79 special / carbs drawing air , cant stop it .

[1fasttrucker]

hay I have 79 xs1100 special took off stock air box cleaned carbs , put on new carb holders, install carbs and emgo filters I know all I can afford now)
the carbs #2and #3 wont seal where they go into the holders have new clamps and all dont get it ??? #1 and #4 carbs seal tight and pass the carb cleaner at idle trick and dont rev up the motor, but #2 and #3 carbs spray carb cleaner at the carb to holder joint and bike revs up ,

do I need to build a braket to hold the carbs up and more forward like the stock air box does ???

any thoughts???

[lee_dutcher]

sounds like u dont got them all the way into the carb holders. there is a little ridge inside them its got to go over. it took alot of grunting to try to get mine back on the judge

[DGXSER]

1st, it does sound liek you may not have them all the way into the holders, or your clamps could be out of the groove somewhere. Check that, I know its hard to see that on those middle carbs in some places.

As to your question about holders, I am sure soem may disagree, but I belive you do need to have a bracket to support the carbs from the back. I have seen a couple where they built a bracket that attaches to the frame where the airbox used to. Without the bracket, your putting to much weight and stress on the intake boots.

[TADracer]

Hate to tell you this but I would pull the carbs off again and check the interface between the carb holders and the head. That is a notorious place for vacuum leaks. Some guys use a gasket, others do not. Some use RTV, others rely on another type of gasket maker. But whatever you do, you should check this place.