Volt Quick Test w/o Tach

[Guest]

Hey all, not sure if this is the right place to post. Bit of an odd problem with my charging system and following all the great posts here (quick test) as my tachometer is not working.

Readings as of now after sitting on charger for about 4hr:

13.25 nothing on
12.35 with ignition on
13.00 idle

Seems to hit about 13.5-14.5 at 2500 RPM, then rockets up to 16.5-17 with rev at 5000 RPM. Problem is im not sure exactly the RPM and just going off my ear. If for example im actually revving at 6500 RPM is 16.5-17 volts normal or okay?

My gut says bad regulator and probably an unhealthy battery as a result of being overcharged for the last year. Any help would be much appreciated!

[roeme]

Way too high, regulator's dead, or about to give up the ghost.

Replace ASAP.

Battery seems to have taken a beating but still holding up.

Continuing to use the bike will damage the battery, among other things.

Edit: Depending on how long the bike was used like this, do begin to look for replacement bulbs, as they will have a greatly reduced life expectancy.

[Nessism]

Your R/R is bad. Search out info on the SH775, there are about a bazillion posts about them and why they are the best option. you can get one for $40 shipped off ebay, and then order up the Triumph connector plug. Again, search out info, this is an extremely common topic.

[posplayr]

+2 on bad regulator; probably did not stress too much (although 17V is getting high)