CALCXX

With or without political discussion? Faux news -- 176 over 119 CNN -- 120 over 74

Just the bag with the franken bolts please. Thanks. ( top photo )

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So it was Moto Guzzi who invented the center stand ?

Since you lose Boom control voltage when the engine stops. I am going to take a guess that the DC Boom control voltage is fed from K3 relay (Engine Run relay) opens on engine shutdown.

No idea. Lots of old timers lurk here and seldom post.

It could be worse. He could have rim locks.

Dano sold his XX many many years ago. Have not heard from him in atleast a decade.

I agree with Oscar. Wires need to be identified and labeled. If you look at Fig 3-4 Section 3-7, The drawing shows 7 wires leaving G1. Four of them are the main focus here for now. The wires they have marked as M4 - is neutral, M2- is ground, M3 - is a phase conductor, M1 - is also a phase conductor. The ground should be easily identified by measuring resistance to the chassis. (should read zero) The drawing shows the neutral and ground bonded at the terminal strip. I doubt it's bonded inside the generator? Maybe so? Your ohm meter should prove this. The phase conductors are shown connected also. Then the drawing shows this terminal feeding cb1 with an optional cb2 with 120v only potential. That does not match your nameplate yet it matches the RV way of use so I am also cautious to advise connection. Ac voltage needs to be measured between any combination of conductors. There should be wires elsewhere leaving G1 going to the starter relay (k1), a wire to grnd and a wire to a blocking diode. (K1 energizes a winding in the generator making it a temporary starter motor.) Not real concerned about that right now because you can start it. Later on we can check for dc voltage after the blocking diode. I now realize after pissin out the martinis and beer that my Onan 4.0 is a contractors model and doesn't fit this conversation. I know absolutely zero about this battery isolation gizmo. So, I am probably not much help here.

The starter relay with the small wires is more than likely the starter motor circuit for the generator and the starter relay with the large wires is probably the battery isolation tom foolery. Good night boys.

Oscar, it does make 240v and it does charge the battery. Thanks for verifying that it is not an RV unit.

Oscar, no reason to shout. I never said my Onan 4.0 came from an RV. Your Onan says RV. Mine does not. Your Onan makes 120v. Mine will make 240v and Joes nameplate says it will also. Thanks for the RV education but honestly, I don't give a damn. Joe, I lied. It seems I have been drinking all night. Talk to ya later.

You are embarrassing me now. I would have to dig that fukr out from underneath the table saw behind boxes of treasures to take a picture for you. The thought of the generator running only until the battery dies is not what I would take camping. LOL I'm glad you can occasionally just to recharge the battery. fwiw, Joes name plate shows 120/240v. it must not have come from an RV ?

Oscar, may I suggest you put your voltmeter on the battery terminals while the Gen-set is running stand alone? I am curious why yours doesn't charge all night in the desert.

I'm curious. Mine produces 240v. Is your RV Gen-set tapped for 240 or 120V only? I have no knowledge of RV's. I thought they are 120V only. Is that true? Mine is on a homemade cart and has electric start.

Yes

Yeah, mine charges. Ran it in my shop with volt meter. edit: yes electric start

You might be really angry when I suggest you buy a Honda powered hyd pump and give up on the Gen-set. Battery powered tools for any application.

Joe, I been drinking tonight and you may be very unhappy with what I am about to tell you. Carlos has provided you with a PDF file. You need to look on pg 6-16 dwg# 611-1143 rev C This shows how it should have come from the factory. This shows that it did have DC voltage for excitation and charge voltage. I have an Onan 4.0 and it charges the battery. Bummer for you. The previous owner gave up on the generator and cut the wires. Makeshift drive to the hyd pump. I was wrong and missed your second post showing the caveman belt drive. That is why I suggested earlier to concentrate on the generator. So sorry. Fly me out there and I can fix it for you.

Phillip, I can't explain it but that is just the coolest fukn bike. Not the best of anything but cool.

I have never been close to a Moto Guzzi yet I am drawn to and respect them. I hope you complete this quest. I understand.

I'm curious, what all is being powered by the 120vac generator? Have you checked the DC charge voltage at the generator? I don't have a clear picture of the parallel battery switching/isolation tom foolery going on. imo, you should verify that the Onan can stand alone and then introduce battery switching backup in emergency. The hyd pump is probably just an engine starter motor driving a hydraulic pump. Draws a hellava lot of current. I am not surprised it drains down batteries even in parallel.

Joe, I'll take some pics and put together some info. We can let this thread die.

IIRC, you rode the 954 when you were here?

The 954 has been a really good bike. I am going to miss it.