As the previous owner of a 1200 Multi for the last 5 years I can vouch for all Fred says. The exhaust valves sooner or later will seize, reducing power and showing an error on the dash. If it is seriously broken the only way of restoring it is replacing the entire cat.It as nothing to do with emissions, but is all about noise tests. It does not only operate at low revs but also at high. I have videos of mine on both the 848 and the SS operating throughout the rev range.
One good reason to disable it is that they seize, ask on any Multistrada forum, and can then throw error messages on the dash and be costly to rectify.
I have removed the motor and the ugly cable that hangs below the engine, and wire locked the valve open.
From what i have read in this forum, you should be glad you don't live in california and have to work within their vehicles emission laws. Euro 4 is presently on our SS, the euro 5 regulation cuts euro 4 by half. Wont be long before the cat is bigger than the engineI am so happy with all the emission controls that are going to save the planet. I'm not already feeling the difference.
Hmmm, anyone have a recommended lubrication or maintenance procedure other than disable or remove it to prevent failure?It's common on many bikes for the valve or cable to gradually get stiff and then the servo motor fails. Can be expensive as I've found out in the past.
The valve is operational at low revs for the city and traffic etc.. keeps emissions down. The valve is in the cat box and the motor under the horizontal cylinder on the right side. To be honest removing it will not present any great improvement in torque or hp. It does not limit performance but limits pollution.
With the full race system I only got 1.4hp and 1nm extra so I really cannot see the butterfly being in the open position aiding any performance improvement. Not being a pessimist, its simply my experience with the SS.
Yes, it is removed and put in a box with the coffin cat...and other bits n pieces.Is this thing removed eliminated when they fit the full Akra exhaust system ?