MnSpring
Serious Thumper
Offline
Younger than most people my age.
Posts: 9345
Minn
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Well, pulling out the choke, did increase the RPM's but not as much as I felt was needed. And the engine, just did not, 'sound', the same. as it did when, 'just', increasing the RPM's not changing the air/fuel mix. But, perhaps their is something, that is not, adjusted correctly.
And this little, gismo, just raises the rpm, not change the air/gas ratio mix.
Used to be, one had a, 'choke', and a, throttle cable. (Extra, to a foot or hand operated one) So I guess I am just applying old learning. Think, Tractor, Truck, Combine (that was a pull type and had it's own ICE), and lawn mowers, garden tillers, snow blowers, chain saws, log splitters.
To start, all those items. Choke, (when it was needed) by temporary changing the air/fuel mix. When started, increase the throttle, and push in the choke.
Of course their are exceptions. I have a 'Pro-Line' out front Toro lawn mower. (a 16 hp Kawasaki). It starts, Every Time, with 2 pulls. (But only with choke on, no matter what the ambient temp is) Choke on, pull slow, then rewind, pull fast, and it starts. But, if I, try to start it, with NO choke, even when it is 100F, it may take 30 pulls. Soon as it is running, choke off, throttle up.
And when it is 0, and I start the Log Splitter, As soon as it starts, (5.5 hp Brigs, 3-5 pulls) I have to, 'feather' off the choke, while increasing the throttle.
Seeing as how, I didn't need any choke, (on this S-40) and didn't want to keep my hand on the throttle. I do this. Put the shim in, turn gas/key on, start. (two revolutions it starts), put on a helmet, and jacket, Coast down the drive. (rough gravel go slow), Then hit the Tar. At the Tar, I have taken over the RPM adjustment with my hand.
On the little XT-225, choking, (even when it starts without it, when above 50F) Significantly raises the idle speed. So with that one, it's gas/key on, choke out, Then when I hit the Tar, choke off.
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