Question about 2003 Harley Davidson XL 1200 C Sportster Custom
My 2005 sportster will start only if i jump it but when i get it going the battery lite comes on and so does the engene lite. I have replace the battery and had the alternar replaced what is going on?
Posted by Anonymous on
Take your battery to an automotive parts store and ask them to load test the battery. Make sure you're using a good quality battery as well. You need at least 250 CCA to start your Sportster. The engine may not be big compared to an automotive engine but it is a high performance engine and harder to start.
If your battery is OK, use a DVOM (digital volt ohm meter) to check your charging system. The battery must be fully charged to make this test and get the correct results. Connect the DVOM red meter lead to the positive post of your battery. The black meter lead go to the negative lead of your battery. Put your meter in DC Volts, 20 volts or higher range. Start the engine and bring it up to a fast idle. The meter should climb rapidly to between 14.5 and 14.8 volts. If it does, your charging system is fine. If not, proceed to the next test.
To test the alternator output, find the wires coming from your engine case and the alternator in the font. It should be a round looking plug with two wires running into it. If you can't find it this way, find the voltage regulator and follow the two smaller wires until you find the plug. Unplug the plug. You're going to test the voltage on the alternator side of the plug, not the regulator side. Put your DVOM in AC volts, 30 volts or greater scale. Make sure you are in the AC volt range, DC will not work. Now, you'll see two metal pins or sockets in the plug. You are going to put your meter leads into these metal connectors. Since you're measuring AC voltage, it make no difference which meter lead goes to which pin or socket. So, start the engine and bring it to a fast idle. Insert the meter leads and your meter should read at least 30 volts. If not, your stator is bad. If it does but you reald less than 14.5 volts at the battery, your regulator is bad. I hope this helps.
Posted on Aug 09, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 04, 2014 | Chevrolet Avalanche Cars & Trucks
Sep 24, 2013 | Harley Davidson Motorcycles
Dec 18, 2012 | 1994 Ford Mustang
Sep 11, 2012 | 2005 Pontiac Grand Prix
Jan 27, 2011 | 1989 Ford Taurus
Aug 11, 2010 | 2005 Harley Davidson XL 1200 C Sportster...
Mar 26, 2010 | 2003 Harley Davidson XL 1200 C Sportster...
388 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: