Neeja
04-10-13, 07:33 PM
Probably know the answer already, but querying anyone good with electrics.
I had a R/R go duff on the hornet last year, and replaced with a MOSFET unit from an R1. Since then I've had pretty much no issues. However, my Oxford heated grips have a battery cutout feature which means if the battery drops below something like 11.8v a green light flashes and they cut the power.
Recently that happened a few times for a few minutes each time. Last night they were fairly bad, so when I got back I put a multimeter on it and discovered the battery at low voltage and not charging properly (about 12.2v). I checked all the connections to the R/R (easily accessible), and the connector between the stator and the R/R, all seemed okay, but cleaned the connections and put back together. Bike starts, battery at 12.8v idle with lights + grips on, rising to about 13.5v. All good, I thought.
Today on the way to work the low battery flashing light came on and stayed on. I managed to get the bike home tonight, but by the time I was back, the battery was too weak to turn the engine over, showing 11.3v.
After charging it back up, the bike was charging low again. Bugger, I thought. In the process of checking around, I discovered that everything seemed in tolerance according to the Honda manual. In frustration, I was going to check to see if there was a current leak anywhere, when I discovered the battery earth nut had stripped its threads and was loose. Replacement in, checked for good contacts, charged battery, R/R now showing an output of 13.5v rising to 14v. All good.
Here's my query:
After doing all this, I decided I'd just try to rule out anything else that may be intermittent, and decided to check the stator output. Bearing in mind the R/R is now outputting 13.5v-14v, I'm unsure what to make of this.
Resistance is all in spec for it. However, the output between each phase seems to be 9V ac, rising to about 13V ac at 5krpm. Output between each phase and ground is about 14-16V ac.
Now, I'm fairly sure I remember that the output should be 20-70Vac. Is this right? If so, is the stator shot? If so, how is the R/R outputting the correct voltage?
I had a R/R go duff on the hornet last year, and replaced with a MOSFET unit from an R1. Since then I've had pretty much no issues. However, my Oxford heated grips have a battery cutout feature which means if the battery drops below something like 11.8v a green light flashes and they cut the power.
Recently that happened a few times for a few minutes each time. Last night they were fairly bad, so when I got back I put a multimeter on it and discovered the battery at low voltage and not charging properly (about 12.2v). I checked all the connections to the R/R (easily accessible), and the connector between the stator and the R/R, all seemed okay, but cleaned the connections and put back together. Bike starts, battery at 12.8v idle with lights + grips on, rising to about 13.5v. All good, I thought.
Today on the way to work the low battery flashing light came on and stayed on. I managed to get the bike home tonight, but by the time I was back, the battery was too weak to turn the engine over, showing 11.3v.
After charging it back up, the bike was charging low again. Bugger, I thought. In the process of checking around, I discovered that everything seemed in tolerance according to the Honda manual. In frustration, I was going to check to see if there was a current leak anywhere, when I discovered the battery earth nut had stripped its threads and was loose. Replacement in, checked for good contacts, charged battery, R/R now showing an output of 13.5v rising to 14v. All good.
Here's my query:
After doing all this, I decided I'd just try to rule out anything else that may be intermittent, and decided to check the stator output. Bearing in mind the R/R is now outputting 13.5v-14v, I'm unsure what to make of this.
Resistance is all in spec for it. However, the output between each phase seems to be 9V ac, rising to about 13V ac at 5krpm. Output between each phase and ground is about 14-16V ac.
Now, I'm fairly sure I remember that the output should be 20-70Vac. Is this right? If so, is the stator shot? If so, how is the R/R outputting the correct voltage?