Subject: Speedo and tach
Author: Prusnek
Date: Feb 1, 2005, 4:03 PM
Post ID: 1718316789
AJ:
The tach is an electronic one, no cable. Your problem may be simply
the wiring running to it from the coil, I think, or a bad ground. If you
have one, check out the wiring diagram and hope that that's the problem;
as someone mentioned they're not cheap to repair. Mine stopped working
once after I inadvertently hooked the battery up backwards. The bike ran
for quite a while (weeks) while I tried to figure out what to do with
the tach, then noticed the backwards battery connections, switched them,
and noticed that suddenly the tach worked again. Cool! Not to say this
is your problem, but just an interesting sidebar to what kind of abuse
these bikes will put up with and still run.
Regarding wiring, the lights on my '73 Laverda SF1's speedo is
grounded through the actual inner cable. Weird.
John Prusnek
http://myweb.core.com/photos/spajohn@raex.com/MotoGuzziDecals
| I bought my bike with a bum speedo and tach. The previous owner told me that the speedo did not work when he bought the bike but that the tach failing was recent. I have not investigated the tach yet. He told me that the cables had been replaced so that the problems were most likely the gauges themselves. Receipts seem to back up that the cables were indeed replaced. Questions: Are these gauges rebuildable, who does it and if so is it worth it? Are these available NOS from a dealer or Guzzi shop or is my best luck to wait for one to come up on eBay? Thanks for your gifts of knowledge. -AJ AJ Hu |