HOT RODS Crankshaft Bearing & Oil Seal Kit for KAWASAKI KX 125 1985-1987

HOT RODS offers this engine bearing and seal kit for KAWASAKI KX 125 1985-1987. The crankshaft and gearbox shafts spin on bearings in the cases; oil seals keep the oil in around the shafts.

What is this bearing made of?

Races and balls (or rollers) in hardened chrome steel, 100Cr6 type: a very hard steel that withstands the fatigue of millions of engine revolutions.

• Open bearing: unsealed, it is lubricated and cooled by the engine oil; clean oil is its best protection.
• C3 / C4 internal clearance: slightly more clearance than normal for a hot engine’s expansion; always refit the original clearance.
• Limit: it dislikes dust and old oil; running short of oil destroys it within minutes.

Why choose HOT RODS?

Hot Rods, the bottom-end specialist since 1993: crankshafts, rods, bearings and seals for a complete rebuild.

When should you replace the bearings on your KAWASAKI KX 125?

Unusual vibration, a deep knock that follows engine speed or play in the con-rod: the bottom end needs a rebuild.

The manufacturer publishes no hour interval for this model: have the con-rod play checked at every piston change. Cross-Mania guideline: rebuild the bottom end every 2 to 3 top-end rebuilds.

Specifications and fitting tips

• Manufacturer part number: K237

Cross-Mania tip: Heat the cases to remove and fit the bearings without forcing them, and replace the oil seals at the same time.

Also needed with this part

• Complete engine gasket kit : PROX · ATHENA
• Piston : VERTEX · WISECO
• 2-stroke oil : LIQUI MOLY 1 L 3065 · LIQUI MOLY 1 L 3063

Compatibility

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

Fits:
KAWASAKI KX 125 1987
KAWASAKI KX 125 1986
KAWASAKI KX 125 1985