Wur raises..no contact with stopper?

[Highnote1]

My Wur raises when warm pretty close to 10mm…hat is above the arm but the arm does not pivot all the way to

the stopper. What gives? Could

someone have adjusted the stopper screw and messed all this up?

Edited January 15, 2023 by Highnote1

[dlacey]

More likely the spring is missing/stretched or the pivot point is gummed-up. In the warm situation, can you reach-in and push the arm (AKA enrichment lever) until the screw hits the stop? You should be able to easily 'waggle' it against the spring pressure...if not: what is stopping it? any mechanical obstruction?

[Highnote1]

I can tilt it down (back) but not up towards the front for some reason. Spring is under there…”late style” but not sure if it’s got any guts left. 

[Highnote1]

You did it! Back of arm was hitting screw end of hose clamp for pressure relief valve! Fixed!

[Highnote1]

And …now I have surging at idle?? Wth!

[dlacey]

9 minutes ago, Highnote1 said:

And …now I have surging at idle?? Wth!

The position of the enrichment lever (once warmed-up) defines the full-throttle mixture and then the idle mixture is set in the tuna-can....so if the lever was stuck, then the full-thottle would have been very rich and your idle mixture leaned-out heaviliy to compensate......so now, with the lever in the 'right' place, the idle is far too lean - causing surging. Time to go thru the blue book re-tuning of idle.

[Highnote1]

Here we go! Thanks man. Makes sense. 

[resra]

9 hours ago, Highnote1 said:

Here we go! Thanks man. Makes sense. 

You are becoming a Tii specialist in the process.