Interesting to hear it’s ok to start. I asked because I have a 1970 utility that was originally fitted with an impulse starter which someone has adapted to the Victa 18 style manual wind pull rope. The spinning exposed pulley doesn’t thrill me in terms of safety and it tends to catch on bushes when I give it a bit of a run.
I have a couple of options with it, take the impulse starter off a spare, excellent condition, mid-60’s Corvette engine and shroud assembly I have kicking about, or adapt it to take one of my several early 70’s zip starters.
I might try the zip starter if the absence of a decompressor doesn’t cause a problem.