When Brian Crighton brought the Norton name back in 1987, it was essentially him, former Manx GP winner Dave Hickman, Dave Evans and Malcomh Heath - Heath rode the bike initally as well and it ran it red, blue and silver colours. This colourscheme was kept for 1988 when Trevor Nation and Simon Buckmaster rode it - Steve Spray and Andy McGladdery also had outings on it, both winning races.

JPS came in from 1989-1992 with the riders being:
1989 - Spray, Nation and Steve Cull.
1990 - Nation, Spray and Robert Dunlop for the roads
1991 - Ron Haslam, Nation and Robert.
1992 - Haslam, Robert with Terry Rymer replacing the injured Haslam. JPS didn't sponsor the road effort though - Robert was sponsored by Hymac/John Kennedy with Hizzy of course on the white Abus Norton.

In 1993, Duckhams took over as title sponsor with Colin Seeley as team manager and Jim Moodie the sole rider. 1994 saw Ian Simpson and Phil Borley taking over rider duties and of course went on to finish 1st and 3rd in the British Superbike Championship.

There was also the Roton 588 that Crighton developed when he was, briefly, left out of the main Norton set-up. This had a blue fairing and riders included Australian Grant Hodson and Spray, who got a pint at the 1991 Australian GP at Eastern Creek.

Apologies if I've missed other riders out!

I can't recall ever seeing a Norton in orange and yellow colours.