crank starting an F20?

Bob M · Aug 19, 2017

Where should the mag timing lever be set to safely hand crank an F20? Then once the engine is running should the lever be set?

I have been tasked to fire up an F20 restored by a friend who passed last year, and am totally unfamiliar with operation of an F20.

Thanks! ...Bob M

farmall pete · Aug 19, 2017

Turn the timing advance cap on the mag all the way down, then back it off a hair. This is fully retarded and minimizes possibility of kickback. With mine, half throttle, 2 pulls with full choke, third pull with half choke starts it in warm weather.

farmall pete · Aug 19, 2017

After it's running, adjust the timing advance lever until the engine sounds smoothest.

BruceS · Aug 19, 2017

don't follow this. rotation down is advanced unless im misinterperatng what your saying.

farmall pete · Aug 19, 2017

You're right Bruce. Got it opposite.

Bob M · Aug 19, 2017

Thanks all for the guidance!

Had to pull it to get it to start the first time (stale gas in the carb bowl?). But it ran well, and I successfully crank started it again a couple hours later.

F-Dean · Aug 20, 2017

I agree with Pete.

Set your timing so that "All the way down" is the "Sweet Spot." When starting, lift the Mag cover up 10-15 degrees to "Retard" the spark -- it fires later after TDC. After it starts, rotate the mag all the way down (Clockwise from driver's seat) back to the Sweet Spot.

BruceS · Aug 20, 2017

ok. thanks.

crank starting an F20?

Bob M

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farmall pete

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farmall pete

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BruceS

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Bob M

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BruceS

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