puch athena AJH 50cc 38mm questions

SEAN BILLINGY /

Mar 17, 2020 02:11PM

Good day guys,

First, a quick intro:

https://www.mopedarmy.com/forums/read.php?1,4352693

I'm starting a new project my goal is to go as fast as possible on a 50cc. Just for fun on the street, not for land speed records or such. I'm not a beginner when it comes to two-stroke engines, but I have been out of the game for 20 years. So I'm hoping you can help me here.

Regarding the cylinder, my eye is being pulled to the puch athena AJH 50cc 38mm. Has anyone used this one? After a search on the forum, I only see experiences with the 45mm version.

In addition, I'm trying to find technical info on the Homoet 4p and 6p pipes to figure out which would be best for this high revving 50cc. Can anyone point me in the right direction?

Thanks!

Re: puch athena AJH 50cc 38mm questions

Daniel '' /

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deesal

Mar 17, 2020 02:29PM

Ajh is great, with a riser it can take 8 petal reeds. It isn’t bad out of the box and pretty much any pipe rips on this kit. I ran a simo, estoril, Cali and proma on it and was pretty much what you would expect from each. The Cali was the best all around pipe for me, but if you live in the flat lands I would say get a simo or 6p

Re: puch athena AJH 50cc 38mm questions

SEAN BILLINGY /

billdesman OP

Mar 17, 2020 03:28PM

Thanks for your reply. Just to verify, you had the 50cc version?

Regarding the pipes, what would you say is the main difference between the 6p and the simo?

Re: puch athena AJH 50cc 38mm questions

Adam Smith /

banzi

Mar 27, 2020 05:33PM

are you going to port it ?

with the 50cc AJH you could add a third transfer as the cylinder skirt is super thick!

Re: puch athena AJH 50cc 38mm questions

SEAN BILLINGY /

billdesman OP

Mar 30, 2020 12:48PM

> Adam Smith Wrote:

> -------------------------------------------------------

> are you going to port it ?

>

> with the 50cc AJH you could add a third transfer as the cylinder skirt

> t is super thick!

That's good to know. When I still had my former puch, I was living near an uncle who had all these nice tools and skills to be able turn my visions in to reality. Now that he's 5000 miles away, that's not an option anymore. Depending on how far I take this, I might start going in that direction, but for now the plan it to keep it stock.

Re: puch athena AJH 50cc 38mm questions

Daniel '' /

Go to branch

deesal

Mar 30, 2020 02:55PM

You don’t really need the third transfer as the kit is already power ported, meaning the intake is open and acts as boost at bdc

Re: puch athena AJH 50cc 38mm questions

SEAN BILLINGY /

billdesman OP

Mar 30, 2020 05:46PM

> Daniel '' Wrote:

> -------------------------------------------------------

> You don’t really need the third transfer as the kit is already power

> ported, meaning the intake is open and acts as boost at bdc

Good to know. Thanks!

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