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Old 10-17-2015, 10:25 PM   #1
whomikedao
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Honda Rebel 250 not starting

It died on me while I was riding. Tried starting it up and it just buzzes. I'm assuming this is the battery (hopefully) but it's weird because I fully charged it a couple of days ago, it must have been all the short rides I've been doing trying to fix the original problem.

This is what happened.



So I decided to charge the battery while it was on the bike over night. Came back in the morning to see it was fully charged then this happened:


Should I not have charged the battery while it was on the bike connected? I'm not sure what this sound is from, maybe starter relay? Not sure where to begin to fix this problem. When I try to start it again it goes back to buzzing so I just took the battery out for charging in the mean time.
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Old 10-17-2015, 10:40 PM   #2
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Your battery is bad. Time for a new one.
Motorcycle batteries don't usually live more that 3 years or so.

The thing is, inside there are plates separated by a small space filled with electrolyte (usually an acidic liquid).
Vibration can cause the plates to Crack and eventually break. When one or more breaks it will touch the plate next to it, reducing capacity.
You can charge it all you want, it can even read more or less, full voltage on a voltmeter. When you put a load on it, it won't do anything. It has no capacity.
That explains why, you can ride and everything seems fine. Go eat dinner and when you come out the battery is dead.
There is no way to fix it. Time for a new battery.
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Old 10-18-2015, 12:36 AM   #3
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Quote:
Originally Posted by bumblebee View Post
Your battery is bad. Time for a new one.
Motorcycle batteries don't usually live more that 3 years or so.

The thing is, inside there are plates separated by a small space filled with electrolyte (usually an acidic liquid).
Vibration can cause the plates to Crack and eventually break. When one or more breaks it will touch the plate next to it, reducing capacity.
You can charge it all you want, it can even read more or less, full voltage on a voltmeter. When you put a load on it, it won't do anything. It has no capacity.
That explains why, you can ride and everything seems fine. Go eat dinner and when you come out the battery is dead.
There is no way to fix it. Time for a new battery.
Ahh okay, I bought the battery about 3 months ago from cyclegear but it isn't a Yuasa, just a megaboost if that matters. I thought it might've been something else because I never heard that new sound in the 2nd video
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Old 10-18-2015, 08:44 AM   #4
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Well you'd hope a battery would last more than three months. Cycle hear should warranty that.
It's possible it's something else, it's hard to troubleshoot over the Internet but it sounds like battery to me. Especially if you charged it and it still just clicks.
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Old 10-18-2015, 08:50 AM   #5
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One way to test it would be to connect a voltmeter to the battery. It should read north of 13 volts.
Push the start button and watch the meter. I bet it drops big time.
Another way would be to put a good battery in it and see what it does.

My advice is take it to cycle gear and give em a chance to do the right thing.
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Old 10-18-2015, 08:55 AM   #6
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Just push start the thing. Honda Rebel is one of the easiest bikes I've ever had to push start. I ran around for 2-3 days by only push starting it.

Make sure battery cable connections are tight.
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Old 10-18-2015, 08:59 AM   #7
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Quote:
Originally Posted by mx6er View Post
Just push start the thing. Honda Rebel is one of the easiest bikes I've ever had to push start. I ran around for 2-3 days by only push starting it.

Make sure battery cable connections are tight.
He's right. There's probably enough capacity in the battery to operate the ignition for a while but when the battery finishes dying you will be stuck.
If you're in a bind for cash and must use the bike, you might get away with that for a little while.
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Old 10-18-2015, 11:56 AM   #8
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Quote:
Originally Posted by bumblebee View Post
One way to test it would be to connect a voltmeter to the battery. It should read north of 13 volts.
Push the start button and watch the meter. I bet it drops big time.
Another way would be to put a good battery in it and see what it does.

My advice is take it to cycle gear and give em a chance to do the right thing.
Without the voltmeter I can tell the battery is losing it, after a 5 minute try it goes back to buzzing when I try to start it
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Old 10-18-2015, 01:00 PM   #9
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Quote:
Originally Posted by bumblebee View Post
He's right. There's probably enough capacity in the battery to operate the ignition for a while but when the battery finishes dying you will be stuck.
If you're in a bind for cash and must use the bike, you might get away with that for a little while.
Honda Rebel runs with/on a CDI. It'll still start and run even without a battery.
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Old 10-18-2015, 01:04 PM   #10
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the sound in second video is different

It sounded more like a the carb leaked gas into the cylinders & locked the motor. Sounded like starter was trying to kick but couldn't. Before you try push starting or anything like that. Pull out spark plugs & try to turn over with them out. Be careful because gas may go shooting out.
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Old 10-18-2015, 02:06 PM   #11
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Clean the starter solenoid and all of the grounds on the bike, especially where the coil mounts to the frame.
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Old 10-18-2015, 05:19 PM   #12
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Quote:
Originally Posted by supadupa View Post
the sound in second video is different

It sounded more like a the carb leaked gas into the cylinders & locked the motor. Sounded like starter was trying to kick but couldn't. Before you try push starting or anything like that. Pull out spark plugs & try to turn over with them out. Be careful because gas may go shooting out.
If it did leak, would it be a simple solution to just dump it all out and put in new oil?

Quote:
Originally Posted by pbfoot View Post
Clean the starter solenoid and all of the grounds on the bike, especially where the coil mounts to the frame.
Checked and it seemed clean everywhere
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Old 10-18-2015, 06:10 PM   #13
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Like was posted earlier, check the battery with a volt meter. 12.65 at battery with engine off. 13.66 to 14.3 while running.
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