If your running high level exhaust headers like myself, you'll know that the standard sumpguard will not fit!
Well here's another option!
I've used a 2nd hand sumpguard from an xt600(43f model manufactured 1983-1989 see first pic)which I sourced on ebay(�15).The bottom end of that engine is very similar except for the 660's waterpump,which does'nt really get in the way.
There's only a slight modification required to get it to fit, but if you get stuck give me a shout and I will help you all I can.
I think this is the nearest you will get to a factory fit for anyone running this type of exhaust,and it doesn't cost too many vodka vouchers either!
Good luck and happy spannering,and remember,CHANGE IS GOOD!!!!!

__________________