Russell
The extra duty should make you happy,,it will pay for the paint job and some mods
As for the stalling,doesnt sound good,,Im glad that your going to sync the TB's,,jinks put up an awsome step by step,,He's not the 1st guy to mention the super glue on the vacum lines,,lol so have a few feet on hand,he even gave the correct diameter....Good point up stairs[about rolling back slighty on the throttle while turning it over] ussually witha FI system thats a big no-no,,,,but the manual says to do it when you experience hard starts,,turn it over THEN roll back gentle and slightly,,,
as for the oil light,, any vehicle that either you hit the brakes to hard sending the oil up front momentarily will cause the light to come on,,Ive not seen that on the busa tho,,I know you didnt hit the brakes,,but it stuttered falling on its face while hitting a gear,,and the light came on,,,My perspective on this is this,,,Either [a] your filter/screen/pickup tube is clogged from extended high mileage oil changes,,for which by reading your post I doubt,unless the guy b4 you did,,,,
weak oil pump....more reasonable diagnosis,,,and [C] the bike,may have a sensor that will shut the bike off when low oil pressure is detected to safe guard the engine,,This is very probable,with you mising a gear and the bike lunged backward [ I presume} ,,There are alot of cars that have this safty device on them from factory,,I do not know if the busa does,,but it is one of the most sophisticated bikes Ive seen,,,,But Thats one thing to be sure to monitor,,alot of guys run 10-40 conventional and the manual calls for it and in hot index 20/50,,,,,,,,Also it should be denoted that more riders are useing synthetic ,,,IMO experinece,,a higher weight in hotter index will harvest a higher oil pressure thru the main bearings
