RE: Boosterplug - 2

I've just been looking into Boosterplug for my 2017 RS. Two points.

1) Boosterplug offer 2 versions for the R1200RS - 2015-16 and 2017 onwards. I thought the bike remained unchanged right up until the 1250 was introduced, so a little confused there.

2) I read the techie bit as to how Boosterplug works. It seems it runs its own temperature sensor and at low revs 'fools' the ECU into thinking the air temperature is colder than it is. The ECU reacts by enriching the mixture. Once the engine reaches a certain rev band, the Boosterplug system cuts out. Sounds feasible.

:)

2017 version was Euro 4 compliant (slower) but had gearbox upgrade (smoother). I suspect the requirements are slightly different.

I have been plagued with lean-surge issues on all of my motorcycles, to one extent or another, going back to my 1977 Yamaha SR500, which required me to double the size of its pilot jet to stop it from running like a two-stoke on part throttle. And that includes about 8 BMW motorcycles, both K and R models, that all surged at a steady throttle. With that experience in my background I have been very pleasantly surprised how well my 2015-build RS fuels. It is just about perfect and I have no intention to make any changes to the engine or its accessories. I learned long ago that if things are working well, don't mess with them. The result may not be what you were hoping for.

Zitat von Richard230 im Beitrag #19

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I have been plagued with lean-surge issues on all of my motorcycles, to one extent or another, going back to my 1977 Yamaha SR500, which required me to double the size of its pilot jet to stop it from running like a two-stoke on part throttle. And that includes about 8 BMW motorcycles, both K and R models, that all surged at a steady throttle. With that experience in my background I have been very pleasantly surprised how well my 2015-build RS fuels. It is just about perfect and I have no intention to make any changes to the engine or its accessories. I learned long ago that if things are working well, don't mess with them. The result may not be what you were hoping for.

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I think you need to have a trained technician check the bike over, your fuelling issue seems strange to me and I don’t recall many (any) similar concerns expressed on the forum.

[quote=spainy|
Mine is the opposite. Only had it a week but it surges all the time at low and higher speeds, cruise control or not. I can see it driving me bonkers.[/quote]

Mate - that is not running right - you said you bought it from a company ? You need to get it back there asap. Good luck

Zitat von andygriff im Beitrag #22

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[quote=spainy|
Mine is the opposite. Only had it a week but it surges all the time at low and higher speeds, cruise control or not. I can see it driving me bonkers.

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Re the loose head bearings. The RS has ‘floating’ discs which will ‘click‘ when coming to a stop, especially if you are pushing it around manually. Myself and a few others have mistaken this noise for loose head bearings initially.

Zitat von Oscarguitar im Beitrag #24

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Re the loose head bearings. The RS has ‘floating’ discs which will ‘click‘ when coming to a stop, especially if you are pushing it around manually. Myself and a few others have mistaken this noise for loose head bearings initially.

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Traditionally the BMW Booster Plug fools the ECU into thinking that the engine is running cooler than it actually is and enriches the mixture slightly.

I've had major issues with various bikes in the past, VFR1200F, Triumph 1050 Sprint etc and in comparison the RS has no issues. Of course if you ride around at 30mph in 4th gear.......

Just found this thread.

The accelerator module. Who's fitted one and did it work? Worht the money or in the bin within 30 minutes?

Ta