i HAVE A 150 Hammerhead twister 150 , trying to replace the starting clutch, Question is how do i get the spanner nut off, is there a special tool.If so where can I get it.

Thanks, Rich

 

call these folks, they may be able to help you out.

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buggynews.com or buggymasters.com has people the most knowledgeable about that motor.

 

Buggynews is a great place. I've never been to buggymaster.

There are numerous full blown GY6 engine service manuals available for free. Have you looked at those?

I have a GY6 engine on my quad. I've never had to do anything other than adjust the valves after 4 years and 2500 miles +. So I have no experience here.