A kit of parts to complete a top-end decoke includes M014, M016, M019, M020, 'C' Clip and Squish Test.
Refer to the Vittorazi Maintenance Manual for detailed instructions.
O-Ring head gasket/seal. It must be replaced every time the cylinder head is removed after a heat cycle, as it creates a flat spot or signs of head leakage and won't recompress when re-torqued (16Nm).
Head nuts M019 need to be replaced after removal. They are one-time use, acting like a "nyloc" through a deformed profile, lost after heat and removal.
One piece of solder to measure the squish requirement between the top of the piston and cylinder head for Moster (1.35 - 1.55mm).
Solder can be reused; however, after each test, trim the deformed end with a clean cut from a razor blade. Do not use pliers or scissors, as this will deform the end and give a false reading.
Complete the squish test using sacrificial/old nuts until the correct value is achieved. Then, use new head nuts when complete.
NGK BR9ES Spark Plug with a solid top/Core (not screwed on).
Solid Top/Core spark plugs are used in high-demand situations where reliability and performance are essential.
Suitable for all Vittorazi engines.
Add our Sparkplug Gap Tool, which is marked in-house at 0.8mm for accurate setting of the required gap. Beware of cheap counterfeit NGK Plugs being sold as original.