Yamaha 80mm piston rings

[Wally]

My café as it turns out has Yamaha big bore 80mm pistons, I'm looking for a set of new rings for them any one know were I can get some.
Yamaha Australia want $206 per piston.

 

[TwoManyXS1Bs]

Hey, Wally! Measure your ring thicknesses, and note if you need special edge profile, like the scraper edge that appeared on the later ringsets. I used the old factory piston kit, with the thicker top ring and non-special second ring. Long ago I found some 80mm Ducati rings, with wrong thicknesses for my older pistons, that may or may not work for you. I only mention this so you won't have any 'surprizes'...

 

[GreasyC]

They're 35 euros per piston at Heiden. Not sure they're compatible with the piston you've got, better take some measurements and get in touch with them.

 

[smokedyerstang]

Mikes has them. Not sure if they are specific to xs performance pistons or not(that's how it's listed)

 

[jay760]

Are the rings the same size as TX750 pistons, I've had a few of the Yamaha 80mm pistons, often wondered if they are, if so they are cheap here. http://www.ebay.co.uk/itm/YAMAHA-TX...pt=UK_Motorcycle_Parts_13&hash=item3a7d93da6d

 

[Wally]

what would the ring gap max wear on this rings amyone know?

The oil ring on these are one piece is that the same on TX750

 

[TwoManyXS1Bs]

1-piece oil ring? That's like my old vintage set, early `70s. Yeah, better measure land widths and depths for reference. Then contact the suppliers, get their dimensions. Upgrading to 3-piece oil rings is ok if dimensions are compatible.

 

[Wally]

Yammy dealer made a mistake ring set per piston $45 aus sounds a bit better