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Disconnecting the exhaust valve?
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Disconnecting the exhaust valve? is there anything to gain? I notice on ebay there are small connectors/replacement wiring blocks when disconnecting the valve, does that only stop the FI instrument light appearing or does it do something useful? |
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In all honesty I'm not sure but mine has been seized open for the past 6 months. The only thing I can notice from low down revs under hard acceleration there is a slight stutter also when in dynamic mode it does pop and bang even more on the over run which I don't mind, BMW have said there would change the exhaust on the next service but I'm not that really bothered. |
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Forgot to mention you don't need to buy anything if you want to disconnect the valve. All you need to do is remove the actuator cables, follow the cables up to a black box, remove box from bike, take cover off and un-hitch the cables, put box back together and put back on bike. The valve is spring loaded to be in the open position, the computer still thinks it's connected, the actuator box will still move but the direct connection has now been removed. |
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Sun Aug 12, 2018 5:44 pm (Last edited: Sun Aug 12, 2018 5:44 pm)
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Zitat von Zoomie im Beitrag #4 a sense of putting it to the man as you have removed a device fitted to pass emissions tests just wait a while, as with every other exhaust valve fitted to water cooled boxers, your's will fail, and you will achieve this hallowed status without any effort on your part some higher mileage riders are on their 3rd or 4th exhaust valve replaced under warranty, if you read GS forums on a day to day basis, you are unlikely to notice any effect unless you are in the habit of measuring exhaust emissions at 3250 rpm. |
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I have a "power valve" on my 2002 Yamaha FZ1. Yamaha didn't install that thing to make the EPA happy, they say they did it to broaden the power of the engine in the mid-range of its power band. And it may very well do that as the bike has plenty of mid-range grunt for a 4-cylinder semi-sport bike.
Current motorcycle collection: 2002 Yamaha FZ1; 2005 Triumph Bonneville T-100; 2011 Royal Enfield Bullet 500; 2009 BMW F650GS; 2016 BMW R1200RS; 2011 Zero S 16.6 kWh
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Zitat von firebird1 im Beitrag #2 Anything that is designed to rotate in the exhaust system is doomed to fail, eventually, ...its simply a noise suppression device, mine is about to be consigned to be in the open position only .
R1200RS
V4R Tuono D14 (Bantam) TL125S (190) |
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