MY ZX50 O.E.M CARB TUNING

[thebatman]

the fuel filter? dam i just put it in yesterday(seafoam)....the filter is full of fuel...how can you even check flow since on a dam vaccum release??

[thebatman]

you were having this same issue last week before yours blew, correct?

[art]

  Actually  been haveing alot of little issues and That was the final outcome.I didn't shred it,  but something to look at is your driven side(to the variater) I have some play there I did not have before and once up to speed I think this was allowing air to get in and that was my reason for not beeing able to top  like i was before. I could still ride it but rather not have a complete meltdown. It will still do 55 mph just not worth pushing at the time.
  If you are tuned right it should still run,unless something has realy gone ,but you should have heard or felt something. I think your fuel is the key here. Empty the tank blow it out,go through the pet cock again and carb.
  On another note my generator had went out on me in the middle of this mess, so BASICS Must have the three ingredients to run SPARK,FUEL and AIR, If all this fails than you got a problem,but all this must be checked first and confirmed they work before you start a rebuild 

[art]

 Another thought the blockage could be in the tank around the mesh for the petcock or even one of your lines got to check close.

[thebatman]

what up guys???   well, i am trying to tinker with scoot...took of tank, recleaned, recleaned filter..looks good..lines are clear, fuel filter is clear and open............... tried to get more opinions thia a.m....... 1 was a carb issue, maybe upjet more?. may need to lean it out MORE?....... that kindof wigged me out...how would leaning more help?    2nd was that the bowl could go dry and needed that time to recoup..told to run and AS SOON AS IT HAPPENED, unscrew bowl screw to see if dry.......ok, if thats the case, HOW could you correct that except with a bigger carb???..... could that ported reed cage even be capable of such a feat?  if that is the case, just put oem cge back on so it wont suck all the gas???  how would the bowl even go dry to begin with??? being so small with a too big jetting, to much inflow of air???

[art]

  This is what happens when you change too much at once    I would go back to stock read cage and run in for a bit(assuming it will run) to make sure you have got the gas air and spark all in line and running fine    Once you are certain of that try the reed cage. One thing to keep in mind,I keep forgetting (that carb is small!!!). You may be at it's limmits!!!

[thebatman]

i wasnt doing to much at once....just changed rwed cage, went to upjet and whis started...     so its possible the carb is maxed with the reed cage?    hmmmm, ran fine that day i put it on..THEN i saw it was lean and started jetting

[art]

 Well you kinda got several varioubles going on. Seafom,vacuum,possible air leak, reed change and jetting. So i would put it back to your last known configuration that was working and go from there.

[sidthesloth]

I think the reed cage was a good mod but the carb doesn't seem to be up to the new flow, can you get a larger carb of one of those parts scoots?
Hey art, what if he tried restricting his airflow at the filter instead of changing the cage again, that might give a better idea of what is happening without going backwards? Hang in there batman, it sounds like you are going in the right direction with that reed cage.

[thebatman]

  well, yeah art i guess you do have a point there..didnt think about the seafoam, or fixing vaccum but now scotty(local shop,worked for scootervita) did tell me that by fixing the vaccum in the petcock that i actually hurt myself..... you wouldnt think by FIXING something that it would CAUSE a problem.....            hey sid, thats the problem with those scoots, they BOTH are missing carbs(s9 needs carb, cdi), so thats out of the ?... oh well, also the ppl and zx petcock are supposedly totally different.            you wouldnt think the flow would be that much greater with the cage, after looking at those intake openings on the case.   waaaay small opening there.. well after i seen a pic of a ported intake hole, its real dam small    cant stick pinky finger in oem opening, i dont even think a pencil would fit there..   bet my intake opening smaller than yours.

[art]

 That is a thought should work, the flat out dieing has me unsure whats going on, seems you need to handle that before trying to go to next step. It could be completly Unrelated to the cage. The fuel and vac is what i'm stuck on and it must be running with some reliability to test and know for sure..

[art]

 If the petcock has the same threads it will work fine from any other scoot,sometimes the threads are different. Here's is another thought try running with the gas cap off or loose,something I was going to try on mine before the bearing started to go.

[art]

Got to run catch ya later

[thebatman]

well last night, it did start after it sat a few... this a.m started 1st kick before i started tearing things apart.   wanted to get further but went and did a side job for sum extra cash(get to go see kiss this sat), so i didnt finish with the scoot, gotta have it tomorrow tho.       oh yeah, i dont think theres a wobble on the variator side, tried to wiggle it

[sidthesloth]

Are KISS still going? I guess you gotta keep the accountants happy.