geodoc
Cruisin' Guzzisti
- Joined
- Oct 27, 2008
- Messages
- 205
My Tonti hot-rod was in storage for the winter, but with a bit of sun peaking out, decided to fire it up and get it ready for Spring.
Seemed to be fine, but the Moto Spezial speedo display was flashing "charging error" before the whole gage went TU. A little investigating showed that I had on over charging condition - no control at all, voltage right up past 15V at less than 2000 RPM.
It's got a Saprisa system that was working fine all last year. Proceeded to check for tight connections, loose grounds, etc. Had proper battery voltage indications at the appropriate leads with switch on but not running. Consulted Guzziology for ideas. It mentions many Saprisa faults are due to poor grounding of the regulator. Installed an additional ground lead between regulator and engine case where the battery is also grounded. Fired it up and still over voltage.
OK ................ get a new regulator, after all, what else could it be? Installed, drank a cup of coffee and started and ............................ s**it ............. still over charging.
The Saprisa system Googles little of value for trouble shooting tips. With a Bosch system there's a bit of cheating you can do to test things, but not non that I'm aware of with the permanent magnet Saprisa.
So ........... anybody been down the Saprisa over charging road and emerged victorious? How'd you get there?
GD
Seemed to be fine, but the Moto Spezial speedo display was flashing "charging error" before the whole gage went TU. A little investigating showed that I had on over charging condition - no control at all, voltage right up past 15V at less than 2000 RPM.
It's got a Saprisa system that was working fine all last year. Proceeded to check for tight connections, loose grounds, etc. Had proper battery voltage indications at the appropriate leads with switch on but not running. Consulted Guzziology for ideas. It mentions many Saprisa faults are due to poor grounding of the regulator. Installed an additional ground lead between regulator and engine case where the battery is also grounded. Fired it up and still over voltage.
OK ................ get a new regulator, after all, what else could it be? Installed, drank a cup of coffee and started and ............................ s**it ............. still over charging.
The Saprisa system Googles little of value for trouble shooting tips. With a Bosch system there's a bit of cheating you can do to test things, but not non that I'm aware of with the permanent magnet Saprisa.
So ........... anybody been down the Saprisa over charging road and emerged victorious? How'd you get there?
GD