Crankcase Breather Hose, Now Fuel Pump

[rocketbrick]

Will do!

Yeah - sorry for the lack of detail. I think it might need to be bent into place a bit more, it doesn’t really lock the connector in the port. It stays secure, per se, butI’d appreciate a better latch.

I’ll check those out!

[Laitch]

You might not be shoving the cord end of the plug firmly enough into engagement to trip the latch into closing. If it's secure enough that the plug cannot be swung outward in an arc from the cord end, it's secure. Verify that the plug's opposite end is hooked into position.

[frankenduck]

The ICU (Ignition Control Unit) is the black box mounted right behind the steering head. It controls the spark and the L-Jet controls the fuel.

[rocketbrick]

Got it - I bought the Deoxit and I'll check the integrity of the connection on the jettronic computer today. I do have a spare computer also, and when I swapped it out to that spare previously, the same problem persisted. Let's see what happens this time!

[rocketbrick]

Latch is swapped out, we're getting a solid locked-in connection now. I'm going to follow Johnny's 123 guide on no start once I get the DeOxit in the mail tomorrow. In addition to what was written here, obivously!

https://youtu.be/DpZyZdLsswQ?si=jnomG4MaEnzKwtUn

[rocketbrick]

GENTLEMEN!

In my endless quest for answers, I found the solution - the airbox flap was stuck closed, and the airbox hose not making any contact. Lubed all and replaced with donor parts where necessary and we're in business!

I'm sure the K appreciates all of the fuel system overhauling that I put it through, because it now runs like a top.

Thanks for all of your help and direction - without all of you, I wouldn't have even known how to diagnose whether it was air-related or not. I do feel pretty dumb for not checking into that issue, first.

[Laitch]

In my endless quest for answers, I found the solution - the airbox flap was stuck closed, and the airbox hose not making any contact.

Are you referring to the vane in the air flow meter/sensor and its hose connection to the air intake plenum?

[rocketbrick]

That’s correct - it sounds much more intelligent when you say it 

[Laitch]

It isn't "more intelligent," it's descriptively accurate. I'll send you a gift certificate for an extra-large Morse Farm maple creemee with jimmies of your choice if you can explain exactly how this situation created a non-starting condition. 

Incidentally, it could be too early to start the party. Give it a few hundred miles. 

[rocketbrick]

 :wink:Tomato tomato.

I wish I could tell you. I put pressure on the hose pushing toward the throttle bottle, and it roared to life. Let it go, and it stalled. 

[Laitch]

 

[rocketbrick]

The hose is replaced and secure now, so we’re in a constant running state. I’ll update the thread in a few hundred miles (if we make it that far!)