High voltage over 3500 rpms

[turbinedoctor]

Originally Posted by THEFERMANATOR

It's possible to add a regulator, but it is easier to run 2 batteries and turn on a couple of lights to keep the charge down.

Maybe I can talk my wife into a 200watt stereo system for the boat by telling her it is to keep the batteries from over charging.

[turbinedoctor]

I just dropped a line to CDI tech support to see what they have to say about a regulator for this type charging system. I'll let you know what they say.

Probably " turn on some lights and install a second battery"

[steplift20]

same thing happened to me,, if you tach is working than your rectifier is good check your regulator,, mine was doing the same thing the faster the motor woruld run the higher the volts would get
first check the terminals on the regulator and clean them but your probably going to have to replace it

[Skools Out]

no exactly all true the tach will also work off the yellow/gray wire which some dealers will do so the tach works without spending the money to install a new $100 rectifer

[bigshrimpin]

88 should have a 16amp stator with a rectifier and the small voltage regulator.

[randlemanboater]

I agree.......install more electronics to use up that power!!!!!!

[THEFERMANATOR]

BIGSHRIMPIN is the one to talk to about MERCS. Also HUMMINBIRD used to make an inline power box that would cut the voltage to your electronics to keep them below 13.8 even if your battery went to 18. But 18 is too high and you need to address that issue first. I have seen as much as 16 and sometimes 17 with no load on a 12 amp system before. Also keep a close eye on the water level in your battery at those charge levels, it doesn't take long to boil all the water out at 18 volts.

I just checked one of the big online CDI retailers and the regulator/rectifier for the 16 amp system is $145, part #194-8825K1. Make sure the grounds are good first though as without a good ground to the regulator it cannot control the charge.