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MXZ 600 year 2000

615 views 1 reply 1 participant last post by  danskool 
#1 · (Edited)
Greetings. Having trouble tuning sled. It seems we get a lean condition on idling. Like there is a vacuum leak. It will idle but all of a sudden she will rev up.. We removed and cleaned carbs. We checked carb boots and main seals.

Before all this started we discovered the oil reservoir was cracked and leaking oil. So we changed it. And now we are not sure of the vacuum line #16 in the diagram.. Where does it go? Also the port on the manifold directly under where item 16 that appears to be open to atmosphere. Is that supposed to be plugged? Anyone have guidance of where this hose goes and that port under it? Any pictures?

Appreciate any help you can offer.

Item 16 hose and suspect port is top left in picture if you can't make it out.
 

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#2 ·
We yanked out the fuel filter and carbs again the carbs are in the bucket soaking.
Any advise on what fuel pump rebuild kit to get? any part numbers or sources to purchase from ?
And lastly the vacuum line issue still.. Where does item 16 (the hose) go? and why is the port under it open to atmosphere. We don't understand it. With that hose disconnected and the port open, what is the purpose of that whole assembly and the wire connector ? I did some reading on it, Folks mentioned "air pump" What and where is that located and maybe I don't have one?
 
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