Yamaha has rolled out a recall for the XV95C in the United States. Due to an error in the casting process, there is a chance that the crankcases of the engine block are porous and can therefore leak oil.
In the past British, American and also Italian bikes were often said to have more oil under than in the crankcase, and Japanese bikes were the epitome of quality, so it’s ironic that Yamaha has a recall in the US. have to roll out for the XV950 because there is a chance that the block will leak oil.
What is going on? In summary information provided by Yamaha to the National Highway Traffic Safety Administration, Yamaha said it discovered in June 2021 that the crankcase injection molding process had introduced an excess of release agent into the molds, causing them to cool too quickly and causing porosity in the molds. carters arose.
In the molding process, the amount of release agent was then adjusted to maintain the optimum mold temperature, solving the problem. Release agent, dissolved in water, is applied to the mold to ensure that the molded product does not stick to the mold.
This means that in the US 233 engines now have to be returned to the dealer, where the crankcases will be inspected for porosity and oil leakage. If an oil leak is discovered, it will be repaired by the dealers.
– Thanks for information from Motorfreaks.