Need help with F150TXR wiring please

[bear_69cuda]

Morning Gang,

I have a factory dual battery set up in my Hurricane with Yamaha F150TXR, one battery has only trolling motor (deep cycle) with 40A breaker, and the other cranking battery has everything else, all of house, and starting. The stupid dealer removed the factory battery switch with Bat I, Bat II, Both, and OFF functions, and installed a on/off switch only on cranking battery. Then connected the trolling motor only directly to the deep cycle. I was pissed off! They gave me my original switch back and said the reason they did this is that the Yamaha alternator would not charge both batteries. I know the Alt output is only 35A but thanks for asking folks! Anyhow I would like to have only the starting functions, and auto bilge connected to cranking battery ( Bat I ), and all other house functions, lights, stereo, including the trolling motor on (Bat II) I have installed an onboard charging 20A dual leg guest system, and plan on putting a VSR (voltage sensitive relay) system on my battery set-up. The VSR senses voltage drop and separates the batteries only charging one at a time.
http://www.ezacdc.com/Scripts/prodView.asp?idproduct=109

With this system my cranking battery (Bat I) is only for starting the boat/auto bilge, house (Bat II) is for all other functions including trolling motor, and if need be I can combine batteries.

My questions are,

What wires from the Yamaha get connected my (Bat I) + pos on switch? Is there only one main positive lead from the Yamaha? If so does this also route the alternator current for charging?

Do I need to run a main fuse or does the Yamaha harness have this currently?

I need to get a FSM with a wiring diagram.... Unless anyone has it handy?

Thanks in advance!

 

[rodbolt]

Re: Need help with F150TXR wiring please

no you need to find a dealer with actual technicians.
look for one that at a minimum has a tech with electrical certification on the wall.
ALL yamaha V6,V8 and F150 and up have a built in battery isolator since about 1990.
your engine ALREADY has a battery Isolator and CAN charge two batteres independantly all you need is the harness.
consult the 05 or up yamaha rigging guide.
the isolator connector is laying in your engine cowl waiting to be hooked up.

 

[bear_69cuda]

Re: Need help with F150TXR wiring please

Thanks rodbolt,

I found this info regarding addition of accessory battery in my owners manual. It looks to be only a small red lead that connects from the engine harness to the accessory battery, then a large gauge jumper lead form both negative battery terminals. I would like to re-install the original battery switch as well. It would seem there isn't a need for the VSR set-up with the motor having a isolator. I hope to just do this myself. The dealer I purchased this boat from has a Yamaha certified tech, I can't possibly believe they're certified in electrical. When I asked why he took out the original switch, he was defensive and asked me what I want him to do? How about not touch my boat anymore.

 

[rodbolt]

Re: Need help with F150TXR wiring please

ask to see a copy of the 08 rigging guide.
it has pictures,drawings and the 13.5ft isolator lead part number.
lead assy comes complete just plug it into your engine conecctor and attach the other end to a house battery or the house battery side of the switch.

 

[bear_69cuda]

Re: Need help with F150TXR wiring please

Thanks again dude,

Do I ask the dealer to see rigging guide?

Would it be a good idea to have circuit protection on the end of that lead, before switch or battery?

I kindly spoke with my sales rep today, and said in the future it may be a good idea if their techs were not only properly certified, but rig these boats per manufacture spec, instead of how they feel is the correct way. I'm still in disbelief... He offered to correct the boat, and I said there is no way I'm letting them touch the electrical system at all... Hell when they spliced the adapter plug end for my trolling motor, the butt connectors with heat shrink were never even heated, just wrapped with electrical tape. I properly re-installed that mess as well...

 

[bear_69cuda]

Re: Need help with F150TXR wiring please

Hi again,

Where is this aux isolator plug located on the motor? I cant see to locate...

 

[rodbolt]

Re: Need help with F150TXR wiring please

yes ask to see and possibly copy the pertanint pages.
the aux plug is a red 10Ga wire with a water proof cap on it. usually its under the airbox at the front of the engine.

 

[bear_69cuda]

Re: Need help with F150TXR wiring please

Thanks rodbolt,

I found the plug, and the PN for harness. MAR-69JIS-0L-ED

and for anyone interested, I have a PDF of the 2005 and up rigging guide with all diagrams. I would be happy to share, e-mail, or have moderator post so all can view!

Thanks again dude!