jmckelvy wrote:
MM49 wrote:
I always replace the anti-tamper fuel pilot screw with a service screw. Then you can address the root cause; a lean condition. The Honda Eu series generators use an emulsion jet well design. The fuel and air are mixed before they get to the actual jet. This makes the adjustment very insensitive. All of the Honda generators that I've worked on needed to have the fuel pilot richened up. Honda is required to set them up very lean to pass all of the regulations in the markets they sell. The performance after setting the pilot richer is notable.
I wouldn’t recommend Sea Foam in the Honda fuel systems. There are many different types of materials used in the system. It is a******shoot guessing if Seafoam will react with them at variable temperatures.
MM49
Hi, the fuel pilot screw has an anti-tamper cover on it. The cover is retained by adhesive.
I first try to loosen the glue by slightly heating the cover with solder iron. Then I try to remove the cap. The screw has a relief in the shaft that will break if it is bent. If the screw breaks just order a new one from the dealer. The remaining screw can be backed out with a dental pick. Install the new fuel screw in the carburetor and set to 1.5 turns out. Install carburetor and test. If you still have the surge, remove the carb and richen 1/2 turn out. This adjustment is very insensitive. It might take 4 - 8 tries. Final test the generator should be fully warmed up. This takes at least 30 minutes under load. The result is well worth the work.
MM49
