O-tuning Olivier's px200

[fastfrog]

Yes maybe but I don't trust neither piston nor rings to cope with a too square and wide exhaust port...

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Back to the front:
porting is finished:



My previous o-tuning piston gonna return to active service soon....

[fastfrog]

bearing, seals changed.
A cool modification on the mag side seal to optimize lubrification of the bearing: usually seal shuts the far side of the small lub tunnel mag side. This bearing is the Achille's heel of the PX range cases. An italian forumer teach me how to leave mixture going where it should go.

[fastfrog]

packer in place. Boost port became more impressive...



motovespa crank have a specific mag cone. I tried to fit several FW I've got in my den and none of the px range fits. I put a T5 one and then miracle happened! same cone (a bit longer) than the T5 one!. Great news cos motovespa FW is 3kg!, T5 FW 2 kg. Obviously they own a same design with a maximum weight focus around the axis.

[Ginch]

bearing, seals changed.
A cool modification on the mag side seal to optimize lubrification of the bearing: usually seal shuts the far side of the small lub tunnel mag side. This bearing is the Achille's heel of the PX range cases. An italian forumer teach me how to leave mixture going where it should go.

What exactly does that do Fastfrog? Does the cutout go to the top or bottom?

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Do you see just under my thumb the begining of the small conduit supposed to bring oil/gaz mix to the outter side of the needle bearing? If you put your seal without this cutout the conduit exit is blinded..... just turn over your case mag side and you'll find which way to fit it properly....

[fastfrog]

A last one for snapper:

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barrel skimmed and honned. As new as a baby face....
Squish 1,1mm
MMW head.


engine completed and back into the frame.
First kickstart yesterday tic over sounded fine to Oliver. No run because selector cables were in a mess....

[Snapper]

Fantastique, FF!

[fastfrog]

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