Troubleshooting whats wrong with my CBR125R

[otwo_91]

The bike had been parked idle for a little over a couple of weeks. I went to turn it on yesterday and it would not start. I brought the battery home and plugged it in the charger. It did charge. The charger was blinking red which told me that the battery was low. Then it turned green.

I brought the battery into the bike and I was able to turn it on no problem. I did not ride it.

Today I turned it on (no problem.) I let it warm up for a few minutes then as I began to ride, while in first gear, I reached some 5k RPM's and it died. I let it rest for about 10 minutes, and it did turn back on. Same thing happened a second time.

Does not seem to want to run.

I did notice that when I touched the engine portion, it was quiet hot. More than what you would expect becasue it had only been on for a tiny bit.

There are no leaks as far as I can tell.

Is this a problem with the battery? I left it in the charger for 3 hrs yesterday. Maybe it needs a good 12 hour overnight charge?

 

[TK4]

Take the battery to a motorcycle shop and get them to test it with a load tester. If its old it may be capable of accepting a charge but not maintaining it. If its more than 5-7 years old its likely already toast.
Be aware, if you want a good quality Yuasa battery (like it came with when new) they are hideously expensive. There are less expensive alternatives but they will not last you as long.

 

[GVH]

It died while running at 5k rpm ? if it dies because of battery or charging problems usually more at low or idle. check the basic. Got proper oil level. Fuels flowing stuff like that.

 

[otwo_91]

Okay so I tried to start it again and it wont start all together. So I am thinking this is battery related. I took it out and put it back in the charger and its flashing red. So battery is low.

Im going to leave it to charge overnight.

One concern I have is that, if you look at the negative terminal (positive one also has the same issue) the washer is missing. You could tell that there used to be a washer.

When I connect the battery and I screw it, I am worried that because there is no washer, there may be a little 'give' and it could perhaps be causing problems.

I know thay when I screw it, its not really tight, but I dont know where I can find a washer. Is there a work around this? Electric tape?

Thanks!

 

[TK4]

View attachment 49210

Okay so I tried to start it again and it wont start all together. So I am thinking this is battery related. I took it out and put it back in the charger and its flashing red. So battery is low.

Im going to leave it to charge overnight.

One concern I have is that, if you look at the negative terminal (positive one also has the same issue) the washer is missing. You could tell that there used to be a washer.

When I connect the battery and I screw it, I am worried that because there is no washer, there may be a little 'give' and it could perhaps be causing problems.

I know thay when I screw it, its not really tight, but I dont know where I can find a washer. Is there a work around this? Electric tape?

Thanks!

Its got to be tight - find some washers.

 

[GreyGhost]

View attachment 49210

Okay so I tried to start it again and it wont start all together. So I am thinking this is battery related. I took it out and put it back in the charger and its flashing red. So battery is low.

Im going to leave it to charge overnight.

One concern I have is that, if you look at the negative terminal (positive one also has the same issue) the washer is missing. You could tell that there used to be a washer.

When I connect the battery and I screw it, I am worried that because there is no washer, there may be a little 'give' and it could perhaps be causing problems.

I know thay when I screw it, its not really tight, but I dont know where I can find a washer. Is there a work around this? Electric tape?

Thanks!

you need something conductive not an insulator. I would be surprised if that's your problem but washers are cheap so it's worth a shot.

 

[otwo_91]

Alright folks,

I guess I was stupid enough to think I can take a short cut on the washers. I found them, I installed the battery properly with the washers and no problems.

Tomorrow Ill be out for an hr or so on the bike, but as it stands, I think this is fixed. Original problem was battery needing a boost, then second problem was me being supremely lazy...