Hello all.
k75C 1986
My bike has just one cable from the - of the battery to the gearbox ground point.
It's not a big one, a little "thin" one as i perceive it.
The point is that i've had issues with the starter relay in the past ( and yesterday), because of low voltage in the battery.
I need to say that even if i don't use the bike a lot, i charge it time to times, and the battery is one year old.
As yesterday the relay stucks again, and i was in need to turn off the bike releasing the clutch in 1st gear and full brake, today i've pluged in a new Battery tender junior 800 (
https://www.batterytender.com/battery-tender-12v-800ma-selectable-lead-acid-lithium-battery-charger_7) to keep it allways charged, and the battery tender in 10 minutes shows green, as a full charged battery.....
So my mind deduces:
1. The battery is not good anymore, and doesn't has "amperes to deliver"
2. The starter ( 1 year old) despite having polished the internal contacts the first times it get's stucked, now it's "sensible to low voltage"
3. The Starter is not receiving good voltage because of the thin wire and where it's connected ( i sanded all the ground points one year ago, and applied deoxit)
It's silly to think that the wiring is not the best, and if the battery drops a little in voltage the starter get stucked straight?
A healthier ground to the starter, can be of help in that way?
Or i'm delirious?
Last info: 2 days ago, after a while without riding i've seen in the negative contact of the batterie itself, a white formation, that i was abble to clean with a screwdriver, but maybe this generates more resistance to the voltage, i think on clean that with isopropil alcohol.
PD: i don't have any extra instruments plugged in the battery.