Hi All, I'm at a loss. I have one carb ( off side front)of an IDA set up drawing on my syncrom' at a very different level. 2-3 vs. 12-14 on other three.Cylinders 1&2 do not appear to be firing even though a timing light indicates a pulse. I've done the following-
1. leak down test on cyl 1&2 -o.k.
2. took top off carb/jets and adj screw out and blew out carb
3. float appears to be working properly
4. made sure all holes appeared open in idle jets
5. have turned the adjustment screw from an initial setting of 3/4 out to 1/2 out and in. No difference although in did seem to drop the idle a bit.
When I blip the throttle the carb draws but not at idle.
Other carbs appear to be o.k.
Any ideas about where to look next?? regards, Jon