Heated gear- less MPGs?

[ionbeam]

...apologies to all our readers.

Err, our discussion evolves between mc' & me. Jury is out about how the Gen II R/R works. At some point mc' and I need to sort out what the Gen >1 R/R is actually doing.

In the mean time, adding electrical loads to a generator (alternator) will push back on the rotating shaft and reduce power to the engine. But, if the FJRs of all Gen's use a shunt regulator like the confirmed Gen I, electrical load is independent of lower gas mileage and reduced engine power so power to the rider

 

[Knifemaker]

What was that about handling my crank?

I see the plot thickens here. I did post this here in "Other bike" as my question was not concerning the FJR but a Triumph Twin of unknown age. I did assume most bikes used the same system as per what the R/R does. Before my FJR I had a Kawasaki Vulcan 750, which I knew did simply ground out "extra" juice to ground.

Afraid to say I don't know if my Bonneville works this way. But my original thoughts that the stator is always outputting power and thus how it is used would not effect gas mileage. I can see that there would be the "hard to turn crank" thing going on, but it would be a constant load and not increase or decrease. (Other than changes to engine rpm)

I'm not sure how to bench test this question acurately other than putting a bike on a dyno and start plugging accessories in......

 

[dcarver]

"I learned the upgrade RR uses Mosfets, not diodes like the OEM RR, and will shutdown rather than burn out if design parameters are exceeded.

I learned the OEM FH012AA has been updated with a FH020AA."

Take a look at the specs -