5 hp B&S carb overhaul and adjustment

Hi,

I presume there is already a post somewhere that would tell me about the carb on a 5HP "Fun Power" B&S engine? It is on a go-kart and it is probably 20 years old. Is there any adjustments on the carb other than I presume the idle mixture? I have to give it a shot of carb cleaner to get it started cold even with the choke on full. Then it always wants to die when it comes back to idle. Now it is also dying at full throttle. It seems like it just runs too lean at idle and at full throttle. I replaced the diaphragm recently, it had been bad for a while so it wasn't running recently. Obviously cleaning the carb will probably help the idle, I cleaned it several years ago with only modest improvement, it still had to have choke cleaner to cold start and it still wanted to die coming back to idle. Even with the engine warm it was hard to start without some choke. I am a pretty experienced mechanic on large engines but am not very familiar with the carb on this engine, where should I look?

Thanks,
John

5 hp B&S carb overhaul and adjustment