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5-7HEAVEN
Guest
rc, yes I know that premix is the most effective way of having the best mixture.
I realize that my method is not as effective. However, as mentioned before, a large Japanese scooter manufacturer supplied a small cup under the gas cap. This was for the rider to mix the oil/fuel at fillup time. Granted, this was back in the 60's, and I'm sure that same manufacturer now has a better way of mixing the o/f.
It might sound dumb, but I'm willing to take a chance with the questionable way of mixing gas. I live in an apartment walkup. Mixing and keeping gas at home is very messy. Wife doesn't want gas kept around the house.
5-7HEAVEN
Well-Known Member
Well, for the past six and a half months, I've been carrying 2oz oil in my 18oz aluminum fuel bottle in the bike's cage. Now that I switched to Opti-2 oil, I only carry 1oz oil. It's worked VERY well for me. Instead of the three-handed juggling act at the gas pump, I add oil into the tank at home or on the road. THENNN, I pedal the bike to the gas station and fill 3 quarts of gas. While pedalling, the fuel/oil mix changes to about 8:1 ratio, then 100:1 when 3 quarts are pumped in.
Sparkplug color is chocolate-brown, and the engine is not protesting in any way.
It's rainy, windy and I feel weak from yesterday's donation @ the blood bank. With too much time on my hands, I'm back to thinking about a passive way to add oil into my gas tank.
This might be my oil dispenser:
McMaster-Carr
#1169K15 has 1/4" NPT, holds 1.375 oz oil, 1.75" diameter and stands 2.9375" tall. It costs $18.28 plus shipping.
I'm cheap, so I'll use this for my prototype:
http://www.ebay.com/itm/VW-BUG-BUGGY...236970&vxp=mtr
I should have one laying around somewhere. With the filter removed, this filter MIGHT hold an ounce of oil.
Several drawbacks arise from mounting something atop the fuel tank. Unless it's the size of a matchbox, anything mounted on top looks like a huge wart on someone's nose. Add the brass fitting and a petcock, and the contraption looks absolutely ridiculous!
Solution?
Gravity is my friend, and I only need it for a few seconds. All the time after that, and everything sticks up like a skyscraper/building. What I need is a simple pivoting arm.....
like they use on reading lamps!!!
The lamp base gets mounted on either side and slightly below or under the HT fuel tank.
The 1 oz oil and receptacle is lighter than a light bulb, socket and lampshade. Attach the oiler to a length of hose. The hose extends thru a hole in the top of the tank. When the lampshade arm is extended upward so that the oiler is above the tank, 1 oz of Opti-2 flows in.
I don't even need a control valve or petcock. Gravity is my friend. There is no siphon action to contaminate the Opti-2, as long as the hose does not extend below the tank's fuel level. Even if fuel siphoned into the oiler, it really wouldn't matter at all.
There's a vast amount of lampshade choices on the market. I MIGHT have a spare one laying around.
Man, this is gonna be CHEAP! Spare fuel filter and brass fittings, spare lampshade, spare fuel line laying around.....
I'll need a tiny funnel to fill 1oz oil into the filter.
The best part is that I get to SEE the exact amount of oil and watch it flow into the tank!
What fun it is to recycle stuff and make it work on my bike!
Sparkplug color is chocolate-brown, and the engine is not protesting in any way.
It's rainy, windy and I feel weak from yesterday's donation @ the blood bank. With too much time on my hands, I'm back to thinking about a passive way to add oil into my gas tank.
This might be my oil dispenser:
McMaster-Carr
#1169K15 has 1/4" NPT, holds 1.375 oz oil, 1.75" diameter and stands 2.9375" tall. It costs $18.28 plus shipping.
I'm cheap, so I'll use this for my prototype:
http://www.ebay.com/itm/VW-BUG-BUGGY...236970&vxp=mtr
I should have one laying around somewhere. With the filter removed, this filter MIGHT hold an ounce of oil.
Several drawbacks arise from mounting something atop the fuel tank. Unless it's the size of a matchbox, anything mounted on top looks like a huge wart on someone's nose. Add the brass fitting and a petcock, and the contraption looks absolutely ridiculous!
Solution?
Gravity is my friend, and I only need it for a few seconds. All the time after that, and everything sticks up like a skyscraper/building. What I need is a simple pivoting arm.....
like they use on reading lamps!!!
The lamp base gets mounted on either side and slightly below or under the HT fuel tank.
The 1 oz oil and receptacle is lighter than a light bulb, socket and lampshade. Attach the oiler to a length of hose. The hose extends thru a hole in the top of the tank. When the lampshade arm is extended upward so that the oiler is above the tank, 1 oz of Opti-2 flows in.
I don't even need a control valve or petcock. Gravity is my friend. There is no siphon action to contaminate the Opti-2, as long as the hose does not extend below the tank's fuel level. Even if fuel siphoned into the oiler, it really wouldn't matter at all.
There's a vast amount of lampshade choices on the market. I MIGHT have a spare one laying around.
Man, this is gonna be CHEAP! Spare fuel filter and brass fittings, spare lampshade, spare fuel line laying around.....
I'll need a tiny funnel to fill 1oz oil into the filter.
The best part is that I get to SEE the exact amount of oil and watch it flow into the tank!
What fun it is to recycle stuff and make it work on my bike!
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5-7HEAVEN
Well-Known Member
I WAS gonna use the telescopic pole for my inspection magnet. I MIGHT use it for the prototype, then swap to flex tubing if this oil-dispensing project proves to be feasible.
This 12" length of tubing would work well:
http://www.flexible-gooseneck.com/sizechart.html
A 12" length of fuel hose connected to a 90-degree fitting @ the tank might be just the ticket.
This 12" length of tubing would work well:
http://www.flexible-gooseneck.com/sizechart.html
A 12" length of fuel hose connected to a 90-degree fitting @ the tank might be just the ticket.
Barnfresh
Active Member
Good thinking GN keep it simple, use the tubing as the storage container. Something to think about when transferring, storing then mixing 1 ounce of oil is how accurate do you think your final gas/oil ratio is going be? Unless you're rinsing each container with the gas from your fuel tank between each transfer, what percent of your original 1 oz do you figure is left on the walls of your transfer/measuring, funnel and metering containers?
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5-7HEAVEN
Well-Known Member
Funny that you should mention that.
I filled up earlier this week. I ALWAYS look into the empty 18oz reserve bottle and see a bit of oil at the bottom. On Saturday, I had time, so I decided to measure this excess oil. I inverted the bottle above an empty cup, and let it drip out for over an hour. Then I filled a syringe to where it measured 40:1 per quart. When I poured the excess from the reserve bottle, the oil measured 36:1/quart. That's an extra 2.78cc; divided by 3 quarts, that's .926cc less oil for the mix.
Instead of 100:1 fuel/oil ratio, it's @ 103.34:1. I could leave the 18oz bottle's neck in the tank for an hour. That'd lower the ratio to 100.XXX:1.
I COULD pump some gas into the reserve bottle, lowering the oil's viscosity and further lower the fuel/oil ratio to 100.00X:1. I could also put a leetle more oil into the container to guarantee 100:1 ratio or less.
I KNOW I'm not gonna pump gas into the container. I MIGHT leave the container in the upright position for an hour or so. I MIGHT put a little more oil in the mix. ORRRRRR, I might do nothing about it. JMO, a 3% decrease in oil mix is inconsequential.
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5-7HEAVEN
Well-Known Member
EXCELLENT idea! Then all I'd need is a 90-degree fitting and a length of hose w/control valves on both ends. And a tiny funnel.
So I carefully pour 1 oz of oil into a length of tubing. Then I add a few inches to that length, so the oil level is below the fitting. After shutting both valves, the tubing is either coiled up or laid out along the bike's frame.
By simple math, I should be able to figure out the volume in any tubing's length and inside diameter. Then I'll know what size hose to use. If the flexible tubing can be fitted with control valves on both ends, I might use that "desklamp shade tubing".
Update: Okay, 16" of 3/8" ID hose would hold more than 1 oz of oil. With 7/16" ID hose, 12" would be needed. Or 9" of 1/2" hose would hold the oil. That's enough hose to simply tuck under the HT fuel tank.
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5-7HEAVEN
Well-Known Member
Ok, the parts are on the way.
Simple math says that 1 oz of fluid will fill 4" of a 3/4" hose. The hose used will be clear for visibility. A 1/2" hole will be drilled atop the 4-liter tank and a 90-degree 1/2" fitting installed. 1/2" X 3/4" barb fittings press onto a 6" clear fuel line. A 1/2" brass valve on each end of the hose keeps the oil in the line. A 1/2" allen plug with a tiny hole drilled thru it screws into the end valve. Oil is poured in when the plug is removed and the end valve is opened. Then the end valve is closed and the plug reinstalled. When it's time for the oil in the line to enter the fuel tank, both valves are opened. The 1 oz of oil will quickly flow out of the clear fuel line and into the fuel tank. Oil will transfer within seconds, then both valves will be closed.
It SHOULD work, as long as both valves are above the 90-degree fitting.
Simple math says that 1 oz of fluid will fill 4" of a 3/4" hose. The hose used will be clear for visibility. A 1/2" hole will be drilled atop the 4-liter tank and a 90-degree 1/2" fitting installed. 1/2" X 3/4" barb fittings press onto a 6" clear fuel line. A 1/2" brass valve on each end of the hose keeps the oil in the line. A 1/2" allen plug with a tiny hole drilled thru it screws into the end valve. Oil is poured in when the plug is removed and the end valve is opened. Then the end valve is closed and the plug reinstalled. When it's time for the oil in the line to enter the fuel tank, both valves are opened. The 1 oz of oil will quickly flow out of the clear fuel line and into the fuel tank. Oil will transfer within seconds, then both valves will be closed.
It SHOULD work, as long as both valves are above the 90-degree fitting.
5-7HEAVEN
Well-Known Member
I just got an epiphany!
The fitting enters the tank towards the its bottom. When both valves are opened, then gas will fill the clear line up to the tank's level (The line is vented by the hole in the top valve's brass plug).
In other words, this clear fuel line will also be a fuel gauge!
The fitting enters the tank towards the its bottom. When both valves are opened, then gas will fill the clear line up to the tank's level (The line is vented by the hole in the top valve's brass plug).
In other words, this clear fuel line will also be a fuel gauge!
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