1990 Suzuki GSX-R 750 L regulator/rectifier

SOURCE: owners manual required for a 1989 suzuki gsxr 750 RK model

I've got a service manual for a GSXR 750F

Would that help?

Let me know.

SOURCE: 1996 Suzuki GSX-R 750 T

they will more than likely fit but doubt that it'll run smoothly

SOURCE: suzuki gsxr 750 does not start sparks batt ok,

Hi and welcome to FixYa,

Initially, perform below tests:

• remove all the plugs and spray starting fluid (or fuel) on all cylinders. Return the plugs and try again. If it fires even just a few times, then fuel is not entering the combustion chamber;
• loosen/remove the drain screw at the bottom of the bowls. Check for the presence of fuel (and also determine if there are sediments, rust or foreign matter). If there is no or little fuel, then fuel is not entering the carbs;
• if your fuel control/valve has provision, turn it to PRI. With the drain plugs still loosened or removed, fuel should flow out of the drain hoses (pls ensure that it is properly channel to a catch/holder and ensure other safe condition/practice).

SOURCE: my suzuki gsxr cuts out after 6000revs whilst on the road

sounds like carbs

SOURCE: Colours for gsxr 750 suzuki

the paint codes are available in the parts list for your bike. The parts list is available many places on line. Finding the paint is more difficult, one source is Colorrite.