I see the alternator only puts out 400W which I think is the same for past 800s.
How has this worked for F800ST and F800S riders who use several items of heated gear?
Lee 2011 K1300S
MOA # 30878
Past BMW Bikes, 2003 K1200RS, 1991 K75S, 1987 K75T(bought new in 1988), 1984 R100RT
Looks like the "RT Lite" many have been asking for.
Hopefully it will be on display at this years bike shows across the country.
08RT
Looks great. I am highly interested in the white one. Where in the blue .......... Is the cruise control?????
02' K12LT ~ 83K '97 F650GS ~ 32K' 81 XS400 ~ 9K
MOA #184190 Club #231 48035
02' K12LT ~ 83K '97 F650GS ~ 32K' 81 XS400 ~ 9K
MOA #184190 Club #231 48035
Lee 2011 K1300S
MOA # 30878
Past BMW Bikes, 2003 K1200RS, 1991 K75S, 1987 K75T(bought new in 1988), 1984 R100RT
No cruise, no buy.
1968 BMW R69S, 1975 BMW R90/6, 1995 BMW R100R Mystic, 1995 BMW R100GSPD Classic, 2011 BMW R1200RT
On my F650GS twin the alternator output is no problem. For accessories I have radar, gps, HID running lights, P3 taillights, heated grips, and his and hers plugs for heated gear.
Obviously I don't run everything at once. If we are running both heated jackets and heated grips then I can't also have the running lights on. To keep track of the battery I simple have the radar detector set to volt meter. The one surprising thing with the alternator on this bike is that the volts actually go up at idle. Running down the road the volts will stay in the 14.1-14.3 range. At idle it goes up to the 14.5-14.8 range.
On my K1100LT I have the same list of accessories on it plus the lights on the Bushtec trailer. And since its a '93 it also only has a 400 watt alternator. Nobody ever comments on the electrical output of that bike, but I have heard it often about my GS. People have just become used to having super sized alternators on everything now I guess.
The one thing this is a known weak spot in the electrical on the 800's is the stator. They like to burn themselves up. BMW now has an updated flywheel that has holes in it thats supposed to help keep the temperature of the stator down. It hasn't been out long enough to know yet if it fixes the problem. BMW also won't just sell the stator, they sell the flywheel and stator together for a cool $900. Uhhh no thanks! This summer when my stator died at 40K miles I just bought an aftermarket stator for $165. By the time this one dies it should be known if the new vented flywheel actually keeps the stators alive longer. If not I will just keep using the much cheaper aftermarket stator.
Tom
Salem Or.
'93 K1100LT w/Bushtec
'03 F650CS '09 F650GS
Bigger fuel tank would be nice
Anthony S.
2008 R1200RT and soon to be delivered 2012 R1200GS
The size of the tank doesn't dictate when I take a brake .
But I like having a lot of leeway about when I have to fuel up. I don't like limited fuel capacity to limit my decisions on what routes to take.
Under normal conditions I'm sure 4 gallons is adequate. I just wish it was at least 5
Anthony S.
2008 R1200RT and soon to be delivered 2012 R1200GS