Posted by Tom Fleming on February 25, 2008 at 03:22:48 from (209.195.155.84):
In Reply to: CRANK SAFETY posted by RODGEinIL on February 23, 2008 at 06:02:24:
Cup your hand, with your thumb along your fingers. Only crank on the "up stroke". Use short, quick up-strokes. As soon as the crank is nearing 11 o'clock on the up stroke, back off with your hand. For the F-4 mag, make sure the spark advance is only about 1/4 to 1/3. I also keep graphite powder on the pully where the crank engages ( or on the extention in the case of the F-20, H, etc.) BTW, this is for you right-handed folks like me.
On the older mags, make sure the impulse is set on the mag. On the older mags, sometimes you will get a "pop", and no start. It is important to check the impulse coupler BEFORE you attempt to crank again. On the mags older than the F-4, you need to set the impulse. when you get a pop and no start, you need to set it again.
A couple of other things I was taught by an old timer, the first one always applies.
1.) before you turn the ignition on, put on the choke, open the throttle to about 1/2. turn the engine over 1-2 times. Then turn the ignition on (or unground the mag). Then use the above method.
2.) For tractors that have a distributor, and easy method for starting in cold weather. Coils operate on voltage. When you use the starter, the voltage drops dramatically. Lower voltage, lower spark output. In cold weather, I will crank start any of my 6 volt tractors using method outlined in #1. By using the crank instead of the starter, you get "hotter" spark, due to no voltage drop from using the starter motor. I have actually tested this, and it works every time (that is if your ignition components are in good condition). My success rate using this method is darn near 100% starts on the 2nd crank, and always a pop on the first.
One last note, placement of the "arm not in use" is also important. I haven't been "bit" on my cranking arm, but I have been "bit" on the other one. I had my left arm on the rad housing on my F-12, while I was cranking with the right. Old girl "popped" in the wrong direction. Right hand was fine, but crank bit me on the left wrist. No broken bones, but was sore as hell for 2 weeks.
I am sure that others have slightly different techniques, but this has worked for me over the years.
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