Excessive vibration from my Honda kicker

[Stryker]

I have a 2001 Honda 8 hp kicker that is shaking pretty badly recently. It starts fine and runs great but it shakes more then it should. I have tried everything I could think of to find the problem. I doesn’t shake at idle but as soon as I give some throttle is start shaking. It shakes just as bad in neutral as it does in gear.

Any ideas?

[GSD]

As a Honda 8hp owner these are a few of the fixes I've made for similar problems.
1. Spark Plugs replaced.
2. Fuel filter replaced,making sure a good tight fit.
3. Fresh gasoline in a clean tank.
4. Check filter inside if gasoline tank
5. Check fuel line connector O-ring for good seal.
6. Take carb. off and clean.
Good luck!