Instead of searching for F4i do a search for CBR600F , they have the same banana seat. That was the UK name for the banana seat models , split seat like mine were CBR600Fsport.

Powerbronze do a rear cowl for yours which goes over the top of the seat for £60 (UKP)....

link: SEAT COWL - HONDA CBR600F 99-10 - Powerbronze UK International

 

Couple of pics of how the bike is looking now , just realised I added nothing but close up's of the cowl to the original post....




Dog loves to get in on the action , total poser...

 

nice i was looking at one of those rear seat cowls but was wondering how they fit. nice work