Quote:
Originally Posted by SteveAttwood
Tim,
Checking the info, it states the 800GS has "Characteristic map modification for 91 RON for F 800 GS (no extra cost)."
The compression for both models is 12 to 1 and the recommended fuel for the 800GS Super unleaded (95 RON) the recommendation for the 650GS is Normal unleaded (91 RON).
From everything I have read the 800GS is switchable between 95 RON and 91 RON fuel. This appears to be a manual switch rather than a internal knock sensor. I wonder what will happen if you run the 95 RON map with 91 RON fuel. I had a simular feature on my KTM it retarded the ingnition advance.
Honda has a similar key immobilizing system (HISS) which can also go wrong, you should treat the keys with care and keep them away from other immobilizer keys as the can be corrupted. If you loose the Honda keys you have to replace the ignition control module, no amount of hot wiring will work; I have nightmares about loosing my keys on a trip.
Steve
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Thanks for that info; that's how I have understood the fuelling information that I have read - somewhere it was indicated that the 91 RON facility is for the American market.
HISS: I'm familiar with that and I have not had a problem with the 2-3 Hondas I have owned with this keying system - agree about taking care of the keys (including keeping them away from magnetics - something I have tried to do in the past) because there must be some electronics inside of them!
So, in summary, BMW have a similar facility in their keys.
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Dave
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