2premo
Husqvarna
Pro Class
Its not a timing or jetting issue, the PVL has to be spun over fast to make spark. I had a '77 Penton 400 with one and it started fine because the KTM primary gearing spins the engine over 5-6 times per kick so you get great crank speed. I have one currently on my '70 440 Maico and its like a 430 Husky, the kicker spins the engine about .75 rotations per kick. Its a nightmare to start. I have them on several Sachs engine 100-125s and they are great, but that engine's kicker also spins the engine very fast. My cousin had a PVL on his '74 Mag, bump started easy, would NOT kick start. The PVL requires too much RPM to reliably generate a spark to be used on any bike that does not a kicker that spins the engine over fast. The MZ-B, while a good bit more expensive than a PVL, generates spark at very low cranking speeds, even lower than a Motoplat.
I had one on my 360 it started fine