David Fyffe
Site Supporter
I have one of those-------somewhere
Look on ebay and FB - places where old tools are sold. You might find one used.I remember those. Wonder if it can still be had?
Will it work on a single? I thought you used to put it in one cylinder and the start the bike on the other one.Now since I’ve acquired an old school ride again, with tubes in the tire, and a small, special battery, about the size of a deck of cards, with no way to attach either a battery tender, or air compressor, I thought about carrying CO2 air, but the decided to look into my vintage, never been opened boxes, and low and behold look what I found!
Wonder how many old timers here remember these?
They come with 10,12,14mm adapters.Look on ebay and FB - places where old tools are sold. You might find one used.
Did those old kits have metric adapters that will work in today's spark plug holes?
I have a new unused one out in the big box of parts in the shed. They should not be used on fuel injected engines. In the old days before fuel was injected the breather part of the pump let air pass much easier than the carb would so mostly gas free air was sucked into the chamber and pumped out into the tire.
The pumps worked fast because each stroke on a 250 single was 250cc's of air. That's a good sized compressor stroke.
I guess if you could stop the injectors from spraying fuel (pull the pump fuse?) you could still use one of these on a new style bike but a small compressor would be easier.
Not fuel!yeah, but what did it TASTE like????
Except Obo's post is deceptive in how it works. The cylinder contents are indeed pumped into the tires. As Igofar posted if he shuts the fuel off then all is good. I was just posting to let folks with bikes like the ST to know it's not going to be great for bikes with fuel injection and no gas shut off valve. I figured Igofar had some way to use this pump safely.In the description posted by OBO in post 5, the contents of the combustion chamber are not pumped in to the tire. If the description is correct, the air doing the compressing and the air being compressed are kept separate from each other, so the presence of fuel in the cylinder shouldn't be an issue.
It certainly seems like it would be impossible to prevent fuel from entering the tire using a fuel injected engine, certainly if it is running.Except Obo's post is deceptive in how it works. The cylinder contents are indeed pumped into the tires. As Igofar posted if he shuts the fuel off then all is good. I was just posting to let folks with bikes like the ST to know it's not going to be great for bikes with fuel injection and no gas shut off valve. I figured Igofar had some way to use this pump safely.
Larry's pic with the instructions says: This engine air pump has it's own intake ports through which cool outside air is drawn into the PUMPING CYLINDER. If you understand the design it's a simple design that works good but it does use the engine cylinder as a pump.
It certainly seems like it would be impossible to prevent fuel from entering the tire using a fuel injected engine, certainly if it is running.
I'll stick with an electric pump, but if you have no alternative having some fuel in tire to get you home and purging it there is better than not getting home.
I stated on a running engine. If you have figured out to run an engine with the fuel and ignition disabled you are more talented than I.If the petcock is turned off, (no flow of fuel) and the ignition is turned off, (no spark to work the fuel injection) How would the fuel be injected into the engine?
If the bike were running, I could understand it, even if the ignition was turned on, then maybe the fuel injection would squirt fuel in there if the throttle was opened etc.
But on a dead/empty cylinder how is this a concern?
Just wondering.
No problem achieving that Larry, I would just connect it directly to my Turbo Encabulator.You don't run the engine.
Your simply using the kick start lever to pump air.
Which is why you have the ignition off, and why no fuel is involved.
If you figure out how to run a single cylinder, kick start only engine with the pump hose attached, sucking air, and get the engine running while you use the pump, then you my friend, are more talented that I.