I am not sure, But I thought you could ride for about 3 to 4 hours on a standard "D", With no charging ? Cheers Bill.
Depends on battery and coil, but you're probably right. I use an 8 Amp/hr battery, so I ought to have about 3 hours, D coil ignition probably less demanding. Electrics not my strong point, but it may also depend on speed - "Sorry officer I was trying to get home before the battery went flat"
H
H