Forged Pistons for GT

[gerard collier]

Has anybody used J&E pistons 81 mm for 750 rebuild and what type of
Bike were they originaly made for. I got a set several years ago from a 750 yamaha and found they have 20mm wrist pins not 22 like my duck

[Eldert]

Hi Gerard
80 and 81 mm pistons are most likely for the Yamaha XS 650 twin
with these pistons you could make a 750 out of a 650
Yamaha used 20 and 22 mm wrist pins tru the various years as the
production of these bikes lasted a very long time
i have no idea of these pistons would fit a Ducati as there a things like
valve angles , compression height

Eldert

[wdietz186]

Gerard, Contact Malcome at Syd's cycles in st. pete Fla. They have a nice set of sport style pistons available.I believe they are about 020'' in oversize.

[DesmoDog]

I got the Sport pistons from Syd's in my GT, they've worked out fine.

[gerard collier]

Craig

Talked to him today
They are on their way !!!!
I am going to send them the cylinders and the heads to DR Desmo

Gerard