Long drive killed engine? Carbs check out

Sounds like your engine runs very lean on the pilot circuit. Are you sure your jets and needle holder tubes ( main jet ) are clean and not clooged.

I'm fairly confident I did.
I took all the jets, holders, pipes, what have you, out and shot carb cleaner through them, then air compressed all around, and repeated that twice; so everything got it three times.
Then I checked to make sure I could see through them, so I can clean it again I just don't know if that would even do anything.

That's what I was hoping was the problem because that would be most obvious.
I guess since I have nothing left to lose I could try and clean them...again...

Does anyone think I should up the washers to two on each side?
I don't quite understand knowing how many washers to put on the needle to adjust for aftermarket exhaust (they don't make a rejetting kit for my model, at least that I've found)

Have to ask, are you sure you got the right jets size in your carbs?

Yup, checked the numbers against what is in the manual the first time I cleaned the carbs after getting the bike about a year ago.

Currently going to do some vacuum tests on the diaphragm...that could be a cause. Hope it is!

Don't check fuel flow with the engine running. ...or even hot. Just pull the fuel line off the carbs and put your petcock on Pri. You can check to see if it's getting into the carbs by dropping a bowl. Again, turn it on Pri and see if you have fuel flow.

Update: Vacuum checks out fine.

I guess me checking the float level is the same as that test then because that is the same process.
Turn to prime.
Loosen overflow screw.
Look at the level that comes out.

Anyway when I did the vacuum test the fuel was running great. Sucked on the vacuum line and them clamped it to hold that vacuum and the fuel line was running into a gas tank. Basically emptied the whole thing, so it is definitely getting fuel...and the vacuum is definitely working...and I cleaned those carbs like crazy if read above...

Now it doesn't make sense what is preventing the fuel to go in!

Going to check the compression test next I guess, I don't know. Out of my knowledge.
Just trying to think about what else makes sense for an engine cutting out with the slightest amount of throttle give other than a fuel issue

I wonder if the slides are hanging open? When you start the engine, they are down. The first blip raises them. When the second blip comes along, the slides are already up, so there is not enough velocity to pull fuel through the pilot system. With the engine off, push each slide up gently. Do they move smoothly and easily? Do they drop smoothly and at the same rate, keeping in mind that the diaphragm will not let them fall as quickly as gravity would like?

The slides look like they check out OK...I posted another video in that shared drive folder.
I move them up and let them fall, sorry the angle isn't the best, then I do that compressed air test too.
Here's the link again for convenience:
drive.google.com/open?id=1hneKAU0InmQpRXjkxnXeU-ssfqZkYvoa

newkzrider18 wrote:
took all the jets, holders, pipes, what have you, out and shot carb cleaner through them, then air compressed all around, and repeated that twice; so everything got it three times. Then I checked to make sure I could see through them, so I can clean it again I just don't know if that would even do anything.

Did you cleaned these holes in the main jet holder pipes and pilot jets too?

Do the thumb test on the slides.
Steve

Thumb test checked out; they're good!

I did make sure to clean those, but I have no shame cleaning the entire carb for the 4th time. Might as well, I'll be excruciatingly thorough...

I once had a problem with a sticky float. It would close and then stay closed. The gasket would hold it up in place. But it was only one float out of four.

If you have another set of carbs you might try switching them to see if the problem persists.