1250 shift cam operating question ?.

Having Problems with your BMW R1200RT/R1250RT? or have some Maintenance and Service questions?
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Panman40
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1250 shift cam operating question ?.

Post by Panman40 »

So on my 1250rt I can definitely notice a kick in power and sound when the shift cam operates, this is approximately at 3750rpm or so on acceleration, it’s becoming slightly annoying when I’m riding a bit more spirited without the wife on board.

Anyone else notice this especially the note of the engine on their 1250 ?.
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Glenn
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Re: 1250 shift cam operating question ?.

Post by Glenn »

Yes, there is a distinct change in the exhaust note. Mine also has a tappet sound from the left cylinder, it's booked in for a 12000 mile service next month.
Panman40
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Re: 1250 shift cam operating question ?.

Post by Panman40 »

Glenn wrote: Sun Jul 16, 2023 11:38 am Yes, there is a distinct change in the exhaust note. Mine also has a tappet sound from the left cylinder, it's booked in for a 12000 mile service next month.
You sure you haven’t stolen my bike ? :lol: . Even after the left side cam chain tensioner swap my left pot is still rattly when it’s hot, fine when cold.

The difference in sound is like from a normal “waaaaah to a “BlaaaaH !. Keep me informed on what your dealer says please :thumb:
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Re: 1250 shift cam operating question ?.

Post by Mac001 »

Yes mine does the same and the other one I test rode likewise. If you are changing from one cam profile to another surely the note of the exhaust must change as the gas flow is different?
Panman40
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Re: 1250 shift cam operating question ?.

Post by Panman40 »

Thanks for the reply’s, at least it’s not just mine!. I’ve seen reports in some reviews that you cannot tell when it happens and it’s seamless… obviously it’s not.
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