ATHENA Exhaust Gasket O-ring Ø38.70 x 3.55 mm for KAWASAKI KX 125 1987-2001

The ATHENA M753503870094 exhaust gasket is designed for KAWASAKI KX 125 from 1987 to 2001. The exhaust gasket seals between the cylinder or cylinder head outlet and the exhaust system. A leak at this point costs power, makes the engine noisy and covers the frame in black marks.

Key features

• FKM (Viton) O-ring, which handles heat far better than standard nitrile rubber (NBR).

Specifications

• Brand: ATHENA
• Manufacturer part number: M753503870094
• EAN code: 8051757182015
• Material: FKM (Viton)
• Dimensions: 38.70 x 3.55 mm
• 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. Fit the O-ring in its groove without twisting it; a little high-temperature grease makes it easier to push the parts together.
3. Offer up the exhaust without forcing it, fit all the fasteners, then tighten progressively.
4. Warm the engine up, let it cool down and check the tightness again.

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

• Top-end gasket kit : ATHENA S410250001054 · ATHENA S410250006
• Spark plug : NGK · NGK R6252K

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:
KAWASAKI KX 125 2001
KAWASAKI KX 125 2000
KAWASAKI KX 125 1999
KAWASAKI KX 125 1998
KAWASAKI KX 125 1997
KAWASAKI KX 125 1996
KAWASAKI KX 125 1995
KAWASAKI KX 125 1994
KAWASAKI KX 125 1993
KAWASAKI KX 125 1992
KAWASAKI KX 125 1991
KAWASAKI KX 125 1990
KAWASAKI KX 125 1989
KAWASAKI KX 125 1988
KAWASAKI KX 125 1987