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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: saha6818 on August 01, 2015, 04:26:05 PM

Title: Not Charging Until First Rev Over 3k+
Post by: saha6818 on August 01, 2015, 04:26:05 PM

 :dunno

I'm sitting on a bus because my dumb ass forgot to rev my engine after restarting the bike.

My K100LT now has an aftermarket instrument cluster. Perhaps that's why the charging system doesn't kick in until the first time on the ride that I get above 3k RPM or so. I have a warning lamp that tells me it's charging. I think it's hooked up to the charge warning lamp to provide resistance to allow the system to function. My battery is exceptionally small, so the bike can only run for 10 minutes without help from the alternator.

Do you, brick savant, know how I can trick my little ride into charging whenever it's running? My sore feet will thank you.

I'll get the bike back home soon to answer any questions about what the heck I did wrong to the wiring.

Title: Re: Not Charging Until First Rev Over 3k+
Post by: K75RT Keith on August 03, 2015, 12:06:51 PM

I haven't found a work around other than to rev it to 3K when I first start it. 
If your battery is only good for 10 minutes, What is taking up that time before you to get some revs on the motor? 
Letting it warm up for that long is likely worse than any imagined damage from starting and going.

Title: Re: Not Charging Until First Rev Over 3k+
Post by: saha6818 on August 03, 2015, 01:43:57 PM

I simply don't need to rev it very high while riding - it's got plenty of torque. The exhaust is pretty loud, so I like to keep it down in the neighborhood. That plus sitting in traffic. So it seems I just need to devise a way to remind myself to rev it up. Or get a bigger battery. Thanks!

Title: Re: Not Charging Until First Rev Over 3k+
Post by: K75RT Keith on August 04, 2015, 11:01:18 AM

It only takes one blip at start up on mine.  Don't know what hour your starting the bike so hard to tell if you'd annoy the neighbors that much.  If you've got a Harley guy with straight pipes in your neighbor hood, they'll likely not even hear your brick bark once.

Title: Re: Not Charging Until First Rev Over 3k+
Post by: saha6818 on August 04, 2015, 09:18:16 PM

I don't have a Harley guy in my neighborhood - it's more of a gunfire spot.  :mbird That said, my bike is quieter than both, so I'll just try to remember to blip it at the end of the street. For what it's worth, I'll add a little digital voltage gauge (like I just put on my other bike) to help remind me. If only I could just add more resistance to the warning lamp circuit...

Thanks!