ATHENA Complete Engine Gasket Kit without oil seals for KAWASAKI KX 100 and SUZUKI RM 100 1998-2013

The ATHENA P400250850104 complete engine gasket kit is designed for KAWASAKI KX 100 and SUZUKI RM 100 from 1998 to 2013. When you open up the whole engine, every gasket removed must be replaced. The complete kit brings together the top and bottom end gaskets under one part number: cylinder head, base, crankcases, covers and exhaust, depending on the model.

Specifications

• Brand: ATHENA
• Manufacturer part number: P400250850104
• EAN code: 8055681304376
• Weight: 100 g
• Engine: 2-stroke

When to replace it?

• Oil seeping at the crankcase or cover joints.
• Coolant or oil leak after the engine has been apart.
• Gaskets hardened, torn or stuck to the parts on disassembly.

During a complete engine rebuild (connecting rod, crankshaft bearings, gearbox) or whenever the crankcases are split.

Fitting tips

1. Clean all the gasket faces without scratching them and remove any remains of old gaskets.
2. Fit the gaskets dry, except where the workshop manual specifies sealant.
3. Replace the O-rings at the same time: a crushed O-ring can't be reused.
4. With the cases split, also replace the crankshaft bearings and oil seals and check the gearbox bearings.
5. Tighten the crankcases and covers in a criss-cross pattern to the manufacturer's torque, then fill up with oil and coolant.

Why ATHENA?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Crankshaft bearings and seals : see the selection
• Engine oil seals : ATHENA · CENTAURO
• Gearbox bearings : HOT RODS TBK0035 · HOT RODS TBK0034
• 2-stroke oil : LIQUI MOLY 1 L · MOTUL 1 L
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• Spark plug : NGK R6252K

Frequently asked questions

Are the oil seals included?
No: this kit does not include the engine oil seals; order them separately if needed (engine oil seal kit).

What does the kit contain?
Depends on the model. Compare with your original gaskets if in doubt.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KAWASAKI KX 100 2013
KAWASAKI KX 100 2012
KAWASAKI KX 100 2011
KAWASAKI KX 100 2010
KAWASAKI KX 100 2009
KAWASAKI KX 100 2008
KAWASAKI KX 100 2007
KAWASAKI KX 100 2006
KAWASAKI KX 100 2005
KAWASAKI KX 100 2004
KAWASAKI KX 100 2003
KAWASAKI KX 100 2002
KAWASAKI KX 100 2001
KAWASAKI KX 100 2000
KAWASAKI KX 100 1999
KAWASAKI KX 100 1998
SUZUKI RM 100 2008
SUZUKI RM 100 2007
SUZUKI RM 100 2006
SUZUKI RM 100 2005
SUZUKI RM 100 2004
SUZUKI RM 100 2003