carb question

[timtim]

hello

I think my carb is not working right when i crank the engine over and check the plug the plug is not wet. i had cleaned the carb VERY well i uses a compresser and blow air thru the passgaes,jets,etc... my engine now has 150 psi compression and when turning it over i can feel the "sucking" when i put my hand over the carb. my question is what iam missing in the carb that is not making the gas go thru... i know my plug should be nice and wet right?

thanks

[79fordblake]

No, the plug should not be wet, that means it is flooding out. Make sure there is plenty of fuel in tank, fuel valve is on, good fuel line and good clean filter.

[timtim]

ahhh ok well i cant tell if its getting gas to the plug? it dont seem wet and yes to your question about fuel valve etc

[kariutta]

is there fuel in the float bowl?

[timtim]

last time i check yes there is

[timtim]

when i say i clean this carb i really clean it, took it all apart clean everything! the plug should be alitte wet right?

[79fordblake]

Gas should be getting to the plug unless the float and needle is stuck in the up position in which case gas will not go into the carb.

[timtim]

when i blow air thru the passages i could feel the air coming out thru the holes in the carb body if that make sense

[timtim]

maybe the plug is alitte wet and i cant see it? its a brand new plug

[timtim]

ok i there is a bass tube at the front of the carb if i put my hand over the carb and crank on the engine gas then i get some gas

[79fordblake]

You should be able to blow air through the inlet of the carb when the float is in the down position and shouldn't be able to blow air through the inlet of the carb when the float is in the up position.

If the carb is getting gas the engine should flood after a few pulls with the choke on unless it starts.

[timtim]

hummmm ya and if it floods of coruse plug would be very wet hummmmm in which case its not very wet when the choke is on hummmmmm

[timtim]

i have the engine on the bench with the gas tank and yes gas tank is above the engine! But i have the throttle valve off ( top of carb) that is still on the atv would that make a differnce? i know that has the high needle in it

[MTS]

What is this on??? and yes you need that Slide and cap in the carb To pull the fuel through.

[timtim]

its 1985 125M ahhhhh on the slide ok well that explains it damm it i wanted to test this on the bench to make sure its pulling fuel thr before i install the motor