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electricity or whatever?! losing my mind (lemmy.world)

submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/[email protected]

19 comments fedilink hide all child comments

Hey y'all. I'm honestly lost and feel super down.

Facts: CBF1000 sc58
Last thing I did was get my alternator and regulator repaired/changed. My alternator was burnt out. The mechanic said that it's am usual problem with this model and the regulator is the problem.
I had to learn to take it out and rebuild it myself. About a month ago, I finally put the alternator back in and my bike actually started! I was overjoyed.
Since a week now I'm trying to actually ride it again and it won't start. I recharged the battery (Li-ion). When I tried starting it, the battery kinda drained immediately. It just didn't start. Luckily, I have a second (gel) battery that was full. I put that in and my bike didn't even light up. The fuses all look fine to me. The cables should be correct (there aren't that many options).

I just don't even know where to start. Thanks for reading

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[–] [email protected] 1 points 3 weeks ago (1 children)

Well it always takes me forever until I get the time to work on it. I think I just measured all of the things you mentioned. Nothing beeped. Again, the battery is draining by the minute. Again I checked the main fuse and it's fine. I'm measuring all kinds of things and don't really know what I'm supposed to do with it. I measured the beeps with the battery connected and it beeped with basically every metal part. I measured resistance with the battery connected and got about 7 ohm between the battery and the metal parts. The DVM manual says it should be between 0-1 ohm. I don't know anymore. I think I will message the mechanic who repairs the alternator. But it's been really long now

[–] [email protected] 1 points 3 weeks ago (1 children)

Something should've beeped, that indicates a disconnected ground connection..

[–] [email protected] 1 points 3 weeks ago (1 children)

Oh? I thought it would be the other way around. So I just need to check the regulator connectors?

[–] [email protected] 2 points 3 weeks ago* (last edited 3 weeks ago)

You'll have to use your intuition as we can't see what's happening there as you can, but the electrons need a way into the system as well as out.

Verify the connections are all truly seated, maybe even disconnect and look at them individually to see any evidence of arcing (black sooty appearance) or malformation (bent/twisted/what have you). Reconnect and verify everything is tightly snapped together, tug on it just to be sure, your engine vibration certainly will do the same.

E: to be clear, the meter will beep when there's a direct connection from a to b. I was trying to get your verification that the negative terminal of the battery was indeed connected to the regulator, to the frame etc. if it does not beep, that means the electrons trying to flow around are stuck at a broken connection, so cannot possibly get to your battery. Logically if the bike starts and runs, even momentarily, the connection from battery to engine spark system is ok. The dropping battery while running must mean that either the coil inside the engine is burned out, or the regulator itself isnt working, either because of being disconnected by a broken wire/connector or something inside the regulator itself has been zapped and killed.