My friend just picked up a 1981 Husqvarna 430cc race bike. Kick start only, we know for sure it runs but neither of us can kick start it, we just don't have the weight. Now he's only 100lbs, he doesn't have a chance in hell, I'm 170lbs and I can still stand on the kickstart without it turning over, and it takes a lot out of me to get it to even turn over once. We tried to tow start it but the wheel just locked up. Like I said, we know it runs because the person who had it before drove it to my buddies house but he was 350lbs.
Any hints on starting it up without a decompression valve?