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Home Forums TaG Rotax Max No bottom end power Reply To: No bottom end power


Bruce Woodrow


Once you have made sure that the power valve is moving freely, you can check that it is closing by removing the exhaust from the cylinder ‘socket’ and looking in through the exhaust port – the blade of the valve should close off quite a lot of the port and be pretty close to the piston when the power valve cover and spring are fitted.