Old fashioned injectors (atomizers) in the 4-108:
They need to be overhauled every 400 hours as per the service
The engine will run with more than double that on the injectors but don't expect stellar starting performance and no-smoke.
As for starting with full throttle, then bring it back when the engine fires...?
The excess fuel
may wash oil
of the cylinder walls and cause premature wear. I try to start with minimum throttle, but after I adjusted my idle down to 600 warm to avoid any shock on the tranny, it takes a little bit of throttle to get it going.
Thought of a high pressure pump overhaul
a few years ago, in case that was the problem, but the engine seems to run fine, 30 years old, but with a 1985 overhaul
, so no HP overhaul needed yet...The 4-108 seems bullet proof in my book. Would get another one in a heart-beat..Rock solid.