Triumphrat

cat · 04-18-2006

hey guys. i put on a new pair of amals last fall on my 70 bsa lightning and they ran great last fall but this spring the right side leaks. the new amals have a plastic drain bolt i think i stripped and over -tightened. has anyone experienced this?

thanks,

cat

KADUTZ · 04-18-2006

where is the leak from?

[ This message was edited by: KADUTZ on 2006-04-18 18:15 ]

cat · 04-19-2006

i can't tell really. i thought from the drain plug but i noticed gas leaking out of the spin on air cleaner. could this mean stuck float?

cat

GrandPaulZ · 04-19-2006

Sounds like you may indeed have a sticking float needle.

cat · 04-19-2006

it looked ok when i took the bowl off. maybe i'll trim the a wee bit off the bowl gasket. i've done this on the old set. any tips?

cat

OzBloke · 04-19-2006

I had a similar problem, with floats sticking when priming. a very slight trim of the inside edge of the gaskets, plus a fine file over the "dags" of plastic on the float itself cured the problem for me.
Pete

cat · 04-20-2006

pete,

forgive my ignorance, are the dags those prongs that the needle fit into?

thanks

cat

OzBloke · 04-20-2006

Cat,
The "dags" are the extra bits of plastic hanging out from joins, corners, etc of the float, left after the moulding and joining of the separate parts of the float. Good idea NOT to play with the needle holder tounges/prongs.

Dags in actual fact are the bits of $h1t hanging around a sheep's rear end - we won't go into how I know this.

I apologise for using the vernacular.

Pete

danbike · 04-20-2006

I had the same problem with two new Amals on a '69 Bonnie. Turns out that the combination of trimming the gasket along with making sure that the float bowls are not UNDERSIZED fixed it. The float was hanging up on the gasket where the undersized bowl pushed it into an interference fit.

Easy to fix, once I figured out the issue.

TRI-AL · 04-21-2006

I had the same problem with new carbs. Wound up useing the OLD metal pins & OLD floats. They were "looser".