[Mike Swafford]

Have you tried an AVR? Call Powermate they might still have a listing for the alternator.

The Honda engine can be sold on Facebook marketplace and recoup a chuck of the cost of a new generator.

Yep, I tried the AVR and brushes first, no luck. My ohm meter was telling me it has deeper problems, so I pulled it apart. Now I see some very dark colored windings, and that the rear bearing had been going out too, letting the rotor and stator rub, so I think it is junk now. Powermate says the gen head is discontinued and unavailable.

 

[Mike Swafford]

I looked for a genertor head for a B&S 10KW. I found several. Price was $7-800$ plus 2-300$'s shipping.
All total was near $1000. I let it slide. Not worth the excessive cost and you still have an old generator.

Yes, the only match I found was in Arkansas, and a little over a grand before tax and shipping. Not an option.

 

[Mike Swafford]

I looked for a genertor head for a B&S 10KW. I found several. Price was $7-800$ plus 2-300$'s shipping.
All total was near $1000. I let it slide. Not worth the excessive cost and you still have an old generator.

I saw a listing for Ryobi gen heads at less than $300, but I can't find out if they will bolt onto my engine or not. Talking with the vendors didn't help either, not sure if they even know what they are selling.

 

[Mike Swafford]

You might be able to find a used or "for parts" generator that has the GX390 engine, like this on on ebay:

13 HP USED HONDA PRO SERIES GENERATOR GX390, 6.6 KW- 8 KW. | eBay

Find many great new & used options and get the best deals for 13 HP USED HONDA PRO SERIES GENERATOR GX390, 6.6 KW- 8 KW. at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Personally, I'd just upgrade to a good inverter model and try to sell your gen for the engine value.

Any idea what the engine value might be? Considering it has that tapered shaft, and can't be used for some of the usual applications?

 

[Mike Swafford]

IME usually better to buy a new "whatever" than trying to find replacement parts for old stuff. I'd guess you can get a replacement for less than $1,000 with a three year warranty. Here's a Westinghouse I grabbed at Random at Amazon, everything is driven by price points, so that size, pick a manufacturer, price will be comparable. I love to tinker and bring back old stuff, but not in the dark, cold and snow (up here).

Amazon.com: Westinghouse 7500 Watt Home Backup Portable Generator, Transfer Switch Ready 30A Outlet, Gas Powered, CARB Compliant : Everything Else

Amazon.com: Westinghouse 7500 Watt Home Backup Portable Generator, Transfer Switch Ready 30A Outlet, Gas Powered, CARB Compliant : Everything Else

www.amazon.com

I like the new stuff, too! I did buy a new unit when mine went down 4 days into the darkness, I am just trying to put together a dependable spare for the next time.

 

[Mike Swafford]

Good question. Maybe a couple hundred bucks if it runs well. You could try contacting James Condon by email and see if he has any ideas for you. He knows a lot about generator repairs:

https://www.youtube.com/user/jcondon2007/videos

Love his channel. Best generator repair videos on Youtube IMO.

Yes, James Condon does a great job with his generator repair videos, I had already subscribed. He was the one who told me about the Ryobi gen heads, I j u st wasn't comfortable buying one without a pretty good idea if it would bolt
up. And they were out of stock anyway.