Subject: Tach problem
Author: John Prusnek
Date: Oct 4, 2001, 5:35 AM
Post ID: 1708473751
Yesterday the 7-year old tractor battery I've been using in my '71
Ambo went south, I figure that I got my money's worth. After replacing
it, the bike started right up, although the charging light pulsed
brightly about 3 times when I revved the engine then went out and acted
normally.
The tach is now dead in the water, doesn't move, and I'm trying to
figure out how and if this could be related to the battery change. In
the past the needle would occasionally gyrate wildly for a second while
riding, but only very rarely.
Last night I poked around the wiring (which had been replaced with
a new harness several years ago) and checked the fuse, cleaned up its
contact surfaces, and the lead to the coil, both seemed fine. The tach
light comes on so I know it's grounded.
Does anyone know what can go wrong with these units? Being an
electronic tach I fear that something may be burned out. Anybody got any
clues?
John Prusnek