my zx50 issues

[Shaka]

I don't think I ever posted pics of my leak-down tester.  You may be thinking of my compression tester.  You can't just go buy a leak-down tester either, it's gotta be made.  Actually, I take that back, Josh at SI sells them, but they aren't cheap!  From the pics though, I'd say you do have a leak.  It may also be coming from the cylinder base gasket.  Have you tried spraying carb cleaner in that area while idling to note any changes in rpm?  I'll try and get some pics posted up this weekend of the leak-down tester.

[wordslinger]

..i thought you did post one shaka!!

..i remember it...i think...

[wordslinger]

...said something like.."my 20 dollar home-made leak-down tester...

[thebatman]

hey, thanks word.....well i just sealed up the reed cage w/ the ported oem one, cleaned everything off...i tried going around the cyl. also... maybe thatll work. my pipe slings residue everywhere but thats the wrong side.. ....ny cyl bolts were tight, i did check but i guess that doesnt mean squat....            yeah, i thought he did too....idk...had a couple steel plates for carb/exhaust???

[wordslinger]

..i remember, and just saw the comp tester pic he posted...but i remember the leak-down pic too...can't find it tho..

..searched for over an hour....

[thebatman]

well sh**, that was a hell of a search.....maybe he will pop back in soon..    surely we both arent wrong?

[thebatman]

oh.. i almost forgot, several times when i have unhooked my fuel line, itll pour the gas, sometimes it wont. whats up with the diaphram under tank and vaccum? i remember seeing about vaccum for something.. of course this p.m when i took carb off to reseal, it poured gas..

[wordslinger]

..vaccum opens the fuel valve...

if you have a semi-collapsed vaccum hose, that manifests itself more at a high rpm, that might cause the fuel valve to close...starving your carb...

[thebatman]

oh im not having an issue..i had just unhooked line when i took off carb...sometimes it would pour gas till i plugged the line, sometimes it would be dry as hell..it poured today..didnt know if that should be a concern or not.

[wordslinger]

..i would reckon that would be relative to what state the valve was in when last shutdown...

..were you revving or idling..

..just a guess...

 

[art]

 It should shut down on most at the petcock(vacuum activated) if it dont clean that petcock,could lead to other problems if sitting for any time. Fill your crank full of fuel for one.

[thebatman]

hey guys, yeah i was idling whhen i shut off, but i do have a habit of giving her a slight rev, then shut it off.. idk if that makes a difference or not.....                     oh yeah, also on the zx fan shroud..the left side has an opening, from the factory was there a cover on there? it looks like maybe one screwed on that side, woyldnt know why, cant get access to anything...could be a custom way to make an air intake.  

[art]

  Some of them have a small rubber boot with an opening to let air in or out  with a bend to help keep foriegn objects out.
  I don't know if the xz is like the people but the petcock has a small paper filter that screws into the bottem cap I woould check this asap. Once you remove vacuum there should be no flow if you have this filter I would remove it and put one inline somewhere.(AND CLEAN)

[thebatman]

     i must be lost, i have a inline fuel filter...... the vaccum box is a round metal cyl diaphram lookin thing...   one line is fuel, one is vaccum??

[art]

  Some of them have a small rubber boot with an opening to let air in or out  with a bend to help keep foriegn objects out.
 

I was refering to the shroud you spoke of.
 Does the bottem of your petcock unscrew,there is a filter in there also if it does.