Gefr, i know i replied to your query on my thread that i never had any issues with voltage drop on the toyota fuel pump retrofitted into the stock assembly on my 990 but now that i think of it, my dual battery setup might have had a hand in this. It might have prevented the loss of pumping capacity when the radiator fan kicked in.....
'07 KTM Adv990S - Gone to a good home
'10 KTM 530Exc-Rally
No myriad hues of laser lights, no bottles that are oozing with nectars from heaven
No beautiful body soft and warm to the touch but, i have a very small desire
Give me a dark... long... winding road, three gears to go and my Hellas on fire !!