Hi All

I have a Cota 123, complete except for the piston which has a broken skirt. I can get an original part but I'll have the hassle of posting it here.

Does anyone know of another (Japanese?) piston that might match?

Thanks in advance.

David in Johannesburg

I would have thought its very unlikely you will find a match as two-stroke pistons are full of very specific ports as you know! Good luck anyway, otherwise you will have to trust the delivery guys....

Steve

It may just be possible. Not certain the 123 and 172's had any boost ports machined in the back of the piston.

In the old days you could go search through the data in a Hepolite catalogue and find something close enough to be modified. Of course these days it's digital and you'd be hard pressed to find such a catalogue.

It still is likely to be a long shot as there are several criteria to meet. Bore obviously, Gudgeon pin Diameter, Crown Height, Crown Radius, Skirt Length(s), Transfer cutouts, Ring Pin positions etc etc.

I would suggest looking on www.ebay.es as there still seems to be people with genuine parts in Spain.

Wayne.....

Edited February 26, 200917 yr by wayne_weedon

You can also try the Montesa dealers in the States.

Rocky Mountain Montesa

Southwest Montesa

Like any of these places, patience is a virtue.