Yamaha 1000 Propane Conversion - URGENT

[neil.ervin]

My carb has been converted by US Carburetion and ready to ship back to me. They are asking what diameter hose to ship to me. I haven't a clue.

Since their conversion includes a regulator, I assume I'll have to connect at the tank, rather than after the switch-over regulator (which I had hoped).

So what size hose do I need? What size tee? How many quick disconnects?

Thanks for your help.

[Wayne&Sam]

When I ordered mine they only asked about the length hose I wanted. The diameter is bigger than the hoses on my Safari's tanks. I bought a quick disconnect from them (because of the size) but bought the other fittings I needed from a local hardware store. I also got extra disconnects so I can use my BBQ off the same hose.

[neil.ervin]

Where does the hose connect in? At your tank? Or after the switch-over regulator?

[ROBERT CROSS]

Originally Posted by neil.ervin

Where does the hose connect in? At your tank? Or after the switch-over regulator?

They only needed to know what length supply hose I wanted. I got the

longest available. I usually run my 2000 Honda in a two man tent to keep it

out of the weather (and out of sight), the longer the supply line the the

further the tank.

I use two quick dis-connects, one at the tank regulator and the other at

the low pressure regulator.

As for the size of the line going to the carb, I use surgical tubing, very

flexible and easy to route inside the generator. Just a quick pinch and it

shuts down the unit instantly. Plus it seals well over the barb fittings they supply with the carb and its easy to remove.

One feature I wasn't crazy about was the size of the low pressure regulator

that supplies the carb. No room to conceal it inside the unit. I mounted it

on the outside of the removable service panel. I remove the regulator and install a spare panel

for transport and storage, and carry all hoses etc. in a separate bag.

If it wasn't pouring rain today I'd take some pics to post so

you could get an idea of how it goes together. Maybe later.

Consider getting a combination tach/hour meter. It will help you tune the carb and can be used

for service intervals. Once you've got an idea of how long you can run on a tank you can

anticipate your next refill. Both Honda and Yamaha offer them.

Hope this helps.



Are you using the petrol/propane conversion??

Bob

[neil.ervin]

I use two quick dis-connects, one at the tank regulator and the other at

the low pressure regulator.


Tank regulator = exit of tank ???
or at the trailer side of the double tank switch-over control?

Where is the low pressure regulator? On the yamaha generator?

Thanks,

[ROBERT CROSS]

Originally Posted by neil.ervin

I use two quick dis-connects, one at the tank regulator and the other at

the low pressure regulator.


Tank regulator = exit of tank ???
or at the trailer side of the double tank switch-over control?

Where is the low pressure regulator? On the yamaha generator?

Thanks,

Neil
Don't really know if the sequence of these might be a little confusing.

The first shows the 11lb tank and supply hose, Iv'e found that it is important to keep the supply hose as straight and flat as possiple.

Seems that if the quick disconnects get twisted or not straight they will restrict gas supply. I don't use the A/S tanks at all.



Second shows the 11lb tank and high pressure regulator with the quick disconnect attached.


Third shows the low pressure regulator mounted to the service panel of the Honda with the quick disconnect attached on the inlet side.

The Black screw with lock nut you see on top left is the mixture adjustment. The green surgical tubing is what I use for the shut off valve.

The foam ring behind the regulator is to protect the primer button.

Forth Pinching the tube to shut it down>

[neil.ervin]

Nice pictures. Thanks.......

[neil.ervin]

Has anyone connected a propane generator to their airstream trailer propane tanks?

I took a picture today of my double tank setup, but the picture did not take. Bummer.

My two tanks feed into a switchover valve and then into a regulator, and then on to the trailer. That trailer side of the regulator is located about mid tank high and almost between the tanks (2005 Safari). It doesn't appear there is enough space in there to place a tee (and a quick disconnect) to feed the 12 foot hose to the propane generator (Yamaha 1000).

I really need your help.

Please???
Thanks,

[lewster]

HI Neil,

I use my LP-Yamaha 1000 directly from my CCD'a LP tanks. You will need an additional access 'T' like a Camco model 59133, or the 'T' and 12' hose model 59143. I use the latter and it works fine for either the genny or my gas grill.

[neil.ervin]

Robert Cross......

In your pictures, it looke to me like you have a regulator at your stand alone tank and also one at the generator. Are both needed?

Thanks,

[neil.ervin]

Originally Posted by lewster

HI Neil,

I use my LP-Yamaha 1000 directly from my CCD'a LP tanks. You will need an additional access 'T' like a Camco model 59133, or the 'T' and 12' hose model 59143. I use the latter and it works fine for either the genny or my gas grill.

Lewster, You say you attach your hose directly to the tank with the Camco 59133 tee. Do you have a high pressure regulator at the tank as shown in Robert Cross' pictures?

Thanks,

[ROBERT CROSS]

Originally Posted by neil.ervin

Robert Cross......

In your pictures, it looks to me like you have a regulator at your stand alone tank and also one at the generator. Are both needed?

Thanks,

Neil

The one you see on the LP tank is the same you have on your trailer tanks,

the one at the generator is a low pressure demand regulator, the more

vacuum applied from the carb venturi the more the more gas delivered.

Bob

[neil.ervin]

Robert Cross

So then there MUST be a high pressure regulator in the line. In addition to the generator attached low pressure regulator.

Cannot feed directly from tank to the generator's low pressure regulator?

Correct?

[Wayne&Sam]

Yes, you want to take pressure regulated gas from the tanks to the generator. The generator's regulator won't have to do any work. But the same hose can then be used on something else- say a BBQ that doesn't have a regulator on it.

[lewster]

Originally Posted by neil.ervin

Lewster, You say you attach your hose directly to the tank with the Camco 59133 tee. Do you have a high pressure regulator at the tank as shown in Robert Cross' pictures?

Thanks,

Yes!

The Garretson demand regulator will blow out if you apply more than 11" water guage LP pressure to it. Thus, you need a high pressure regulator (preferably a 2 stage one) that must be in the supply hose to the pancake Garretson at the genny.

[neil.ervin]

Ah, finally, clarification. Thanks to all.

Tank to high pressure regulator
to hose
to generator regulator into the generator.


Although the high pressure regulator could be at either end of the hose.......

I do wish that US Carb would put this documentation on their website.

[neil.ervin]

Well, I received all my parts back from US Carb today. Fortunately I did have them mount the engine regulator on a spare generator door and it includes a tachometer. There are a lot more pieces than I expected, but I think they sent me ALL the pieces I'll need. The pieces look exactly like in Robert Cross' pictures.

Unfortunately US Carb tech folks don't respond to email or phone questions, so I must ask for help from you folks.

But I do have a few extra questions.
1. booklet says that brand new generator must be run on half load for 90 minutes using GASOLINE, before starting to use propane for the first time.
2. Even when using propane for fuel, the gasoline tank must be at least 25% full with gasoline.
3. There are guidelines for initial adjustment of the regulator load block. I'm worried about resetting the start point since the instructions say 'below 9hp generator'. This is a very small 1000 generator.
4. I have not yet located the propane primer.

Anyone familiar with these restrictions?
Thanks,

[ROBERT CROSS]

Originally Posted by neil.ervin

Well, I received all my parts back from US Carb today. Fortunately I did have them mount the engine regulator on a spare generator door and it includes a tachometer. There are a lot more pieces than I expected, but I think they sent me ALL the pieces I'll need. The pieces look exactly like in Robert Cross' pictures.

Unfortunately US Carb tech folks don't respond to email or phone questions, so I must ask for help from you folks.

But I do have a few extra questions.
1. booklet says that brand new generator must be run on half load for 90 minutes using GASOLINE, before starting to use propane for the first time.
2. Even when using propane for fuel, the gasoline tank must be at least 25% full with gasoline.
3. There are guidelines for initial adjustment of the regulator load block. I'm worried about resetting the start point since the instructions say 'below 9hp generator'. This is a very small 1000 generator.
4. I have not yet located the propane primer.

Anyone familiar with these restrictions?
Thanks,

Neal

If your generator is new it is required that you break it in on petrol.

As far as keeping the tank 25% full, what I plan to do is use a small amount

of fuel stabilizer and run the Gen Periododically just to be sure that if you

ever need to run on gas everything will be working properly.
STA-BIL
If your Yamaha has a good sealing cap you shouldn't have to worry about

fumes or leaks. You must to remember to put a fuel shut-off on the gas

supply line to the carb to prevent a vacuum leak into the carb

vunturi.

I think what they recommended on the load block was 2 1/2 turns out from

fully closed. Not even close, you can see in the photo how far out it's turned. Just adjust mixture with the tach to best idle,

then check again under max load. (used my co-pilots hair dryer on high,

1500 watts, low setting was 800w which would be good for your 1000)

Just don't get it dirty like I did, now I've got a Generator test instrument

for the tool bag

Your primer button is located on the back side of the regulator, I've got a

foam R/C car tire insert around mine to help keep the dirt out.

You can see it in this photo. Just slide a finger under it, give the button

a couple quick pushes and your good to go, Keeps others from pushing it

by mistake too.

[neil.ervin]

Robert.

Thanks for your guidance. One difference between Honda and Yamaha 1000 generators is that the Yamaha has a build-in gasoline shutoff valve.

[neil.ervin]

Robert, What is this?

now I've got a Generator test instrument for the tool bag