Still chasing a staring issue on my 1980 85 horse.
Issue:
When cold, I can pump up the primer bulb and feel/hear the float bowls filling up until the bulb gets firm. Chokes stay fully closed with cranking, but the engine will crank all day without starting if I let it. If I squirt a little gas directly into the carb throats, and then hit the chokes and crank it, it will fire up within a few turns. Once the engine is warm, it will start up with just a turn of a key with no issue.
I recently replaced the reeds with a factory set, fully rebuilt the carbs (pulled all welch plugs, blew out/cleaned passages, checked float levels, etc), and did a full link-and-sync. No change in starting behavior. I thought maybe there was an issue with with the ignition switch dropping voltage to the ignition while cranking and chokes activated, but I checked the ignition voltage with a meter while cranking and while it does drop a little, it never drops enough to cut out. Compressions are 130, 135, and 135.
The issue appears to be fuel related. For some reason it seems cranking with the chokes closed is not pulling gas into the cylinders.
Anyone have any ideas?
Issue:
When cold, I can pump up the primer bulb and feel/hear the float bowls filling up until the bulb gets firm. Chokes stay fully closed with cranking, but the engine will crank all day without starting if I let it. If I squirt a little gas directly into the carb throats, and then hit the chokes and crank it, it will fire up within a few turns. Once the engine is warm, it will start up with just a turn of a key with no issue.
I recently replaced the reeds with a factory set, fully rebuilt the carbs (pulled all welch plugs, blew out/cleaned passages, checked float levels, etc), and did a full link-and-sync. No change in starting behavior. I thought maybe there was an issue with with the ignition switch dropping voltage to the ignition while cranking and chokes activated, but I checked the ignition voltage with a meter while cranking and while it does drop a little, it never drops enough to cut out. Compressions are 130, 135, and 135.
The issue appears to be fuel related. For some reason it seems cranking with the chokes closed is not pulling gas into the cylinders.
Anyone have any ideas?