.

 

[fBear]

had the same problem

I have a 2004 Sportster LE DI, had the same problem.
The dealer put it on the computer and found the charging circuit/voltage regulator was bad. Replaced that and no problems all summer.
Fortunately for me it was under warranty. It was a very expensive fix.

 

[seadoosnipe]

Testing........

You need to check your charging system. Just because you have a 100% charged battery, means very little except you can start the motor. As soon as you start it one time, you now have about 75% charge capacity left. Without the magneto's charging circuit, delivering 14 VDC to your battery and electrical system, your engine will start to fail electrically anywhere between a half hour to a few minutes.

If you don't have one, go to Wal Mart and buy a multi meter. You can get the small digital for under 20 bucks. Set the multi meter setting for 20 volts DC.
Put the positive probe on the positive of the battery and the negative probe to the negative side of the battery. Without the engine running, you should see about 12 volts DC, or just a little over. Now, start the ski, turn on the water. With the ski running, you should see about 14 volts DC going to the battery. With the engine off, you should have about 12 volts DC.

If you don't see 14 volts while running, your rectifier/regulator is likely shot and will have to be replaced.

This is assuming that you've checked the fuses in the electrical box before you do any of this testing, they are the ones marked "Batt". Some models have one, others have two. But make sure you check your fuses first.:cheers: