Narrowed it down to a FUEL PROBLEM

[locust17]

1981 cb750C

I found out that my bike isnt turning on. I tried spraying some fuel and hear it trying to turn on and figured out no gas was entering the carbs.  I completely removed the fuel filter as it appeared to be pinched. And it made no difference. I noticed the petlock only allows fuel to come out on RES. I don't know whether to remove the carbs and take a look at them as i previously took it apart, replaced the jets to stock settings and showed no visible signs of clogging. I don't know whether tightening the jets too much or too little affects it but my next guess is inspecting the petlock once again, and checking out the accelerator pump on carb 2.

I need some advice thanks!

[TOOLS1]

Tightening the jets does not have anything to do with anything other then keeping them from falling out into the bottom of the float bowel. First you need to have fuel going through the petcock, down through the fuel line to the carb inlet. Then the float needs to be low enough that the needle valve opens off the seat to allow the fuel into the float bowel. Then when the fuel level in the float bowel gets to a specified point the float should have risen to where it closes the needle valve onto the seat to stop the flow of fuel into the float bowel. At this specified point the jets should be submerged in the fuel, so that the engine vacuum sucking air through the carb will siphon a metered amount of fuel through the jets to be mixed with the incoming air. Somewhere along this line fuel must not be getting through to the engine. And the accelerator pump only squirts a small amount of fuel into each carb as you twist the throttle off idle to about 1/4 throttle. You should be able to see it squirt when you twist the throttle by looking at the rear of the carbs while twisting the throttle.
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[locust17]

 I removed the fuel filter and connected the line directly I also checked the pet lock to see if it was clogged but it was fine. So it's not the lines and it's not the pet lock. I tried spraying fuel directly into the carbs and it sounded like it was finally gonna turn on. So I figured there wasn't any fuel in the carbs. So I next checked the carb drain screw and it began to drain so then now I know there's fuel in the carbs. Where should I inspect next?

[locust17]

I also have this post on another forum and one stated it might be clogged slow speed jets what do you think? I bought a carb rebuilt kit previously and hope to have them available.

[TOOLS1]

Plugged jets would have been my first thought, but I was under the impression that they were new jets from a kit. In order to clean these jets, you must remove them and run a small wire through them. I use a guitar string. Most music shops will have a bucket of used strings and be happy to let you take a handful.
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[locust17]

Thanks I will do this next!