ATHENA Cylinder Base Gasket for SUZUKI RM 250 1986-2018

ATHENA offers this cylinder base gasket for SUZUKI RM 250 1986-2018. The base gasket sits under the cylinder, on the crankcase. Crushed when tightened, it cannot be reused: replace it every time the cylinder comes off.

Why does the thickness matter?

The benefits:

• The OE thickness keeps the cylinder height intended by the manufacturer.
• Another thickness lets you correct piston-to-head clearance after machining or adjust the port timing of a 2-stroke.
• A new gasket keeps the bottom end sealed against oil and gases.

Why choose ATHENA?

Athena, founded in 1973 by Giovanni Mancassola near Vicenza and based in Alonte (Italy), designs gaskets, pistons and cylinder kits; it supplies original equipment to manufacturers such as KTM, Ducati, Fantic and Triumph.

When should you replace the base gasket on your SUZUKI RM 250?

Every time the cylinder comes off: piston change, top-end rebuild or cylinder inspection. Oil or mixture seeping at the base of the cylinder also points to a tired gasket.

No manufacturer figure in hours for this model. Cross-Mania guideline: compression check every 20 h of hard use and every 40 h of leisure riding.

Specifications and fitting tips

• Manufacturer part numbers: S410510006104 (OE), S410510006156 (0.10 mm), S410510006157 (0.20 mm), S410510006158 (0.30 mm), S410510006122 (0.40 mm), S410510006155 (0.50 mm)

Choose the thickness from the list. "OE" is the factory thickness; another thickness is used to set the cylinder height after a rebuild (piston-to-head clearance, port timing on a 2-stroke).

Cross-Mania tip: Choose the OE thickness if the cylinder and head have not been machined; if in doubt, measure the squish with solder wire before final assembly.

Spare parts and items to plan

• Top-end gasket kit : PROX · ATHENA
• Piston : VERTEX · PROX
• Piston rings : WISECO · VERTEX
• Coolant : LIQUI MOLY 1 L · TWIN AIR

Compatibility

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

Fits:
SUZUKI RM 250 2018
SUZUKI RM 250 2017
SUZUKI RM 250 2016
SUZUKI RM 250 2015
SUZUKI RM 250 2014
SUZUKI RM 250 2013
SUZUKI RM 250 2012
SUZUKI RM 250 2011
SUZUKI RM 250 2010
SUZUKI RM 250 2009
SUZUKI RM 250 2008
SUZUKI RM 250 2007
SUZUKI RM 250 2006
SUZUKI RM 250 2005
SUZUKI RM 250 2004
SUZUKI RM 250 2003
SUZUKI RM 250 2002
SUZUKI RM 250 2001
SUZUKI RM 250 2000
SUZUKI RM 250 1999
SUZUKI RM 250 1998
SUZUKI RM 250 1997
SUZUKI RM 250 1996
SUZUKI RM 250 1995
SUZUKI RM 250 1994
SUZUKI RM 250 1993
SUZUKI RM 250 1992
SUZUKI RM 250 1991
SUZUKI RM 250 1990
SUZUKI RM 250 1989
SUZUKI RM 250 1988
SUZUKI RM 250 1987
SUZUKI RM 250 1986