2 Stroke Oil Mix at the Gas Pump

Discussion in 'Spare Parts, Tools & Product Developement' started by DuctTapedGoat, Jan 11, 2011.

  1. DuctTapedGoat

    DuctTapedGoat Active Member

    I think it's a good idea, all that's not in the pic is velcro strips to secure it to the frame. It's a sucky picture, but it's the basic idea of it.


    Simple enough to operate - just depress the syringe while you're pumping your gas into your tank.

    Ideas, comments, suggestions?

  2. spad4me

    spad4me Member

    I buy cheap spices at wall mart they come in a small re-sealable plastic bottle.
    They hold enough oil for two tankfulls I have them marked at the proper level for one tankful .
    Use them then toss them.
    No big deal if someone steals them.
  3. CJ5

    CJ5 New Member

    I am guessing that you are wanting to make something that attaches to the gas nose, so while you are pumping, you are mixing at the same time sounds like a really great idea. Like an attachment so you don't have to buy it then mix it, although I thought you were supposed to mix it, then pour it, or does it matter. You would need an efficient way to close off both ends of the tube when not in use, cause of the run off.
  4. DuctTapedGoat

    DuctTapedGoat Active Member

    Well, at the rate gas flows from the pump, if the oil was injected into the stream it should be enough between just the fast flow through the tube and hitting the inside of the tank to where you wouldn't need to carry a gas tank. Granted the picture it looks huge, but when making it I'd make it as small as possible without losing the functionality.

    Good call about capping it off. Something styled like those water bottles with straws caps would be enough.
  5. CJ5

    CJ5 New Member

    For the tube I was thinking PVC, and the syringe you might could get at a prescription place. You might could get a piece of PVC with Threads on each ends plus stops the would fit. And with the threads being on the outside of the pipe it wouldn't interfear with the gas pump nose. The reason I say PVC ends is because wouldn't Plastic bottle caps break easy or break down over time.
  6. give me vtec

    give me vtec Active Member

    not sure... but something like this may be illegal in some states, maybe all.

    If you do end up using something like this... be very aware of the vapors coming out of both ends... highly combustible by simple things like static electricity.

    I like the idea about the wal mart spice bottles.
  7. DuctTapedGoat

    DuctTapedGoat Active Member

    SBP sells a MixMizer, which is the syringe already ratioed out, so that parts easy.

    All of those laws relate to storage, not delivery.

    That would be something to think about when choosing what material to use for a delivery tube.

    If it seemed to pose a major risk, I could laminate the delivery tube with static bags. Even, I could run a wire hoop through the delivery tube and have an alligator clip to clip onto the frame to ground it.
  8. professor

    professor Active Member

    You have proposed a mixing devise with a variable potential of mixture. To me, a bad idea. You are better off with known quanities.
  9. Hammond Egger

    Hammond Egger Member

    Turkey baster, irrigation drippers and vinyl tubing
  10. DuctTapedGoat

    DuctTapedGoat Active Member

    Well, it would be a known quantity. There is a ticker on the pump showing more exact amounts than your average daily gas can, and if used in conjunction with a syringe that is already got ratio increments listed, I really don't see how it's an "unknown quantity".

    LOL, my girlfriend would kill me if I put two stroke in her turkey baster. ;)
  11. CJ5

    CJ5 New Member

    I just realized what we are making is a 3 hand operation device. One on the device, One on the pump, and one on the syringe. We need a effective way to attach the end of the pump to the Device. It wouldn't need to seal exactly, just hold on so one hand holds the pump and the device at the same time. I was thinking rubber tubing on the end with a pipe clamp that has a nob tightner as apposed to screw driver or wrench. Or something kin to the a quik release, like on some bike seats.
  12. DuctTapedGoat

    DuctTapedGoat Active Member

    I already thought of it. Where the gas nozzle comes into the delivery tube it's tapered, not like a funnel, but so you can snug it up and not need a third hand..

    But, you've got a great idea - and I know just the fitting to do it.

    Rubber hosing and a springed hose clamp. The spring stays on the hose, and locks down on the nozzle when you need it tight.

    Now, there is another thing I was thinking about incorporating into the original sketch. Towards the tip of the delivery tube, just have a hook to hold it onto the lip of the gas tank. I decided against it because with a traditional kickstand it would be too at risk of tipping the bike.
  13. CJ5

    CJ5 New Member

    The only problem with the rubber fitting being used to attach the gas nose to the device is how do you have that and maintain a way to seal it on that end. And if that is the case could you buy a very large spring to loop around the device and the gas pump end at the same time, or am I over thinking this?

    Also if you go with a hook on the end of the device to hook it on the gas tank, provided the bike can stand on its own, wouldn't that Ground it out?

    Could you give me a link to where you get one of those Mix syringes?

    How would you accurately calculate how long to make that Mixing Pipe?
  14. DuctTapedGoat

    DuctTapedGoat Active Member

    The mix syringes are here. http://www.sickbikeparts.com/catalog/product_info.php?products_id=77

    A hook alone wouldn't ground it out if the delivery tube were plastic, as plastic isn't conductive. It would have to have metal going down the length of the delivery tube, or be made of metal. As well, your gas tank isn't grounded, unless you shaved the paint off the brackets.

    There really doesn't need to be any exact calculations for the delivery tube - as long as the oil and gas come in direct contact with each other for even just a few inches, that will do most of the mixing. Any additional mixing will come when it enters the gas tank, hitting the bottom of the tank and any gas already in the tank. I was thinking about 12-18 inches for total length though.
  15. happycheapskate

    happycheapskate Active Member

    I think it's neat that you have an eccentric mind. Maybe you will discover something new.

    I think your device is complicated though, and messy. Like any funnel, after use, it must be cleaned thoroughly or capped, or it will drip/leak onto something.

    I fill my 1/2 gallon tank at the house, and carry one of these for a spare:

    (not ryobi or synthetic, but similar tiny bottle)

    You can find lots of small bottles such as Monster Energy Shooters or something from the cosmetics dept at walmart (empty travel containers), which you could use to hold "individual servings" of oil for small amounts like 1/4 Gallon or 1 Litre.

    Also, you can mark a small Gatorade (wide mouth) bottle for the amount of oil to 1 gallon or 1/2 gallon, etc, and just carry it in your luggage bag. Remember to squeeze the bottle some before capping, for heat expansion.

    If you mix oil and gas in your fuel tank, instead of a separate container, make sure it is mixed well before firing the bike, or you could foul your filter or spark plug.
  16. DuctTapedGoat

    DuctTapedGoat Active Member

    That's what caused me to think of an alternative to the mix can. These tanks just aren't designed for intank mixing - the oil will undoubtedly go straight into the line for the amount of oil it takes per tank. It's tough to pour at the same time as pumping, getting it in the stream of fuel. I initially was flirting with the idea of using the same concept as a miracle grow adapter on a garden hose, but there was no guaranteed way of getting the same amount of oil every fueling, and it'd be for a much higher volume of mixed fuel for it to work. That's when I took the miracle grow concept and just essentially reversed it, and then you have what we have right here in this thread.

    I've actually been thinking since getting all the suggestions from everyone here, that really it wouldn't even take such a large a device as I first thought up. The fuel delivery tube would really only have to be more of a "tip" to the nozzle, and as such, it would only be as big as the syringe, possibly even smaller. This is something I'm going to HAVE to make, I'm placing the order today from SBP for the syringe, and I'll hit up the local store for some rubber tubing when it comes in. Going to have to go to the fuel station to get exact measurements.

    My shopping list looks like this.

    *MixMizer Syringe
    *1' Rubber Hose (diameter unknown)
    *1' Fuel Line
    *x2 Large Threaded Hose Clamps
    *x1 Springed Hose Clamp

    I plan to get extra hose and actually build this right at the fuel station so I can go to an unused pump whenever I need to see how it lines up.
    Last edited: Jan 14, 2011
  17. DuctTapedGoat

    DuctTapedGoat Active Member

    Alright, ordered my MixMizer - looking forward to taking this concept to the next level!
  18. happycheapskate

    happycheapskate Active Member

  19. happycheapskate

    happycheapskate Active Member

    Check your local laws, but if you want something that doesn't stand out as a fuel tank to be stolen, this should work well (store with spout up in case the spout fails)


    The SUn brand detergent works well in the laundry, and the large square container works well. I plan to use one for my mower gas.

    If you are concerned about heat and venting, drill a hole in the flat cap, and insert a auto tire valve, inverted. excess pressure will open the valve and bleed off overpressure, then reseat.
  20. DuctTapedGoat

    DuctTapedGoat Active Member

    I like the inverted tire valve idea and it's filed away for a future project, but keep in mind that the purpose of this project isn't how to carry a large amount, but to only have to carry oil and fuel at a pump, so as to not need to carry a full gallon or mixing can.