Bike wont hold charge? - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old 04-15-2009, 09:50 AM Thread Starter
Junior Member
Join Date: Apr 2009
Posts: 1
Bike wont hold charge?

I recently moved from San Diego to Boston and when I received my bike off the freight truck it wouldn’t start, seem that the battery was dead. In the transition of moving the bike probably sat for 3 months tops without being started. Anyway, I jumped the bike, drove it the 5 minutes home and forgot about it for the day. When I went back to the bike sure enough it wouldn’t start, I jumped it again and let it run for a half hour or so but when I turned it off and tried turning it back on it wouldn’t start. I bought a brand new battery and the bike started right up. Everything seemed okay until my first real test ride, I started the bike right up and took it for a short 15 minute right, got lunch and then started the bike up again and took another 15 minute ride to get coffee. When I tried to start the bike up it wouldn’t started. I was about to call someone to bring my jumper cables but somehow got the bike to start by keeping the starter held down, and giving it some gas with the choke in. I don’t know how it worked but it did. I got the bike home and couldn’t get it started again. A week later I jumped it and took it for a 45 minute cruise, when I got home the bike started right up, the next day the bike started right up again, however a couple days later the bike was dead again. And this is where I am at today. I don’t know what exactly is going on with the bike and I was hoping some of you guys would have some insight. Its going to be 68 degrees Friday and if I cant right my bike after this horrible week I am going to lose it!

Thanks guys!!!
jconway2002 is offline  
Sponsored Links
post #2 of 9 (permalink) Old 04-20-2009, 11:28 AM
Junior Member
Join Date: Apr 2009
Posts: 27
Sounds like you have a short in the wiring harness somewhere. Do you have a DC Amp meter? If so, put the bike in its off storage condition, disconnect the positive terminal from the battery and put the amp meter between the positive battery terminal and the positive battery lead. If I'm right, there will be some small amount of current flowing. If there isn't any current flowing, then the problem maybe intermittent and you need to turn the handle bars, tilt the bike, bounce on the seat, and whatever else you can think of to try and see if you can get it to mis-behave while you are looking at it. If you have current flowing, then it is a matter of disconnecting things to figure out the circuit the leakage is in and figure out where it is. These kinds of electrical problems are time consuming things to trouble shoot.
Whetstone is offline  
post #3 of 9 (permalink) Old 11-30-2009, 07:28 PM
Senior Member
Join Date: Sep 2009
Posts: 1,880
You no doubt got it by now, But for others, as Whetstone said, electrical problems can be a real nightmare. It don't really sound like it with what you said was happening, but the stator is also worth a check, not charging at all, or very lightly. Ride safe
Sugar Bear is offline  
post #4 of 9 (permalink) Old 11-30-2009, 08:20 PM
Senior Member
Join Date: Nov 2009
Location: Puget Sound
Posts: 410
Another thing to look at is the starter. I was having trouble with mine being difficult to start. Upon looking inside the starter I found carbon from the brushes clogging the the whole mess. Cleaned it out works great.
DMTJOY is offline  
post #5 of 9 (permalink) Old 11-30-2009, 10:34 PM
Senior Member
linerdave's Avatar
Join Date: Sep 2009
Location: N. E. Ohio
Posts: 1,532
Starting problem

We may need to pin the symptoms down a little more. Most of what you wrote sounded like a dead battery. When you say you say you got it started by holding the starter down while chocking the engine sounds like a fuel problem. Are the symptoms always the same and am I correct to assume the starter does not crank the engine over? When the bike does not start do the lights look dim or maybe not on at all? Does the starter make any noise? It starts when you jump it does sound like a dead battery.

If you have a volt meter you can check some of the charging system. Since it is a new battery I assume it is good, although it could be possible you got a bad one. With the bike turned off, a charged battery should measure more than 12.5 volts. 13 volts when you first shut the bike off. When the bike is running and the engine revved up a little the battery voltage should climb to 14 maybe 14.5 volts. If you don't see the battery voltage start to rise after you start the bike the charging system is not working. You should see the head light normal brightness. If the charging system is good then as Whetstone said something on the bike is killing the battery.

It is possible the battery is low and it cranks over but voltage is to low to fire the ignition.

Let us know
linerdave is offline  
post #6 of 9 (permalink) Old 02-23-2010, 02:17 PM
Junior Member
Join Date: Sep 2008
Posts: 7
Try taking the battery out of the bike and put it on a trickle charger over night on 12v 2amp. Use a voltmeter to determined the voltage in the battery. Fully charged should be around 12.5 to 12.8 volts.

" For all your Battery needs "
Jbo24 is offline  
post #7 of 9 (permalink) Old 10-06-2010, 10:49 PM
Junior Member
Join Date: Oct 2010
Posts: 1
I have the same problem. I had the rectifier changed, since it smelled like rotten eggs and had a failure on the rectifier almost 15k miles ago. I had a Yuasa battery for almost 3 years (which is amazing that lasted this long in the Arizona weather), then suddenly died ...I replaced it with a national brand that I got from "Batteries Plus". I replaced it one time because I thought it was defective. Goes good for about a week (my only source of transportation), then it dies. The starter wants to go, but the lights are dim once I do try to get it to start. I have not yet check for ground problems. These batteries are off-the-shelf and ready to use.
....any advise?
AZrider7 is offline  
post #8 of 9 (permalink) Old 10-07-2010, 01:12 AM
Join Date: Mar 2010
Posts: 84
Your bike, car, etc won't "charge" your battery by running it very effectively. You need to put it on a trickle charger to avoid damaging the battery. Worse yet, you put a huge strain on the charging system on the bike by trying to charge it by running it, especially when it is near dead. If I don't plan on riding mine for a while, I throw the trickle charger on it with the quick connect. I think $30 for a charger that will last many years is better than burning up a $70+ battery.
ridgwayrescue is offline  
post #9 of 9 (permalink) Old 10-07-2010, 09:48 AM
Join Date: Aug 2010
Posts: 4,088
you can rule out a voltage drain "short circuit" by merely disconnecting the negative cable from your freshly charged battery. If it still doesn't hold a charge it's a junk battery. If it holds the charge just fine then it's a short or a starter or a magneto rotor/stator issue.
stratowart is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome