Weedwacker balancing

[SON OF PALEFACE]

How do you balance a weedwacker or chainsaw engine, without the flywheel fitted, [CH ignition or glow] i just ran a RYOBI 31cc and it shook a good bit at mid to lower revs. I found the flywheel to be heavy on one side , this must help balance the engine when fitted.:confused: :confused:

[BillH]

hmm, I never thought about that. You could use a weighted spinner