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hi, thank you  for your reply, but, due to the lack of info/advice from anyone else, i didnt try to fit the gy6 variator parts. my zx is running fine. replaced original carb to 1 from a peugeot speedflight & upgraded from 80 main jet to a 86 . fitted k&n style cone filter. & it runs a lot better now. still not "on the road" yet. as now have other projects.   best regards. steve.

hi, my m8 has gifted me a brand new gy6 qmb139, 50cc ? complete variator kit. will this fit my 99 kymco zx50 ? it looks the same. but id thought i would ask 1st. thanks guys. steve.

hi,found some o rings worn out, & quite a bit of corrosion/dirt. just could not get the zx to run very well after electric choke switched off. so bought & fitted a replacement carb  to the zx today. from a north east uk breakers yard. came from a daelim 50. seems to work fine.but is fitted with a 75 main jet, while the zx carb has a 80 as standard. any problems with leaving 75 jet in ? otherwise i will change it.. regards, steve.

hi, the sealey  1 litre portable motorcycle fuel tank arrived.  filled it with fuel, rigged it up diirect to scoots carb with new fuel pipes. ( blanked off carb vacuum pipe) still exactly the same problem.  runs ok on electric choke,until it warms up then revs slowly drop until engine cuts out. !  then i removed  carb, cleaned out float chamber ( a bit dirty) cleaned jets again, set pilot/ mixture screw 1 & a half turns out,( as per kymco info) now idles for 4or 5 minutes. revs still up & down a little, but  better than before. cuts out now & again but at least starts 1st time with a kick. cant take it out on the street to give it a good run as  it  has no vehicle ( roadworthy test) certificate, or road tax.. still think its got to be the carb  ! ! seen  new complete carbs on ebay @ £18.  its now 8.30pm gonna have another go at it tomoorow. best regards, steve.

hi, re, the zx, £40 project !  possible carb problems?. having been off the road for 10 years. i have cleaned the jets,& blown thru the carb with a air gun ( 24ltr compressor)   removed& flushed fuel tank /pipes. fitted new plug,air filter, fresh fuel,2 stroke oil, and the scoot starts 1st kick ( starter  relay u/s) then after a minute or 2 the revs go up& down , and it stops.( sometimes will bog down when trying to rev it,)with quite a bit of blue smoke . most times it will not restart .unless its left for a couple of minutes. possible bystarter ?  carb jets ?  or replacement carb. any advice guys. thank you. steve.

hi, guys, thank you for the advice & info. for my zx. have been given a ( chinese, taiwanese & korean scooters. from 50 to 200cc) haynes workshop manual  so covers lots of different makes. the guy ordered 1 from ebay, but they sent 2.  time to get my toolbox open ! thank you again. very best regards. steve.

hi, the zx  fever is a 50cc two stroke scooter.  factory re-stricted to 30mph for the uk  market.( honda dio clone ) ? i have looked on youtube. but cant see the oil plugs other scooters have.. steve.