ATHENA Exhaust Gasket for YAMAHA DT 80 1986-1993

On YAMAHA DT 80 from 1986 to 1993, the ATHENA S410485012005 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: S410485012005
• EAN code: 7899641839062
• 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 : CENTAURO · ATHENA
• 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:
YAMAHA DT 80 1993
YAMAHA DT 80 1992
YAMAHA DT 80 1991
YAMAHA DT 80 1990
YAMAHA DT 80 1989
YAMAHA DT 80 1988
YAMAHA DT 80 1987
YAMAHA DT 80 1986