I just bought a rotostart and installed it. It starts the truck trhe first few times but then something starts slipping after I run the first tank through it. If I disassemble and clean everything like one way bearing and all rotostart components it will work right again. I looked when I had it apart the the litle pin that goes into the crank and fits into the one way bearing shaft looks like it has been slipping. How could I fix this. Thanks Matt