YT175 carb problems,

[JB-Man]

Seems I cant get it to idle, for very long, any questions,

also it is unreliable in starting, sometimes needing to be pulled, and once it is running, it will die after about 30 mins, and seems to want to die if i give it gas?????:wtf:

please help

[250sx]

have you rebuilt the carb? also check the intake boot (assuming it has one, I've never looked at mine up close) for cracks or other air leaks.

[dads]

Is the air cleaner clean?

[JB-Man]

yep, been rebuilt, and the air cleaner is brand new, when it is running,(a miracle) dad and i have tried to tinker with it and get running properly,

[Merriman]

I'm going to throw this out there.......

Since this happens on 250sx's every now and then, check your gas cap, to make sure it is ventalating(is that even a word?:shrug: ). They do have the vent on the gas cap right? Anyways if no air is flowing through the gas tank, then the carb can't suck fuel out, causing it to die after a few minutes, and making it hard to start. Also check to make sure your fuel line, and petcock are not obstructed. Once you make sure your fuel delivery is right, then check for air leaks. Spray carb cleaner around the connectors on the carb. i.e. airbox boot to carb, and carb to intake boot......do this while it is running and it if starts to rev higher than normal, then you've got an air leak in that area that needs to be fixed.

Hope I helped.

[jenndnn3]

Are you sure its actually the carb??......

Check timing, spark, compression,,,

[dads]

is the clip on the needle set in one of the center groves?
is the pilot screw set at 2 out. and did you put the o-ring and washer in the pilot screw hole under the spring? "sucks air"
:confused:

[bigred110]

I have the same kind of problem with my 175. Check to see if your fuel pump is located nere the gas tank. I got mine to far from the tank and pump and was getting air pockets in it and not pumping out gas. So check the fuel pump out, and it's vacum operated.

[JB-Man]

thanks for the input, im gonna spend all day today goin through it

[JB-Man]

talk about some chit, i pulled everything apart, and put it all back together, still didn't run,

out of options, i turn the petcock to reserve, and what do ya know, fired up on the second pull!!!!!:wtf:

so does know how to clean a petcock???

[dads]

you have to pull it of and blow air back through it to get the crap out of it. I use a carage bolt to remove the filter screen from the tank. they come out hard because of rust.