How long should engine need to be choked before it runs without choke?

[rockhopper]

Perhaps I'm cutting the choke off too early. How long should you need choke before cutting choke off? I flushed the carb and it still dies after cutting choke off.

[JOHN COOKSON]

Engine hot or engine cold?
It is normal to need brief or momentary full choke and somewhat increase throttle when you start a warmed up A4.
If the engine is cold it will need increased throttle and full choke to start. The idle and choke will be able to be decreased progressively over a couple of minuets. Then the engine should then idle normally. The length of time is somewhat dependent on the ambient temperature I've noticed.
The above assumes the ignition and fuel system are set or adjusted correctly.

TRUE GRIT

[rockhopper]

Okay, well tomorrow I will attempt to run it for several minutes so that it warms up. My biggest problem was I ran out of water in 5 gallon bucket after revving the engine up after about a minute.

Primed the pump and put my water bucket higher than the pump and it no longer had a problem pumping the water through the exhaust.

[romantic comedy]

I start with the choke and open it in less then a minute.

[tenders]

I open the choke gradually within a few seconds of starting, never over more than 10 seconds unless it's very cold (like 50° cold).

She's probably running a little rich, but it doesn't seem to have any meaningful effect and is worth a little fuel efficiency.

(Electronic ignition. Was similar with points too.)

[JOHN COOKSON]

Originally Posted by rockhopper

Okay, well tomorrow I will attempt to run it for several minutes so that it warms up. My biggest problem was I ran out of water in 5 gallon bucket after revving the engine up after about a minute.
.

Forgot to ask, is there a thermostat in the engine? The engine will warm up faster with a thermostat. At least that is the idea behind a thermostat.
Roger on the 5 gallon bucket. I was amazed how much water the little pump could move even at modest RPMs. Can you put a hose in the bucket and keep it running so the bucket never becomes empty?

TRUE GRIT

[rockhopper]

Okay, just got back home from spending the weekend down at the boat. I ran the engine on choke for about a minute (all it took give or take to pump through the 5 gallon of water in my bucket). Went and got 2 more 5 gallon buckets full of water, started it back up and cut the choke off entirely and the engine ran great. The engine will even idle at a very low speed and runs nicely.

As far as I know there is a thermostat in it, after running for a couple of minutes (had pumped about 20+ gallons of water through the FWC and exhaust) the engine was only running about 140°F and compared to last week my FWC heat exchanger was still cool to the touch. Last weekend with the low water flow the heat exchanger had gotten much warmer. So I'm glad to report things appear to be working out.