Have cleaned out the carb,have cleaned both jets and am not sure if this has had a negative effect,do thet need to be turned in all the way until they seat.what about the black screw on the outside of the carb how is this to be regulated.
SOURCE: klx 110 2006 stalls when choke is pushed in
i'd say the carb is gummed up especially the pilot jet (#16158) in this pic of the USA carb. may have to remove the carb & bowl and then remove the pilot jet (w/ flat head screw driver) and clean out the tiny holes.
http://partsfinder.onlinemicrofiche.com/atlanticcycleandpower/Kawasaki_OEM/KawasakiDB.asp?Type=18&A=39&B=17&Action=O
-OR-
the carb slide is installed backwards (turned 180 degrees). its #16025 in the pic. i've done this before on my daughter's XR70 and Z50. you'll know if its this when you move the choke lever, RPMs increase and decrease.
hope this worked for you and was fast enough.
SOURCE: 2005 yamaha yzf 250-unstable idle
I had the same problem, Turns out that my shims were finished, replace the chims and check clearences.
SOURCE: re jet carbs? any help?
if you rejet the carbs. i would maybe take a plug reading. it sounds as if you might have gone too rich and the plugs began to foul. but a good plug reading will tell alot. if they appear to have a good tan color i would take a look and make sure no hoses are being pinched causeing a fuel starve problem.
fyi. if you just put on an aftermarket exhaust. sometimes you wont need to jump up in jetting that much. stay around the stock jetting and maybe shim the slide needle up a hair with a tiny washer. that usually puts you close. unless an elaborate aircleaner system and very high flow exhaust.
SOURCE: 81 xj650lh midnight maxim black exhaust, sooty plugs keep fouling
hi,fairly common problem with modified exhaust,start with the pilot screws,turn right in untill the screws are firm then back out 1 and 3/4 turns,this is a fairly standard rule of thumb that will get most things going,as far as the jets go,the original size would be a good starting point,but you should only need to go up 10-15 sizes to compensate for the exhaust mods(ie stock might be 127 may need to go to138 or 140 etc),the other thing that i would recommend is getting hold of a set of damped carb balancers these will enable you to get the mixtures and carb balance dead right,they are relitively cheap and easy to use and will have paid for themselves the first time you use them.(i regularly get 4-8 sometimes 10-11 extra hp over stock by tuning the carbs up properly).hope this helps
SOURCE: TTR-125 Won't Start
unscrew the four screws on the bottom of the carb (be ready some gas will drain out) then you will see a goldish looking screw. unscrew it that is your jet
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