carb's not getting gas !!

Hi,
I have a set of 29 smoothboress that don"t seem to get gas when cranking !! unless I cover the part where the air cleaner"s go with my hand ! any help would be appreciated !!

bishop wrote:

Hi,
I have a set of 29 smoothboress that don"t seem to get gas when cranking !! unless I cover the part where the air cleaner"s go with my hand ! any help would be appreciated !!

Do they have a choke? Covering part of the intake bore is exactly what an old fashioned choke used to do.

make sure the petcock isnt plugged with tank sediment.

Also, make sure your fuel lines arent clogged ahead of the fuel filter.

Also, make sure the tank is full of gas, this will hinder the carbs getting gas the most. :whistle:

I have a new pingel petcock & new fuel lines & a half tank of gas !! I had the carb"s rebuilt in 2005 while the bike was down, never put them on till 07 ( ran into major health problem"s ) I had the head redone , so I figured nows"s the time to try the carb"s

As everyone else said, make sure your getting plenty of gas into the bowls but from what you describe sounds like you need to check out your enrichement circuit (choke) Not getting the rich mixture it needs when cold, is that when you have problems or is it even when warm?

Have you pulled them apart since the rebuild,in 05?

The little voice (the one we never listen to,lol) in my head kinda thought the same thing Sandy. Would be worth a little look see.

Hi
I didn"t think to pull them apart they were never used since the rebuild by a pro !! & never had gas in them And were still in the box !!

Post edited by: bishop, at: 2008/03/08 23:01

First things first...are you SURE that you're getting fuel TO the carbs,from the fuel line,where it connects to the inlet on the carbs?

Go in there with a 17mm wrench and loosen off one of the bowl caps on the bottom,and see if you get fuel seeping out of that cap.Remember that there is an oring on that cap,so make sure you don't pinch it if it falls out of it's groove when you retighten it.
Do that on all 4 to see,before pulling the carbs off the bike(make that the last resort).

Maybe there was some residue in those carbs when you shelved them,and maybe now you have varnished or gummed-up internals?

Check those caps and let us know...

bishop wrote:

Hi,
I have a set of 29 smoothboress that don"t seem to get gas when cranking !! unless I cover the part where the air cleaner"s go with my hand ! any help would be appreciated !!

If not already doing, pull choke lever all the way up, and leave throttle completely closed (do not touch the throttle) while attempting to crank up a cold engine.

The enrichener circuit is designed to function with the throttle completely closed.

Good Luck!