Puch sleeper build

Stefan Josheski /

don't think that anyone in here would be interested in my build but still wanted to make a thread about it. Here it is, 75 rog pony express, basically bone stock now. Should be a torque monster in the end, we'll see though.

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Re: Puch sleeper build

Jimmy Cincinnati /

I like it, what is that frame?

Re: Puch sleeper build

> Stefan Josheski Wrote:

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

> don't think that anyone in here would be interested in my build but

> still wanted to make a thread about it. Here it is, 75 rog pony express,

> basically bone stock now. Should be a torque monster in the end, we'll

> see though.

Rubbish, I'm interested, love a good sleeper!!

Re: Puch sleeper build

Love it!...Looks like ass...Don't change a thing except of course the horsepower...Have fun!!!! Wooot!

Re: Puch sleeper build

Stefan Josheski /

Later model Pony express by rog (early models were fully rigid), but the top tube has been added to it for some reason

Here's how it should look with the stock bars and without the top tube and the stock seat instead of that ugly tomos one which fits the theme: (edited)

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Re: Puch sleeper build

Stefan Josheski /

Friend of mine gave me his gopro to film this machine, had some fun and did some wheelies (no rear brake btw). Enjoy

Re: Puch sleeper build

Johnny Braaapp /

This dude is awesome! (edited)

Re: Puch sleeper build

Fun video, not so fun title. (edited)

Re: Puch sleeper build

Stefan Josheski /

Haha thanks man!

Re: Puch sleeper build

Stefan Josheski /

thoughts on this? Can't find polinis in stock anywhere, and that exhaust bridge do be sexy

the rebuild kit dos offers good or no?

Also, I'm aware of the issue with piston at bdc, and I saw some comments on this piston that it fixed it:

https://www.treatland.tv/TEFLON-coated-45mm-replacement-PISTON-for-TOMOS-al-p/teflon-45mm-especiale-piston.htm

and I would need a "countersunk head" for the squish, what does countersunk mean? Also, wouldn't I be good with sanding the stock head down and if needed not use a head gasket?

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Re: Puch sleeper build

Stefan Josheski /

Put a 1/4 turn throttle from the ali, finally can get to wot and idle properly lol

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Re: Puch sleeper build

The piston doesn't go all the way to the top of the cylinder so the counter sunk head is cut so the head sits down in the cylinder a little to bump compression back up. If you're building a torque monster you'll need one. I've ran and actually love that particular kit once dialed in.

Re: Puch sleeper build

Stefan Josheski /

Thanks for the info, what were all the parts you ran with the kit?

Re: Puch sleeper build

Stefan Josheski /

Time for rebuild I guess, rod knocks side to side but idk how to attach videos from my phone, also the base gasket was cracked but that may be from my dissasembly. Measured the squish at .9mm, any idea why the piston is all black like that?

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Re: Puch sleeper build

Stefan Josheski /

.

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Re: Puch sleeper build

side to side on the rod is OK, in and out is not. neither is sloppy RTV over incompletely removed base gaskets. clean all that off both surfaces and get or cut a decent gasket for sure. also looks like your head been leaking,. the piston will get black over time pretty inevitably, you're buring oil in there. make sure the exhaust isnt coking up, you can scrape it off with a plastic scraper is best. metal is fine except when you make scratches it gets easier for more carbon to build up on the rough spots.

generally tho seems mostly oK, cool!

Re: Puch sleeper build

Stefan Josheski /

here's the video

Edit: Also did do 3 failed attempts at port maps and I just measured the ports for height (forgot to do width for the exhaust port and intake lol), so I got this:

-Cylinder deck to top of the exhaust port: 32.15mm

-Cylinder deck to bottom of exhaust port: 43.45mm

-Cylinder deck to top of the intake port: 51.5mm

-Deck to bottom of intake port: 60.9mm

-Top of the deck to to top of transfers: 37.35mm

*Total exhaust in height: 11.3mm

*Total intake: 9.4

*transfer: yes

Have yet to calculate the timings, and go back and maybe retry the port map or at least measure the width of the ports somehow. (edited)

Re: Puch sleeper build

Stefan Josheski /

Got a port map, turns out I didnt apply enough pressure XD. Now I'm thinking about doing some very basic ass porting after I rebuild. Thinking bout adding another base gasket so I have 2mm to get the transfers to 106°, then cut the crown 1mm down at the exhaust (if possible to go down that much) and get it to 153°, sand the head 1mm to get the squish back, and open a 2mm window at the intake to get 134°. Should be good?

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