Hi all, I've been using this forum for the last month to try and figure out for to get my 1983 Brat GL running. I recently rebuilt the Ea81 it came with and swapped the hitachi carb for a Weber (new). There are some rust issues with the car but the engine is in great shape. I've got the engine back in the car and it'll fire up with starter fluid sprayed straight into the carb. Tuned the fuel mixture, set idle, timing, etc.
Now the issue is, if I detach the fuel line going straight to the carb and run the fuel pump, fuel comes out of the line and flows nicely. However, when I attach the fuel line to the carb and run the pump, it's like there is no pressure at all. No fuel runs through the forward fuel/vapor filter. I hear the pump running but fuel doesn't fill the filter.
Could it be an issue with the float? Or possibly the Weber filter underneath where you attach the fuel line? Or a pressure issue? Do these carbs need a return line? Would really appreciate everyone's ideas and replies in advance. I've worked with the carb on my motorcycle (dr650) but other than that I don't have too much experience with carbed Subarus.