Steel tubes between fins

[Bluesman]

I bought a basket case Blaster for cheap and noticed that the cylinder has steel tubes between the fins instead of the rubber spacer thingys that I am used to seeing. Not that it makes any difference, but was just curious if anybody knows if it's a year thing or what. It's a OEM Yamaha cylinder.

 

[jbuckster07]

You sure its a stock cylinder? Not alot of stock cylinders have been sand blasted. I would check to make sure its not a 240 cylinder, that come in that finish. Check out this video and check if its stock or 240 kit

 

[79 bronco]

Can we get more pics of that cylinder from all sides?

 

[Bluesman]

I wish it was an aftermarket cylinder, but unfortunately it's not. The bore measures 67mm.

 

[79 bronco]

From what i can find it looks like the older 1988 and 1989 cylinders came like that.

 

[Bluesman]

I have an 89 and it doesn't have the tubes like that, so it must be 88 only. This cylinder came off a much newer Blaster, so somebody must have swapped it. Doesn't matter. It was just a curiousity thing.

 

[79 bronco]

I see them on the 88 and 89 on this http://www.yamahapartsnation.com/oemparts/a/yam/5003891af870021f60a09f1a/cylinder-head
But not on the newer years!

 

[Bluesman]

Cool, thanks.