Kubota AV650 generator

Submitted: Friday, Dec 23, 2005 at 18:22
ThreadID: 29117 Views:8964 Replies:4 FollowUps:3
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Hi all,

I am fixing up a Kubota AV650 generator that we have ad in the shed for about 10 years unused. It was bought in about 1990. When I first got it out of the shed I checked the oil and fuel and then pulled the starter and it started first go. Only problem was it poured fuel out of the fuel pipe/carby seals. So now I have replaced those it no longer leaks from there. However it does pour fuel out of the air filter.

I was just wondering if anyone has a workshop manual on one of these or if anyone who knows about this sort of thing could have a guess as to why it would overfuel in such a massive way. There are about 3 screws to adjust on the carby but I don't know what they do. Fuel, air/fuel mixture and ???

This is a pic from the net. Bit of overkill to run the radio though I reckon. I can post some specific pics if anyone can help.


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Reply By: Member - Omaroo (NSW) - Friday, Dec 23, 2005 at 18:28

Friday, Dec 23, 2005 at 18:28
Actually - the generator pictured was not there to power the boombox. The reel on the rod is actually a really small, but powerful winch.

:)
AnswerID: 145309

Reply By: Shaker - Friday, Dec 23, 2005 at 18:38

Friday, Dec 23, 2005 at 18:38
3 screws ...... one may be idle speed, one will be high rev mixture & the other one low rev mixture. Is it diaphragm carby? May have a pinhole in it.
AnswerID: 145311

Reply By: Utemad - Friday, Dec 23, 2005 at 19:31

Friday, Dec 23, 2005 at 19:31
Thanks for the reply guys but I have it sorted. After frigging with it on and off all day I did what any self respecting 26 year old does. I rang my Daddy. He is a mechanical engineer after all. He reckoned that there would be something blocking the pin valve doohicky that is attached to the float in the carby. So I pulled the carby apart and lo and behold there is a peice of black plastic jamming the pin valve open. So once I had removed the plastic junk and put it all back together again it ran like a charm.

As for the screws I know one is the idle control as it idled up when I turned it. As for the others I didn't think it was wise to play with them now it is running sweet.

I checked the power output with my multi meter under no load and it read all over the shop for AC (I ouldn't get a good connection though) and 11.8v DC. It ran my 240v drill fine so I guess it works but I will have to load it up later to check to see if it idles up like I remember it used to all those years ago on Moreton.

So now I have a cool generator at my disposal. For the grand price of $4.50 for the replacement gaskets :-) Although I didn't need one before and can't see me needing one anytime soon. Oh well it is nice to have.
AnswerID: 145316

Reply By: Member - JohnR (Vic)&Moses - Saturday, Dec 24, 2005 at 08:50

Saturday, Dec 24, 2005 at 08:50
Now it's going you will really be able to alienate fellow campers ;-)

Hope you don't.
AnswerID: 145374

Follow Up By: Utemad - Saturday, Dec 24, 2005 at 12:00

Saturday, Dec 24, 2005 at 12:00
I don't like being annoyed by other peoples generators either. Can't see myself taking it camping. If nothing else it is frigging heavy!
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FollowupID: 398909

Follow Up By: Shaker - Saturday, Dec 24, 2005 at 23:29

Saturday, Dec 24, 2005 at 23:29
I don't see the difference between running a generator or running a vehicle to heat an in car shower.
Or loud music, or noisy kids, or noisy kids on mini bikes, or loud drunks, so why does everybody comment on generators?
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FollowupID: 399012

Follow Up By: Utemad - Sunday, Dec 25, 2005 at 00:00

Sunday, Dec 25, 2005 at 00:00
Because generators drone on for hours at a time and are used to run other noisy things like stereos and air conditioners.

I don't have an in-car shower, loud music, any kids, no mini bikes or large bikes and I'm not a loud drunk. I'd hate to camp next to anyone who did.

However I might be taking it to Fraser as I may have to man a radio point for a boat race. We will need back up power just in case of battery/alternator failure. However that will be up at Sandy Cape and I would only use it if I had to.
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FollowupID: 399022

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