Essential sealing component to the reliability of the Italian brand's 125cc Competition Motorizations, this gearbox O-ring is a piece of origin TM Kart. Very versatile, it is used repeatedly on the different blocks of the range: it is found precisely at the mark View 40 on the clutch of the engine R3, as well as the reference View 40 on the transmission of the engine R2.

Made in a hydrocarbon resistant material and high temperatures, it guarantees a hermetic maintenance and effectively prevents oil leaks under the intensive stress of the track.

Main features:

• Product: O-ring sealing

• Application: Pinion / Transmission / Clutch Output

• Exploded marks: View 40 (Engine Clutch R3) and View 40 (Engine Transmission R2)

• Motor compatibility: Motors TM Kart R2, R3 (and multiple uses on housings / transmissions)

• Origin: Official piece TM RACING

• Availability: In stock on Magickart.eu

The history and usefulness of the product (track side)

In kart kart, the sprocket and transmission output area undergoes permanent mechanical and thermal loads. A tired or crushed O-ring can quickly let the oil escape, resulting in splashing on the frame and a potential drop in the lubrication level. The use of an original O-ring with the rigorous dimensions guarantees a flawless seal, after turn.

The mounting tuto (step by step)

To replace your O-ring in the rules of the art:

• Disassembly: Remove the pinion or the item concerned to access the Used O-ring groove (spotted 40 on your technical schemes).

• Extraction: Gently remove the old seal by keeping not to scratch metal worn with a sharp tool.

• Cleaning: Degrease and thoroughly clean the throat to remove any trace of impurity or oil residue.

• Setting up: Lubricate the new O-ring slightly with a little clean oil, then position it flat in its throat by avoiding all torsion.

Michel's Tip (Paddock Expert Council)

"Never climb a dry O-ring or if it has any micro-crack. A small touch of clean oil just before sliding it into its throat will prevent it from pinching during assembly and guarantee an optimal life. For a few cents, replace it systematically with each intervention on transmission! "

FAQ SEO (Frequently Asked Questions)

• Q: Where is this attached on the exploded motors?

  • A: It is listed precisely at the mark View 40 on the scheme of the engine clutch R3, and also at the mark View 40 on the diagram of the transmission of the engine R2.

• Q: Is it a part of a builder origin?

  • A: Yes, it is an official TM Racing piece, guaranteeing the quality of the elastomeric mixture, the temperature resistance and the perfect dimensional tolerance.

• Q: Is it recommended to reuse a former O-ring?

  • A: No, an O-ring is deformed and flattens under the effect of tightening and heat. As a safety measure and to avoid oil leaks, it must always be replaced by a new during disassembly.