T595 Not Starting?

Are you assuming injectors not working because no fuel coming from them? Listen with make shift stethoscope (screwdriver to component & then ear) to injectors clicking/firing as engine is cranked. If they are clicking then the solonoids are working (does not mean internals are working properly) might be an idea to source a 2nd hand test injector. When you remove an. Injector from fuel rail are you getting fuel spillage under pressure having just cranked engine, if not there could be a couple of causes

 

Ok so we know the bike is firing the injectors. However without using a known good injector you cannot eliminate faulty injectors.

 

You will have fuel pressure of at least 2-3 bar so be careful. If injectors not firing that pressure will remain constant until you release an injector or coupling.

 

Are you able to see inside throttle bodies in order to see any fuel delivery whilst cranking?

 

Robbed from a rival forum have a read sounds like your problem

http://www.triumphrat.net/speed-triple-forum/223436-1999-speed-triple-wont-start-4.html

 

About 4 posts down blocked return valve???

 

Fair advice, leading me to previous queary, do you have fuel pressure inside fuel rail. If pressure regulator is faulty there will not be enough fuel pressure at injectors