My experience mirrors Omatako,
Little bitty Yanny on a nor'sea 27. The dudes batt fried. I (not a big guy) and two really big guys about died from exaustion, but coundnt get it to pop. It is to be said the little bugger did have compression release but the flywheel was pretty much non-existant.
Those volvo's have a good size flywheel and that might help. But for the most part.... just forget hand starting.
OH yeah, I miss the kick starts on bikes too.