Chinese Zenoah 52 cc ported & piped

[GD350TURBO]

Hello Everybody.
Recently, i have received a Zenoah chinese saw, 52 cc, that for cleaning my garden and make some firewood it 's ok.
But, im interested to gave some extra power, and make some modification:
4 mm raised discharge port, and 2 mm lowered intake port, that give a little more power.
Now im interested to piped them !
There is some advice to make them ?

( sorry for my bad english, im italian )

 

[Czed]

Hello Everybody.
Recently, i have received a Zenoah chinese saw, 52 cc, that for cleaning my garden and make some firewood it 's ok.
But, im interested to gave some extra power, and make some modification:
4 mm raised discharge port, and 2 mm lowered intake port, that give a little more power.
Now im interested to piped them !
There is some advice to make them ?

( sorry for my bad english, im italian )

Welcome to the site
I opened up a 58cc zenoah clone
Just simply widened the exhaust and intake some.
It ran good.
It's been cutting firewood for a year now.
My friend's only saw.
Good cheap light saw's
Mine was hard on the clutch after i modded it though lol

 

[GD350TURBO]

Welcome to the site
I opened up a 58cc zenoah clone
Just simply widened the exhaust and intake some.
It ran good.
It's been cutting firewood for a year now.
My friend's only saw.
Good cheap light saw's
Mine was hard on the clutch after i modded it though lol

I agree with you...
Is a low cost but onest chainsaw, i find better this ones, instead a chainsaw from local hardware store, that cost more.

I see some video of piped chainsaw on youtube, and the curiosity to try on my chainsaw is high !

 

[Dub11]

@Fruecrue just made a good looking pipe. He might know the formula for making one.

 

[Fruecrue]

Read the two stroke tuners handbook by Gordon Jennings.
The principles and mathematical equations are all there and worked well for me.
I chose a design that would give me a wider power band and I kept engine rpm to a reasonable 11k. Chain speed can always be gained with a larger drive sprocket.

 

[Leafy]

I have the 62cc version (supposedly 62cc it has a 45mm bore) of this saw. I wouldn't go crazy with power on the thing the clutch is pretty weak, at least on mine. I think before you pipe it you'd want to upgrade from the tiny 13mm venturi carb to something more appropriate. I have a ZAMA knock off carb for a husky 365 on the way that should be pretty close to bolting in, only needing to drill a hole for the throttle link and maybe run longer mounting bolts for the carb.

 

[1Pitbullman]

Video!

 

[Leafy]

Video!

 

[Wagnerwerks]

That's a lot of sawdust.

 

[1Pitbullman]

She Runs Very Good! Well Done, Sir!

 

[smokey7]

@Leafy that little saw runs pretty dang good. What have you done to it?

 

[Czed]

Good runner you built.
I like those the one i had is still
The guy's i sold it to
only saw.
Light saw's too

 

[Leafy]

@Leafy that little saw runs pretty dang good. What have you done to it?

http://opeforum.com/threads/what-did-i-buy-china-saw-content-warning.12787/