if your running an older Auto... carberated....

[Bob]

I did some changes on the drawing.
it now has only 2 valves, and no cap on the gas tank/vaporizer... I figure I can simply pour the gas down the air breather pipe to put gas in the tank... I'll need a funnel for that but for a beer can or 2 of gas the thing should run a long time!
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I have all the parts lined up now and I'll try to weld it up tomorrow
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Bob...

[Bob]

OK I welded the thing up today...
I haven't tested it for leaks yet but I don't expect to find any it welded very nicely on the bottom !  LOL
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I made it just like the drawing above but I turned the 3 way "T" upside down... this allowed me to connect to the top edge of the fuel tank and put the fuel air ratio valve out to the side where its easier to get to , rather than under the hot exhaust pipe!
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I have the unit assembled and on the kitchen table at the moment... its ready to go tomorrow when the RTV Silicone is good and Dry... where I sealed the intake from the valve that goes to the top edge of the fuel tank...
 I had to do it this way so I could get it apart in 2 pieces ! ... first the exhaust and fuel tank combonation get put on the motor....  this screws in to the exhaust port on the engine, so nothing can be in the way of the big tank turning...
 once its threaded in I locked the threaded pipe with a lock nut on the threaded pipe of the exhaust pipe, and its there to stay.
next I mounted the intake manifold and throttle valve unit... I had to modify it slightly before welding the thing up because it needed to bend outward a bit to clear the gas tank
...after making a gasket for the intake manifold and applying the RTV silicone to it as well all I had left to do was seal up the elbow that points to the hole in the top edge of the gas-tank.... I simply gooped it on till it looked good and sealed all the way around it.
...its still drying...
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another slight modification I did was on the air intake pipe of the gas tank was to cut small notches about 1/8" deep in the end of the pipe all the way around it... this is so at idle and the air flow is low it will bubble out all the way around the pipe  and in theory give a better vaporization of the gas in the tank.
the pipe is welded 1/2" off the bottom of the container and  because the pipe is on the Side of the container on the top I bent the pipe slightly to be almost centered on the bottom.
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I hope to take a picture of it Running tomorrow for you ! LOL
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Bob....
 

[Bob]

I made another board...
 for fuel vaporizers...
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Just so you know!
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Bob....

[Bob]

for any of you that care...
I posted the results of this experiment on the Fuel vaporization section under B&S 3.5hp Vaporizer...
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 Yes it does indeed work ! I ran a beer can full of gas through it this afternoon !
Weeee ~!

http://www.hydroxyhut.com/index.php/topic,753.0.html
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Bob...