Fuelling.... does it work this way???

[Dave T]

Hi all,

I've just ordered a new R1200GS, but I'm already contemplating a cat free 'open' full exhaust - maybe BOS (as per the demo bike I rode), maybe Akrapovic (if my numbers come up).

Using the 'search', there seem to be some concerns that the bike may run a touch lean (and I know I should get it on a dyno to make sure and put my mind to rest), but I'm assuming that since they are designed to run on 95 ron fuel (standard unleaded), if it is a touch lean, a change to Shell Optimax (98ron), BP ultimate (97 ron) or similar 'super' unleaded would move things back towards 'optimal' without the need for a 'gadget' (power commander type thingy). Does it really work that way, or am I barking up the wrong tree...

Cheers,
Dave

 

[Greg Masters]

Dave

The brand or octane rating of the fuel won't make any difference to the mixture.

The best advice has got to be to dyno the bike after you've done the mods and have the mapping reset.

Greg

 

[Fanum]

Deja Vu

 

[Dave T]

Deja Vu

Yep, well spotted . I originally posted in R1200GS, but at the advice of Outtomunch, I've re-posted it here in the hope of a few more replies....