[DAVID GAGNARD]

Ding,ding,ding, I think I've found the problem...........naturally, the one thing I DID NOT CHECK.............

Took off the throttle return springs and worked the throttle shaft back and forth, primary shaft has what I would consider a lot of play in it,not as much front to back, but a lot of play up and down.
Secondary shaft has about 1/3 that amount... I would consider this normal for the secondary shaft, but the primary shaft is way lose in the base plate, looks like a wear problem....

I checked some old Holley carbs I have in the shop and NONE come close to having this much play in the throttle shafts and some of these carbs are 20 years old!!!!!!!!!!!!!!!!!!!!!

I have a bunch of parts/spare carbs, thought I could swap out a baseplate, no go, most are vacum secondaries and they don't have the correct mounting for the mechanical secondaries, the primaries look to be identical.....

Guess next thing is to get with Demon and see what they say or can do, I imagine a new baseplate would be the quickest/easiets fix...

I do like the Demon carb, but the fact that it has this much wear in a short period of time ain't good........

David