Grinding out the right result

Invasive surgery required to remove old 250/400 mounts and line-up the 500 engine

Mark Graham

The time has come to begin the real work and go beyond the point of no return: grinding off the KH engine mounts to fit the new H1 mounts. A lot of metal has to be ground away. The H1 plant is a tight fit. After a bout of “Are you absolutely sure?” “Yes.” “Really?” we set to with the angle grinder. It’s vital not to accidentally gouge parts of the frame tubing with grinding wheel, which we almost avoided during the process of removing enough metal to get the engine sitting in the right spot (the fine finishing will be done with the frame shorn of front and back ends). For now it’s a case of rough removal of the front lower mounts and swingarm gussets so the engine can…

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Practical Sportsbikes (Digital) - 1 Issue, May 2018

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