Just had this same problem on my 84 aero nb50m! The throttle cable was not allowing the needle and piston to seat all the way down. I had to shorten the housing by about a 1/4 inch and carefully remove the metal casings around the cable itself. Let it idle and set your air and idle screws ...
Replaced the air filter with an original from Honda. Found the needle
to be bent! Seller sent me a replacement needle and valve. The original
carb had 4 tubes this one has 5. Was told that has an extra breather tube
Got a new carb for an 84 aero 50 and she still races....once I cover my hand on the carb she idles well..................new bistarter, petcock, *owner) plug, gas.
new air filter , cannot get her to idle properly, when I put on the rear
brake she does idle down.
Just removed my muffler and it is full of fuel.......trying to drain it all
out at this moment. Seems to have a hard time draining. Would be
ok to put oven cleaner in it? Or just be patient and let gravity do its
thing?
Thanks for the reply so fast........ the aero started and ran but idle was way up there. All set screws were closed. I opened up the air mix to 1 1/2 turns and adjusted the idle. Then it died and started right up and thats when I noticed the fuel out of the exhuast.
Am buying an 84 aero tomorrow.....what did you find out as far as part availability? My local honda dealer has most parts for it. Can you send me pix of the speedometer? Have you been able to get the mph listed on the speedometer to match? Have you found a downloadable service manual for ...