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V-Star 1100 charge voltage w/o tachometer V-Star 1100 charge voltage w/o tachometer
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Old 10-03-2009, 07:44 AM   #1 (permalink)
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Join Date: Aug 2009
Bike: 2001 Yamaha V-Star
Posts: 13
Default V-Star 1100 charge voltage w/o tachometer
How does one test the charging voltage without a tachometer to know when the engine is at 5000 rpms? I don't have a tach to hook up inline with the rear spark plug wire.

I'm thinking about just testing the voltage while revving up the engine high enough to feel good about it. At least I can see if any voltage is coming out of the rectifier.

I was driving home at night when the speedometer began jumping around with dim headlights and driving lights. Switching to high beams (one light now), it quit jumping, but only for a while. Then back on dims it was at zero. By the time I got home speedo zeroed on high beams also. Before that I was wondering if the headlights were a bit dim. Arriving home, I tried to restart but battery would not even honk the horn.

I'm charging the battery to start up the bike and test charging system, but will have to guess at 5000 rpms.

Any suggestions?


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