ATHENA Exhaust Gasket for HONDA CR 250 1985-1991

On HONDA CR 250 from 1985 to 1991, the ATHENA S410210012027 exhaust gasket fits in place of the original part. At the junction between the engine and the exhaust, this gasket has to cope with very hot gases and vibration. Crushed or hardened, it lets gases escape: noise, spitting and loss of power.

Specifications

• Brand: ATHENA
• Manufacturer part number: S410210012027
• EAN code: 8051757152285
• Weight: 50 g
• Engine: 2-stroke

When to replace it?

• Black or oily marks at the exhaust outlet.
• Spitting, a leaking noise at idle, backfiring on deceleration.
• Gasket crushed, brittle or burnt on removal.

Every time the header pipe or expansion chamber is removed, and as soon as a leak appears.

Fitting tips

1. Clean the gasket seat on both the engine side and the exhaust side.
2. Offer up the exhaust without forcing it, fit all the fasteners, then tighten progressively.
3. Warm the engine up, let it cool down and check the tightness again.

Why ATHENA?

Founded in 1973 near Vicenza, Athena is an Italian engine gasket specialist that has made its gaskets on its own production lines since day one, as well as a renowned manufacturer of pistons and cylinder kits. The brand supplies original equipment to manufacturers such as KTM, Ducati, Fantic, Piaggio and Triumph, and is a partner of the MXGP motocross world championship.

Spare parts and items to plan

• Top-end gasket kit : ITALKIT 860VG810259 · ITALKIT 860VG810257
• Spark plug : see the selection

Frequently asked questions

Can I reuse the old gasket?
No: it crushes and deforms as it heats up. A new gasket costs little and prevents a leak.

Compatibility

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

Fits:
HONDA CR 250 1991
HONDA CR 250 1990
HONDA CR 250 1989
HONDA CR 250 1988
HONDA CR 250 1987
HONDA CR 250 1986
HONDA CR 250 1985