I recently switched to a single-carb setup using the VW Type 1 EMPI 34 PICT-3 carburetor and it ran GREAT for about a week and just suddenly stalled and won't restart.
The housing for the choke was noticably warm, and the bike would only start with the throttle all the way open and then would go from barely starting to revving up like it should to stalling out within about eight seconds. A couple of times it also backfired a cloud up through the carb. It had previously similarly stalled out whenever I took off too fast from full stop, which I'd initially thought was the lack of backpressure from an air filter affecting the vacuum advance (I was on my way to get an adapter for the air cleaner I bought when it died just now). Now I'm thinking that the problem is that I ran a wire from the battery instead of my problematic accessory terminals on my fuse blocks (in the RAINDEAD thread) without realizing that this meant the choke and air-cut-off would be getting 14.5v when running instead of the regulated 12v and that I've cooked the electronics in it.
Is this a possible explanation? I know it's not the rain issue because it ran fine in the rain for the past couple of days, ran fine thismorning, and sat in the sun all day while I was at work. I didn't have the tools on me to pull the spark plugs and confirm spark, I'm going to swap the old carb back in tomorrow morning so I can get the bike home for more thorough check. I know the voltage going to my ignition coils is too high and the resistor's shot, but it's been running fine until today, and before the new carb whenever it misfired it was out the tailpipe.
Basically my two questions are:
Is it normal for the choke to heat up during normal operation?
Can 14v cook the choke and/or air cut-off over the course of a week?
The housing for the choke was noticably warm, and the bike would only start with the throttle all the way open and then would go from barely starting to revving up like it should to stalling out within about eight seconds. A couple of times it also backfired a cloud up through the carb. It had previously similarly stalled out whenever I took off too fast from full stop, which I'd initially thought was the lack of backpressure from an air filter affecting the vacuum advance (I was on my way to get an adapter for the air cleaner I bought when it died just now). Now I'm thinking that the problem is that I ran a wire from the battery instead of my problematic accessory terminals on my fuse blocks (in the RAINDEAD thread) without realizing that this meant the choke and air-cut-off would be getting 14.5v when running instead of the regulated 12v and that I've cooked the electronics in it.
Is this a possible explanation? I know it's not the rain issue because it ran fine in the rain for the past couple of days, ran fine thismorning, and sat in the sun all day while I was at work. I didn't have the tools on me to pull the spark plugs and confirm spark, I'm going to swap the old carb back in tomorrow morning so I can get the bike home for more thorough check. I know the voltage going to my ignition coils is too high and the resistor's shot, but it's been running fine until today, and before the new carb whenever it misfired it was out the tailpipe.
Basically my two questions are:
Is it normal for the choke to heat up during normal operation?
Can 14v cook the choke and/or air cut-off over the course of a week?