1991 Honda Fourtrax 200 Type II leaking oil.

Hello
I have a 1991 Honda Foutrax 200 Type II that is leaking oil from the left side crankcase, there is a bolt that comes thru the crankcase that looks like it has a seal under it, the oil is coming from around this seal. It looks like this could be a place for recoil start to have been mounted from what I’m told. I don’t have a repair manual for the machine so my question is. Can I remove this bolt and replace the seal without having to completely disassemble the motor? I don’t want to remove the bolt and hear parts falling down inside the motor. I have looked at a parts diagram on bike bandit and I cannot see this bolt on the diagram. Any help or suggestions is greatly appreciated. Thanks.