anyone disabled the exhaust valve @ end of the cat?
- Thread starter farebro
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Boardsofnorfolk
Well-known member
Pics or it didn't happen!farebro link=topic=1228.msg11276#msg11276 date=1344111008 said:
babarr46
Well-known member
Same as, if you do it with the standard you will loose bottom end power unless you map for it :Ducky link=topic=1228.msg11295#msg11295 date=1344164294 said:
babarr46 link=topic=1228.msg11297#msg11297 date=1344170640 said:Same as, if you do it with the standard you will loose bottom end power unless you map for it :Ducky link=topic=1228.msg11295#msg11295 date=1344164294 said:
Sorry Babarr but that is utter crap. The valve is there for noise reasons. Nothing more. There are a set of valves in the headers for back pressure and bottom end torque. The cat valve has nothing to do with it.
babarr46
Well-known member
What noise!! junk the standard and buy a full system it weighs a tonne and strangles the power....Bring the Noise!
junk the standard and buy a full system it weighs a tonne and strangles the power....Bring the Noise! Your post suggested that disconnecting the cat valve "lost bottom end power" - that is totally incorrect.
For those that want a little more noise, disconnecting the valve cables will do absolutely nothing to change the performance of the bike.
This is the point of the thread after all. It's obvious a full system will be better than the oem exhaust.
For those that want a little more noise, disconnecting the valve cables will do absolutely nothing to change the performance of the bike.
This is the point of the thread after all. It's obvious a full system will be better than the oem exhaust.
I've just done mine. 5 min job and I wire locked the valve open just in case the spring ever fails (slim chance I reckon). I kept my cables attached to the bike, just disconnected from the valve. It's a piece of piss. The only thing that might concern me is with the cover reattached, although it looks like nothing has been touched, as the servos move I can't be sure what the cables might be rubbing against under the cover. I'm not going to remove the cables in toto as the option of easily putting it back together appeals!
Noise increase is marginal, growls and rumbles at low revs more though. Not managed a test ride yet, it's shitting it down here.
Noise increase is marginal, growls and rumbles at low revs more though. Not managed a test ride yet, it's shitting it down here.
See here http://www.s1000rrforum.com/forum/s1000rr-do-yourself/743-exhaust-valve-mod-little-more-rumble-idle.html
Our crappy US cousin's site has a thread on how to do it.
Our crappy US cousin's site has a thread on how to do it.
Improves standard system noise a little but, no substitute for opening the airways....
Boardsofnorfolk
Well-known member
Doesn't show a good step by step on there,just some guy pointing lol needs a good guide so nobody breaks anything. I mean how the hell do you remove the plastic cover?MOz link=topic=1228.msg11315#msg11315 date=1344183808 said:
hmmm.... Wiggle, wiggle, wiggle, wiggle, wiggle yeah, yeah? (BTW I'm sexy and I know it 8) )Boardsofnorfolk link=topic=1228.msg11358#msg11358 date=1344237210 said:
They mention that system will record malfunction of this valve in it's logs. It won't display anything on dashboard but it will come up under service scan and that makes me thinking, is it worth? What will I gain and what can I loose?
Boardsofnorfolk
Well-known member
Lol,I tried the wiggle wiggle,nope it's still on there. It will only give you some more rumble,as for throwing fault,I'm not sure.eneasz link=topic=1228.msg11362#msg11362 date=1344238708 said:
Boardsofnorfolk
Well-known member
Yeah I see that bit,but how does it unclip? Do you push on it? Ie with screwdriver? Anyways I'd like to know so I can clean behind it please ;DGodzilla link=topic=1228.msg11371#msg11371 date=1344244165 said:
If not everyone had so much to to read all their thread, someone suggested this:
"All I did was switch the bike on, let the valve open up, switch the bike back off from the key and not the ignition switch. At this point the Valve is still open when the bike is off. All you need to do is disconnect the servo power cable and she will ramin open at all times. The servo Kilo rating would be huge and would have no issues keeping that spring open. Also the benefit of this is that you can reverse the mod in 20 seconds without ******* around calibrating the servo wires and fine tuning to get the butterfly closed properly again when needed."
I may have a little look around when I get back home
"All I did was switch the bike on, let the valve open up, switch the bike back off from the key and not the ignition switch. At this point the Valve is still open when the bike is off. All you need to do is disconnect the servo power cable and she will ramin open at all times. The servo Kilo rating would be huge and would have no issues keeping that spring open. Also the benefit of this is that you can reverse the mod in 20 seconds without ******* around calibrating the servo wires and fine tuning to get the butterfly closed properly again when needed."
I may have a little look around when I get back home
Boardsofnorfolk link=topic=1228.msg11375#msg11375 date=1344244949 said:
Ease it out with a small flat head screw driver. It clips to two notched poles that the cover sits on. Once you have it off, all will make sense.
I'm going to reattach mine come service time. The bike will still throw up a diagnostic fault code at the dealers but they will clear it when they find nothing wrong.
Boardsofnorfolk
Well-known member
Well I cant get that little plug out! Do I need to push screwdriver down on the clip?eneasz link=topic=1228.msg11384#msg11384 date=1344257273 said:
With a small narrow bladed flat head, ease it into the gap between the edge of the clip and the cover. Gentle prise it towards you and it will come out. Just think of the clip as a large flexible
Circlip and it will break free. Watch it if it pings across the garage! It definately helps to remove the slip-on can and cat cover (attached to the exhaust tightening ring) first.
Circlip and it will break free. Watch it if it pings across the garage! It definately helps to remove the slip-on can and cat cover (attached to the exhaust tightening ring) first.
