Piston possibly suitable for Vega

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Piston possibly suitable for Vega

Post  digger59 on Sun Sep 12, 2010 2:05 pm

I'm always loking at pistons which could be used in the Vega here in Colombia,one comes to mind as looking suitable it's from a Bajaj Sunny 80cc (Yes ,Bajaj who make the Chetak Vespa clone) it's like a Honda 50 cub but 3 speed ,2 stroke).

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Re: Piston possibly suitable for Vega

Post  daz.h on Fri Sep 17, 2010 2:24 pm

there must be something available off the shelf that will fit, its just finding it Neutral
going to use a malossi piston in my vega, from memory its around 51mm, just needs a small packer under the cylinder.

i'm sure somewhere on the internet will be a system where you can input the piston size, crown height etc and it will give you a reccomended piston.

something similar to whats advertised below.
http://cgi.ebay.co.uk/Quad-Bike-52mm-90cc-2-Stroke-PISTON-KIT-Kazuma-Panda-/160471366613?pt=UK_CartsParts_Vehicles_ATVQuad_Trike_Parts_Accessories_SM&hash=item255cd6bbd5
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Re: Piston possibly suitable for Vega

Post  digger59 on Sun Sep 19, 2010 10:17 am

Vespa 90 rings fit with a little gapping to the Vega piston.

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Re: Piston possibly suitable for Vega

Post  Snails on Sun Sep 19, 2010 11:56 am

Gapping?
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file

Post  littlemoon on Sun Sep 19, 2010 12:10 pm

you have to file the gaps in the rings back a bit to clear the ring pegs. i am using a set of vespa rings in my lui 75cc
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Re: Piston possibly suitable for Vega

Post  zefarelly on Mon Sep 20, 2010 1:26 am

I'm not convinced by a 4 stroke piston in a 2 stroke, you certainly wouldn't get far with the oil control rings fitted.

that piston casting looks worse than th rocker covers I have made!
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Re: Piston possibly suitable for Vega

Post  daz.h on Tue Sep 21, 2010 4:13 am

zefarelly wrote:I'm not convinced by a 4 stroke piston in a 2 stroke, you certainly wouldn't get far with the oil control rings fitted.

that piston casting looks worse than th rocker covers I have made!
i was refering to the diagram and the size measurement table, not the actual piston.
should have made myself a bit more clearer.
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