I have a 1984 winnebago motrhome with a 6500nh rv onan generato runs getting power on the line but none in the motorhome

what size 21 ft or 23 ft and as for service manuals can try rv dealers--rv shops --rv forums or online searches such as https://www.winnebago.com/owners/owner-resources/manuals-and-diagrams

Winnebago RV Sales ' Itasca RV Sales ' Winnebago ...

www.lichtsinn.com/new-rvs-for-sale.aspx

Location: Main ... The All New Fuel Efficient Fuse with the Ford Transit Power Stroke Diesel! .... New 2016 Itasca Solei 36G The Forza and Solei Offer Diesel Pusher ... New 2016 Itasca Sunstar LX 27N All New Upgrades to the Vista and Sunstar with ... 2016 Brave Returns with Its New Crown as the 2015 RV of the Year Title!

Sunstar ' Specifications ' Winnebago RVs

winnebagoind.com/...a.../2015/sunstar/specificatio...

Winnebago IndustriesSunstar ... Length, 27'1", 31'3", 28'3", 31', 36'5", 35'5", 37'. Exterior Height1, 12'2", 12'2", 12'2", 12'2" ..... 2015 Winnebago Industries, Inc. All Rights Reserved.
Winnebago Industrieswinnebagoind.com/resources/manuals/Winnebago IndustriesIf you are not in a position to visit your dealer, some parts are available online at www.WinnebagoOutdoor.com. Please note that you can look up part information ...Winnebago RV Sales ' Itasca RV Sales ' Winnebago ...

Here you go download this pic

Did you get this fixed? this is an old post. If not visit www,advanced-power-technologies.com (Cert Cummins Dealers) They can answer your questions.

Check battery voltage, starter solenoid, then starter motor

I would try contacting the RV clubs to see if you can find someone who has a similar model.
You might find something on Ebay but I doubt it.

Is your generator wired in to an automatic switchover in the motorhome, or do you have external plug in on face of generator, or near it. The power from the generator needs to be attached one way or another to the motorhome. It may be as simple as plugging the cord from motorhome into it, depending on what set-up you have.

Yes it wil not let you run your motorhome out of fuel they set it up that way so you dont strand yourself you may have a air bubble in the fuel line to the generator try blowing air generator fule line back into the tank

the 10gauge purple wire on the solenoid should be HOT when starting. could be ignition switch or neutral saftey switch.