please identify this header

[Guest]

Can anyone help me identify what bike this header fits. I purchased it a couple of years ago when I was cleaning up the 550. The guy I bought it from said it fit a gs550, but it does not. Doesn't fit my 1000 head either. The box it came in says supertrapp, but doesn't have a part number.

gs750 maybe??

any help would be appreciated

[Steve]

I don't know what it fits, either, but my 850 measures about 1.7" on the outer cylinders and the 650 measures about 1.6"


.

[runrx02]

thanks Steve. hmm....well maybe it fits 650-850...?? anyone with a 750 care to measure for me?

[brveagle]

550 and 650 are practically the same header, just different inside diameters. The spacing is the same.

I'll go measure my gs650 pipes and see what i can find

[first timer]

*thread hijack*

brveagle, i am still waiting for some pictures of your bike, and a follow up report on how she is running now thats it's been a few weeks.

550 and 650 are practically the same header, just different inside diameters. The spacing is the same.

I'll go measure my gs650 pipes and see what i can find

[mcycle-nut]

The diameter of my stock '78 GS750 head pipe is aprox. 1.788." Centre to centre spacing is about 3.862" on the outside pipes. My Supertrapp? header measures about 1.744" dia. for my 1100, and the stock head pipe is 1.775" in diameter. Spacing for the 1100 is about 4.094", centre to centre.

[runrx02]

thanks guys...maybe it doesn't even fit a gs

[runrx02]

well i just checked center to center measurements on my 550 and to my surprise they are pretty close, but i think pipes are too large to fit into head. so it's probably a 650 header.

[Nessism]

well i just checked center to center measurements on my 550 and to my surprise they are pretty close, but i think pipes are too large to fit into head. so it's probably a 650 header.

I think you have it. The 550 ports are about 1.4" (measured an exhaust gasket donut).

[distraction628]

Maybe it fits the 83-86 550....

[Flatline_Racing]

Looks like it might be a kawasaki piece.

[madjack57754]

I have a super trap hanging in the garage at the house, for an 1100. Looks like what you have. I'll measure it when I get home and compare your measurements.

[marz]

sorry mate!

i just measured my old head (that would of been the thing to do first only i didnt think of it).i cant mesure inches.but this is what i have 40 mm diammiter of exhaust.
and about 31.5 cm for full length of all four.
ten cm outside and inside 12 cm.
o----------o------------o----------0
center to center best as can be given the tools i dont have.
hope this is of some help
cheerrio marz
i dont know if this worked sure did make my keyboard dirty!
bloody soot all over it!

/Users/marzwillis/Pictures/iPhoto Library/Originals/2007/Roll 3/MyPicture.jpg

[runrx02]

thanks marz! what bike were these measurements from?

[marz]

there mesured

g.s. 750 e canadiain mod. 1984 check the post above i tried to put a piccy in.

to early i was up at 3 watching the moon.


o.k. i was howling as well...
cherrio marz.looking for a g/f.any one no of any spare.?