Lately my 50 has been idling pretty iridically, it'll idle fun then just raise up on it's own really high. To the point were you can't really put the bike in gear. I've tried playing with the idle adjustment screw on the carb but it'll just die once the idle goes back down. This happens all the time even when the bike is warm and cold. Also some friends have borrowed it for a while and the thing seems like it's really down on power since i've gotten it back, it barely wants to pull it up in second and not at all in third anymore. I'm assuming it's probably the carb but don't know for sure. Has anybody around had success with rebuilding their carb, or am i just going to need a new one? I also just pulled the plug and it was all fouled out and black. tia for any help

 

Clean the carb, and mess with the air screw a little bit, if the weather is changing it will effect the way it runs as well.

 

throttle cable could be routed or adjusted wrong. if u turn the bars does the idle go up?

 

Already tried playing with the idle screw, it's been doing it since the summer so i don't think it's just from the weather change. Also I already checked out the throttle cable and adjuster. Anybody else have any input

 

Check your ground and take apart the carb - main jet , pilot jet and clean them along with the float bowl

 

first off is it a stocker with stock airbox and carb
i love how people give advice without knowing what you have
no one should be able to answer this without that info
if its all stock i would say your mixture screw is off a lil that is what controls the fuel while it idles the black plug means it is to rich check you needle setting to rich will cause the probs you are talking about
the clip should be in the middle of the needle

 

z50nati, all carbs will have similar sympoms. also you cant say how the needle should be set. you also know nothing about the bike.

 

sounds like a vacuum leak to me

 

this cat posts up **** about all kinds of tech questions when he doesn't know a damn thing about a bike obviously. I was going to say along the same lines with five0 and fab. I ran into both of these problems and these two fixes worked for me.

 

My ct70 was doin the same thing he's taking about. Seemed to be that bolt holes on the intake were stripped causing bad contact with the intake and carb. Re-tapping the holes solved the air leak problem and ran like a raped ape.

 

what pisses you off more is i at least know more than you

 

for a stock carb and air box the needle clip is in the middle
no one reads what i say, i said IF
it was a stock set up, do you comprehende the word if
freakin stumps

 

yup, how mnay factors go into the tuning of the carb? ALOT more than what airfilter you got on!
chill

 

hey dude how your air filter is oiled will affect how it runs let alone what air filter you have. if not enough oil it will run lean getting to much air if it has to much oil it will run rich not getting enough air
quit trying to start some chit when you know not what you speak of
your a stump
either answer the guys question or shut up im trying to help the guy out
your just trying to start ****

 

alot more than you can name thats for sure
do you own a hygrometer i bet you dont and i bet youll have to look up what it is

 

and if its to rich it will idle irradically too

 

hahahaaa
impressive display, but your still proving yourself as a fool. you want some tuning factors? how about everything off the motor, where the bike is, temperatures, oils, timing...
i dont want this guy to follow your advice and not get anywhere. act like everyone before your advice is wrong because it doesnt matter what components are on the bike, they were giving general advise that will work no matter whats on the bike. LAYOFF YOU FOOL!
hahahhaaaa!!!

 

yeah ima fool
so you figure out what the meter is and what its for
didnt think so
like i said,you havent said one thing that will help the guy out your just trying to look good by raggin on me which doesnt bother me at all
whats the point gap on a k-o 50? when degreeing a cam where do you put it for advance? how far is to much? what is the optimum temp for a 50 motor at the plug? answer those they are all simple simon questions,well?
read what he typed the plug is black its to rich, which will have less power
dont beleive me turn the choke on while your riding it will instantly fall on its face and blubber

 

hey Z50NAT, does anyone that you know of make a cam sprocket with adjustability for degreeing the cam? i cant find any for the life of me so i've decided to make a few. sorry to butt in to the arguement. carry on boys.

 

i love how people give advice without knowing what you have...
the clip should be in the middle of the needle..
read what you said!!!!!
seriously! WTF!
you gave advice without knowing!!!!!!!!!!!!!!!!!!!! your just text to me too, fool!

the plug is black, that doesnt mean anything. do you know if he did a proper plug chop? NO!
simple simon questions? hardly.im not a z50 guy. its not a drag racer its a stock fourstroke hahaaaa

turn on the choke while riding hahahahhaa ok hhaaaahahaaa





im not ragging on you, read what you type!!
relax and stop acting like your not bothered.