Frank Brankin

Hi, Thanks for the comment. Larger saws will have the bleed button that you describe - these buttons (or valves) are designed to make the cord easier to pull and automatically close when the engine fires. I can safely say that if the button is not pressed, it would not damage the puller unit. I don't believe forgetting to push the button would damage the saw as the valve automatically closes when the engine fires. I guess if the cord is old or frayed, then if the button is not closed the cord may break when the engine is being started.  

I posted a video of my drill powered pull starter a while back. I had a quite a few people contacting me directly looking to purchase a unit, so I have developed it and now have a few units for sale.
You can see it in action at    or go directly to https://www.pullstarters.com
All comments most welcome.

Hi,
Having quite a few small engine tools, I found I was nervous starting them after heart surgery for an aortic aneurysm repair so I built a tool to start them.
To have a look at the unit (it works very very well) simply go to the link below :

https://www.youtube.com/watch?v=ox0HLn0B7dY

If you’re interested , I’m raffling a unit with funds going to the World Heart Federation.
All comments welcome on the unit.