I just bought a 1991 907 installed a new fuel pump and i cant get it to start its been sitting for 10 years. what tells the injectors to work thanks

you need to give us more info. What does it do and what doesn`t it? What have you tried and checked so far ?
There`re several other topics about non starting bikes like the most recent just a few below this one.
After 10 years I hope you changed the belts before attempting to start it.

G.

when you turn the key on you can here the fuel pump for about 5 sec then try to start it and it turns over but wont start . it will run on starting fulid witch tells me its not getting fuel. like the injectors are not working

If the fuel lines from the tank are the wrong way round there will be no pressure to the injectors.

Did you get the new fuel pump from Merlin Motorsports?
I bought one of their, excellently priced, fuel pumps two years ago. I failed to notice that the large and small pump terminals ( + & - ) are the opposite way round compared to the original pump. When I first tried it, the pump ran backwards, which seriously interfered with my attempts to start the bike .

Don't run your bike on starting fluid while trying to sort this out. Not good at all for the engine.

done and running the injectors were stuck now for sale

Where in this wide world do you live? I might be interested.

Northwest Indiana the bike has 5900 miles u can email me at prostock360@gmail.com

Wow! 280 miles a year !!!!!

Can we see some pics ---- won't be buying but would be nice to see.