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  #11  
Old 03-13-2013, 07:19 PM
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thatsmrmastercraft thatsmrmastercraft is offline
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Originally Posted by 96prostar190 View Post
I love my boat man, taking it out tomorrow for the first time of the season!

Your boat looks great too by the way! Its nice to see people keeping the classics alive!
Thanks. Best of luck on the maiden voyage. I remember the apprehension, then the exhilaration of the first successful trip with my boat. Not sure how I survived before I got my MC, but I know where a lot of my free time went.
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  #12  
Old 03-13-2013, 07:37 PM
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j.mccreight@hotmail.com j.mccreight@hotmail.com is offline
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Originally Posted by 96prostar190 View Post
Remove which terminal? + or -? Hey I'm game for new ways to do things!
Does not matter which connector you remove just make sure which ever connector you remove does not contact the other one or any metal that may be around, so the negative one would be the one I remove and it does not matter if the boat has points or electronic ignition, And yes you will have fewer volts at idle versus a higher rpm I don't know the rpm cutoff or the voltage cutoff. The manual does state that at 1500rpm and above you should be producing more amps.
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1989 MasterCraft TriStar 190 SE
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  #13  
Old 03-13-2013, 07:39 PM
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A simple digital volt meter is under $20 at any auto parts store....it's a good tool to have for many things (trailer lights, etc.)

Congrats on your boat purchase! Welcome to the club.
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  #14  
Old 03-13-2013, 07:56 PM
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Originally Posted by j.mccreight@hotmail.com View Post
Does not matter which connector you remove just make sure which ever connector you remove does not contact the other one or any metal that may be around, so the negative one would be the one I remove and it does not matter if the boat has points or electronic ignition, And yes you will have fewer volts at idle versus a higher rpm I don't know the rpm cutoff or the voltage cutoff. The manual does state that at 1500rpm and above you should be producing more amps.
Great, thanks a lot for the help!
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  #15  
Old 03-13-2013, 07:56 PM
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As long as the voltmeter is reading 13 volts or more your alternator is charging. At higher rpm it will increase a bit, and if the battery is low on charge it will be 14 or 15 volts. I wouldn't remove a cable from the battery while it is running. You would be breaking a circuit with possibly some serious amperage. I'm an electrician, you can get a major spark when you do that. Definite risk of burns to your hands.
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  #16  
Old 03-13-2013, 07:56 PM
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Originally Posted by Jerseydave View Post
A simple digital volt meter is under $20 at any auto parts store....it's a good tool to have for many things (trailer lights, etc.)

Congrats on your boat purchase! Welcome to the club.
Thanks man! Yeah, I should stop being cheap and go get one .
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  #17  
Old 03-13-2013, 07:57 PM
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Originally Posted by ricford View Post
As long as the voltmeter is reading 13 volts or more your alternator is charging. At higher rpm it will increase a bit, and if the battery is low on charge it will be 14 or 15 volts. I wouldn't remove a cable from the battery while it is running. You would be breaking a circuit with possibly some serious amperage. I'm an electrician, you can get a major spark when you do that. Definite risk of burns to your hands.
So why would my volts be saying 14-15 if my battery is low on charge? What if my volt range is down to 10-11?
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  #18  
Old 03-13-2013, 07:59 PM
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Also, when you turn on the ignition before starting the engine, the voltmeter will read around 12 volts or slightly under. After you start it, if it doesn't go higher that would indicate an alternator problem.
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  #19  
Old 03-13-2013, 08:01 PM
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Originally Posted by 96prostar190 View Post
So why would my volts be saying 14-15 if my battery is low on charge? What if my volt range is down to 10-11?
If the voltmeter is reading 10 to 11 when the engine is running, that would indicate a charging problem.
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  #20  
Old 03-13-2013, 08:02 PM
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Originally Posted by ricford View Post
Also, when you turn on the ignition before starting the engine, the voltmeter will read around 12 volts or slightly under. After you start it, if it doesn't go higher that would indicate an alternator problem.
ricford: Super helpful, thank you. Ok, what's the lowest you'd run it? and what kind of charging problem? alternator?
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