Yamaha has issued a global recall for the most recent generation of the CP2 parallel twin platform, the MT-07, case scenario could lead to a crash.
Yamaha has discovered that the clutch on the 690cc CP2 parallel twin may not fully release. There is then a risk that the motorcycle starts moving from a standstill with a gear selected, even though the clutch lever is cut, which could cause the driver to lose control of the motorcycle. For example at the start.
The problem arose due to the properties of an anti-corrosion agent that a new manufacturer of Yamaha clutch plates has been applying to the metal clutch plates since December 2022.
When the anti-corrosion agent mixes with clutch friction plate material, a viscous substance forms under heat while driving. This causes the clutch and friction plates to stick together, preventing the clutch from disengaging properly.
This means that the clutch must be replaced on all CP2 models produced since December 2022. This involves tens of thousands of engines worldwide.
– Thanks for information from Motorfreaks.