Would this fit?

[Guest]

I have a 1981 GS650, would an exhaust from a GS550 fit it?

[steveb922]

I'm not sure, but I have a 1980 550 and can take measurements if that would help.

[UK-GT]

I'm not sure, but I have a 1980 550 and can take measurements if that would help.

That would be great thanks. Not sure what measurements I would need, but I presume center to center port spacing, center to center of the studs, I think on my 650 ports 1 & 4 are slightly angle out.

Cheers

[steveb922]

I'll go and take a look

[steveb922]

Some quick measurements:-

Downpipe flange OD - 36mm
Stud centres - 62mm
Ports 1 - 2 and 3 - 4 - 88mm to centres
Ports 2 - 3 - 116mm to centres

Ports 1 and 4 slightly angled out

Caveat - the beer in the village inn was good last night. I'm happy to measure again if you think it's necessary!

[UK-GT]

http://www.thumbsnap.com/79UiHmNe
See photo. Its my spare head, sorry its a bit fury!!

[Charlie G]

I think I remember someone posting yesterday the the spacing is the same between the two engines but the diameter is different and won't seal up tight. Maybe a Seaking thread?

cg

[Nicholk]

Motad

Hi, I have my Motad 4-1 currently off my 550ET and can take photos with tape measure if you think it will be of any help.

[Seaking]

I think I remember someone posting yesterday the the spacing is the same between the two engines but the diameter is different and won't seal up tight. Maybe a Seaking thread? cg

Not my thread, I'm following this one as well.. might be referring to it later

[UK-GT]

Hi, I have my Motad 4-1 currently off my 550ET and can take photos with tape measure if you think it will be of any help.

That would be great thank you as its a Motad I am looking at. I can get an exhaust in the UK for a 550 but not for a 650, I checked on the internet and according to the website there are only 2 GS650GTX 's on the road!!!!

[tkent02]

You can make a tube shaped spacer to make the 550 pipes fit the 650 ports, but as is they are a bit too narrow.

[UK-GT]

Looks like my problem has been solved, just found a second hand Motad 4 into 1 made for a GS650 for £35.

[Nicholk]

Motad

Congrats....trying to photograph mine was not proving easy...was gonna have to get assistance....glad I don't have to.
Good luck