On direct inlet cylinders such as the Malossi 136 or Quattrini M1L, the original inlet on the crankcase has to be sealed. The laser cut locking plates from the PRO SERIES are perfect for this task which are available with highly accurate MRP both for the crankcase with 2- (V50) and with the 3 hole (PK) attachment.
Conclusion: It's a fact: This is an elegant option for tightly sealing the intake on the crankcase.
SIP-TIP: Order the inlet manifold/engine gasket (e.g. part no 78543000) at the same time.