Decompression valve spark-plug adapter for chainsaws?

[Gushh]

Looking up this idea I had I found this thing: FRD EZ-D-Compression System
Ridiculously expensive, but it is what I had in mind... so turns out - as with any idea I've had- it already exists, kinda.

I'm thinking though, anyone with a lathe and milling machine could possibly come up with these devices on a fraction of the cost, but perhaps they exist already in affordable prices? any links?

The idea is that you could add a decompression valve to any chainsaw without having to replace or modify the cylinder (which requires tools not everyone has)

I'm also willing to bet a lot of people would love these things.

A couple issues: requiring longer sparkplugs, and the clearance for the adapter on certain chainsaws (might need to modify covers?) -- the sparkplug needs to be drilled on the side.

Thoughts?
:msp_sad:

 

[Gushh]

Forgot to add, the part on that link is clearly cast, but who says the design has to be as complicated? -- Casting a piece like that is no simple feat, due to the cavity (you either machine it out later or you use a removable core)

 

[MPE]

Can't see why you'd spend money to add a decomp. Most saws that benefit from one already have one. Just sayin'.

 

[50blues]

Thats for all the 200psi wild things.

 

[Gushh]

What's this dienmayabc clown saying? I think he's a spam bot!

A lot of saws without a decomp valve could benefit from one... a lot. :msp_thumbsup:

 

[imagineero]

Not so many in my opinion. It's a product for a market that doesn't really exist. Lots of guys don't even use the decomp on saws that have them. Man up, or buy a saw with decomp. Modern saws also have better filtration, antivibe, and less fumes.

Shaun

 

[Gushh]

And yet there are guys who will wait years to come across certain kits for their vintage saws? doesn't add up.
You'd think there isn't a market for saw decals and yet there is... Just saying. Some things you don't know you want them until you see them or someone else got 'em.

 

[Rokon]

I'm thinking the other direction: A bolt that threads in place of a cylinder with an existing decomp valve. That way we can extract every possible ounce of compression, while eliminating one more possible air leak spot. :fart:

 

[bucknfeller]

I'm thinking the other direction: A bolt that threads in place of a cylinder with an existing decomp valve. That way we can extract every possible ounce of compression, while eliminating one more possible air leak spot. :fart:

Baileys sells a decomp plug if that's what you're talking about. A short bolt will work but the threads are M10x1.25 extra fine, and they are a PITA to find. I'm not to keen on the looks of this thing, but I'd be interested in something of the sort for my 281. 81cc at 185psi., she's a real bear when it's cold.