weber carb throttle sticking

recently installed a weber carb on my b2200, ran fine for a while, now the throttle sticks (or at least that what it seems like) intermittently. sprayed lube on the linkages and the cable. sometimes it seems like it works, other times not so much. the high idle is very annoying, and i don't think the engine likes it either. could it be a malfunctioning electric choke? that should be a constant power feed right? best way to diagnose?

I've also had this on my Weber. Yes, I also cleaned all the linkages, and it was not the accelerator cable that was sticking. How I fixed mine: I added a stronger throttle/accelerator return spring, the one supplied with the Weber kit was horribly weak.

Mine attaches to a small mount (can use an S-hook) mounted to one of the EGR bolts. Check auto parts stores or Ace Hardware for springs, not like my leg gets tired now, not that stronger of a spring needed. The one I'm actually using I got at Ace, spring #99U (UPC 039008101062, 2 3/8 long x 7/16 o.d., 0.40 wire gauge). Yes, I also carry a spare spring....

Weber carb installation tips genuine Weber K675 kit

I installed mine about 6 years ago, and I've heard some of the issues I had with my installation have been addressed. Check the adapter surfaces for straightness, and "sand" straight using wet/dry paper on a sheet of glass, to help eliminate vacuum leaks. Instructions are included, use blue Loctite, correct torque, and also use gasket sealer. The electric choke plugs into the rear of the alternator like the stock one.

From then:
My comments about genuine Weber K675 kit for Mazda B2200 1988 (Weber 32/36 DGEV) from my own installation about 6 years ago; note that some of the issues may be corrected by now.

Buy some extra 5/32 inch vacuum hose for stuff like the distributor vacuum advance, and some vacuum block-off caps (or use vacuum hose and golf tees). Some have suggested better quality vacuum caps can be obtained at Summit Racing.

Buy a new throttle return spring at the hardware or parts store; the one supplied is weak. Ace Hardware spring #99U (UPC 039008101062, 2 3/8 long x 7/16 o.d., 0.40 wire gauge). The little plate with two holes in it is to mount on the engine for the throttle spring bottom attachment.

Instructions detailed a 6mm hex/allen key being required for the adapter screws; actually, it was a 5mm hex key required, and I cut down a 5mm L-shaped hex key with a hacksaw to use in my 5mm socket so I could use my torque wrench to get 12 ft-lb of torque like the instructions stated.

Bottom adapter plate needs to be ground away around the intake manifold PCV inlet, best if a bench grinder is available; there is a picture showing this, why couldn