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Hi,
New to the forum so if I'm on the wrong board just tell me!
I purchased a used alumacraft trophy 200 last fall. It has a Yamaha in Mercury clothes on it. The number of the motor is Ot862535. At first I got the story that it was just a Mercury powerhead but the fact that only a Yamaha lower unit lube fitting works and the blue paint under the black on the skeg seals the deal.
3 questions.
1) I understand the alternator on the motor is supposed to be high output even at low RPM's. But the other day I was out with batteries that were charged (maybe not 100% charged but a good batteries). I *****ed for 4-5 hours at 6-800 RPM's, then anchored. Of course the motor would not start. (I had not been checking the volt reading that close.
) I swapped in a deep cycle and started the boat. The gauage on the GPS read 14 volts, after another 30 minute ride back to the dock (after dark in large waves
) it read 12 volts. When I power loaded and ran up the RPM's the volts jumped up to 13.8. (My depth finder also crapped out during this fiasco as it was powering off when I hit the trim/tilt-hopefully just a fuse.
) I think all of that means that the motor will charge the battery but not below 1000 RPM could that be possible or is there more at work here?
2.) 2nd Battery, per the owners manuel, no additional isolator is needed I can just add another battery per the wiring diagram and cross connect the negatives, seem accurate?
3.) There's no trim guage on the rig today, I think there's a Trim/Oil guage harness I need but given the motor's heritage how do I know which harness to get?
Thanks!
New to the forum so if I'm on the wrong board just tell me!
I purchased a used alumacraft trophy 200 last fall. It has a Yamaha in Mercury clothes on it. The number of the motor is Ot862535. At first I got the story that it was just a Mercury powerhead but the fact that only a Yamaha lower unit lube fitting works and the blue paint under the black on the skeg seals the deal.
3 questions.
1) I understand the alternator on the motor is supposed to be high output even at low RPM's. But the other day I was out with batteries that were charged (maybe not 100% charged but a good batteries). I *****ed for 4-5 hours at 6-800 RPM's, then anchored. Of course the motor would not start. (I had not been checking the volt reading that close.
) I swapped in a deep cycle and started the boat. The gauage on the GPS read 14 volts, after another 30 minute ride back to the dock (after dark in large waves) it read 12 volts. When I power loaded and ran up the RPM's the volts jumped up to 13.8. (My depth finder also crapped out during this fiasco as it was powering off when I hit the trim/tilt-hopefully just a fuse.) I think all of that means that the motor will charge the battery but not below 1000 RPM could that be possible or is there more at work here?2.) 2nd Battery, per the owners manuel, no additional isolator is needed I can just add another battery per the wiring diagram and cross connect the negatives, seem accurate?
3.) There's no trim guage on the rig today, I think there's a Trim/Oil guage harness I need but given the motor's heritage how do I know which harness to get?
Thanks!
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