Mystery’s Over: When to Use the Decompression Button in ECHO’s Chainsaws

July 20, 2022

In this video

  • Quick interview with ECHO’s Chainsaw Product Manager

  • When is the right time to use the decompression button in ECHO’s chainsaws

  • How to use this system correctly

Visiting ECHO’s Headquarters in Lake Zurich this year has been a blast for me because I had the opportunity to talk to ECHO’s product managers about their tools and the best way to use them. I had doubts about one product in particular, so I was eager to talk to an expert about it: ECHO’s chainsaws.

Jerry Morgan, ECHO Product Manager for chainsaws, kindly explained to me when is the right time to use the decompression button in the larger models of this tool and how to do it properly.

Watch the full video to see Jerry’s advice, and don’t forget to share this article with other fellow pros who might find this helpful.

Video Transcript

What’s up everybody, Tino with AJ’s Lawn Care here, and we are on location at the ECHO headquarters in Chicago. Yes, it’s freezing up here and it’s 90 degrees at home!

And I’m here with Mr. Jerry Morgan — he’s a Project Manager with ECHO for chainsaws — and I’ve always had a question. I’ve asked a lot of people and I’ve gotten so many different answers. But there’s a button on the bigger saws for decompression, and we’re going to find out right now exactly when to use it and what it actually does.

Jerry:

Sure, great question. So the decompression valve — what that does is release pressure that’s built up in the cylinder if you go to start it.

So as a cold starting procedure, what you want to do every time is:

  • Make sure your choke is all the way open
  • Press your decompression valve
  • Make sure your switch is on
  • Then, if it’s a cold start, five — maybe six — pulls on the saw with the decompression valve. You’re going to hear a false start, like it wants to [start]. At that point, then you take your choke off, press your decompression valve again, and it should start right away.

Tino:

So it’s only when starting, like cold starts?

Jerry:

Yeah, warm starts — you shouldn’t need it. It’s basically for cold start. And what it does, it releases that pressure build-up inside the cylinder. If you build that pressure right now without pressing that [valve], this would be really hard to pull — it’s like, it won’t release on the recoil.

You press the decompression valve to let that pressure go, and it'll pull right away and be nice and easy to pull.

Tino:

So if you’ve ever fired up a saw and it’s a cold start, and you notice that it’s just really fighting you to even pull the recoil starter out — it’s the decompression valve. That’ll release the pressure. You should be good to go.

Boom! Well there it is, y’all. Now you know what that button’s for. Now I know exactly what it’s for and when to use it. So thank you, sir!

You know we’re going to keep moving on down the line and see what else we can try out here.

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Teno Cardoso

Teno Cardoso
AJ’s Lawn Care