New Exhaust System - Eagle mach 7

[Uncle Bob]

I saw this bike online recently and liked the look of it's exhaust:

Although my Kat's 4-into-2 is nice, it just doesn't have the sound. So I thought I would store that and get somethuing new that sounds and looks nice! (OK call me a tart).

Found all the options on this German website:
http://www.eagle-exhaust.com/Eagle-Mach ... mit-EG-ABE

Anyone had any experiance of them? Anyone else wanting a new pipe to try and get a group discount?

Rob

[Pop-Kat]

Back in the 80's THE pipe to have was a Vance and Hines, Eagle did a pipe that looked identical to the V&H and performed pretty much just as well, there was also Cobra which i think were the same company with a different tip on the end can. The pipe above looks just like the original ones but in stainless (all the pipes back then were mild steel painted black. I had an eagle on my popup back in 87, with the correct jetting and pod filters the bike was fast, as fast as a slabby 750 and even showed 250kph on the clock once. So i'd say the pipe works, but you will need to rejet the carbs even with a std airbox.
For a V&H megaphone pipe they say use 130 main jets and remove the airbox lid, your bike should be on 112.5 mains if it's std. As a suggestion you could try starting at 120's with an eagle and leave the airbox lid on and maybe turn the mixture screws out half turn to 3 turns out. should run ok as a starting point then fine turn from there.

[Uncle Bob]

Cheers for that info.

That raises a qustion for me though. My bike is an Italian import GSX1100SD and it has 107.5 main jets in. I had a look at the GSX1100SD fiches I have on the computer and that does list both 112.5 and 107.5 for the SD but 107.5 is listed for country E02 and E34 (UK and Italy); No country code listed for the 112.5 main. I notice the SZ is only listed with 107.5. What is correct?

I have had the carbs apart for painting a few years back and put them back together as std. but I might need a guide on how to check mixture / air etc, equipment required, etc at some point.

Out of interest, when mucking about with the mains, do people take the whole bank of carbs off, swap mains and put back on again (I will admit to hate doing that!) or do they try to remove the float bowls and do it that way?

Rob

[johnr]

i had an eagle race pipe on my kat 11, it was mild steel painted black but pretty much the same design as the one in the pic. it howled! what an awesome sound, and the bike went brilliantly with it on, i was running gsxr750 flatslide cv carbs on it at the time. it was a great pipe, i think ive pics somewhere, i will have a dig, but a nice system, although loud, but not peircingly so.

[johnr]

[johnr]

it was pretty rusty by the time i had it, and i had to weld plates on it a couple of times, and it was incredibly light, possibly cos it was the race version. cos my kat was low it often grounded on speed humps, but it only got a bit flattened!!

[Pop-Kat]

I was assuming uk's had 112.5, the aussie one i have has 107.5 but after all these years they might be uk carbs on it, who knows ?. I'm running the v&h megaphone and at Brands (that got snowed off) i had no air filter, on 130 mains it was so lean it wouldn't rev past 7k, going to be be putting in an air filter and see how it is then (didn't have one at Brands)

You will have to remove the carbs to change jets, a pain but neccassary. If you get it perfect first time your lucky, you want it at least safe so best to go a bit too big rather than small, regardless of the std jets i still reckon 120's as a starting point with std airbox and filter. the jets you want are the mikuni slot type, there's an ebay listing that sells them for £1.99 per jet, cheaper than Allens.

[Katgeezer]

As an aside, is it me or does Fossie look.... er....a bit larger shall we say, than Johnr in that pic. Sorry guys...hehe.

[johnr]

its the camera angle, he's really 6 foot 6 and 12 stone,,,,

[fossie]

I was once!