YPVS Loses Position(?)

[m in sc]

time allowing i can def help. I think an m4 or m5 set screw can be used to repugnant it, correctly,  after its tapped. DO NOT re seal with jb wrld or a golf tee. ask how I know. (no i didn't do it)

[SoCal250]

DO NOT re seal with jb weld or a golf tee. ask how I know. (no i didn't do it)

 

[2steve]

I'm just hoping to find the smoking gun, probably in the left carb.

[2steve]

Got the dingle ball out of the spare carb body. That orifice is quite small. Easy to see and clean. Pressed in brass jet, looks like.

Drives me nuts that I can't figure out where it's getting its air feed from. There's some 90 degree passageway coming in from absolutely nowhere before the orifice. If that is clogged there's no apparent way to get to it 

Anyone know?

[m in sc]

spray thru it see where it lands
i think its supposed to go back up to lines that go tot he stock airbox but i may be thinking of 400's

[2steve]

Found it in the extra carb body.
Yes, must have gone to the original air box through a tortuously routed passage and tubing.

I'm gonna cap that passage off and leave the air jet hole at the mouth open. Looking at the RZ as it sits right now, those holes are wide open to suck dirty air. It was traveling on some dusty roads before I got it.

Looking in that hole on the side, I was convinced it was a blind hole till I sprayed carb cleaner in and it and nothing sprayed back out.

[m in sc]

I know that works on 400s and lcs, so should be fine on the rz.

[2steve]

I know that works on 400s and lcs, so should be fine on the rz.

And I appreciate your take on that. Gives me a little more confidence.

[2steve]

Revised the photo. The feed for the air jet is also the bowl vent.

After some thought, I won't cap them externally, but try tying them together so the will be some "capacitance."

'Cuz I'm an expert

[m in sc]

as lomg as they have access to atmosphere its fine

[2steve]

Clear now in both carbs. Hoping that is opposite of what the left side was, but once you drill through the brass ball, it's all a mess in there.

[2steve]

as lomg as they have access to atmosphere its fine

And there's the question. Only real access to atmosphere is the pulsing racing air through the carb mouth. Not exactly quiet atmosphere.

Mikuni did make that available, but pounded a brass ball into it.
Am I overthinking?

Haven't gotten a chance to run it yet.

[m in sc]

on the 400s they leave it open typically.   worth a try. if it doesn't run right, thrn cap it.