the 916 engine will bolt in as the mountings are the same. there is no clearence issues but the swing arm will not fit. the 851 crankcases have an extra piece wich has bearings pressed into it. the 916 doesnt so the only way to do it would be to use a single sided or a 999 arm wich uses its own bearing system or fabricate the missing pieces onto the 916 engine.. the best way would be to keep the 851 cases and install the 916,996 crank shaft piston and heads. the 916 heads flow more than the 851 heads.... i once mated a 916 top end onto a aircooled 900 monster 2v bottom end and used an elctric water pump
Quote:
Originally posted by 851neil
Ok, another project I'm starting - but has anybody here fitted a 916 motor to an 851 frame ??? if so would you mind if I picked your brains - ta very much...
you know - p7 to p8, single to twin injectors, did fitting twin injectors have a major affect on the airbox, who made up spacers & bearings and did the machining on the 916 cases etc etc....
and no I don't want to sell the 851 and go buy a 916  |