Yes, I fitted one of these. I just disconnected the servo motor and plugged it in and everything is completely fine. It's easy to cable tie the bypass to the lower frame rail. The bike runs exactly as it did before, with no extra noise as far as I can tell, and no effect on performance.
There is and in short I did that thoughts its really preventive maintenance and should be done as early as possible rather than once the issues starts!!
Does it affect roadworthiness or safety in any way?
Only if the engine throws up a fault (no warning lights allowed I believe)
"Roadworthiness" is a moot point in terms of exhaust/noise emissions. I was specifically thinking about the Construction and Use Regulations, Regulation 57 as currently amended. Section 3.1 from the link provided HERE can be interpreted so as to suggest that tampering with any part of an exhaust system which then might increase noise emissions (which disabling the flapper valve will do at idle) could be an offence. I think it unlikely though but worth checking hence the question.
There is no emission test for a motorcycle MoT and the noise test is subjective, i.e. down to the tester's judgment. You will fail with anything marked "not for highway use" or similar. I have kept the standard silencer and it's barely noisier than standard, except at full throttle when it's slightly louder.
Nope, doesn't affect it in any way. I've had one fitted to my 2019 R1250GS through the past 2 MOT's at the dealer and its not been an issue or problem at all.
This stuff??A job I will need to do soon as I am now a couple of thousand miles in to my replacement headers. Some good advice on here.
I prefer to use Plusgas as a penetrant on seized fasteners instead of WD40 as it penetrates with a very thin film and high surface tension compared to WD (which is more of a general purpose goo for displacing water, corrosion protection by surface film formation, and making plastics clean and shiny.)
Graphite powder or high nickel content paste would be my weapon of choice for lubricating a hot exhaust valve (unless I can find an old tin of Clydespin at work).
