GY6 Pivot, Cam Chain Tensioner (125-150cc)

GY6 Cam Chain Tensioner for 125cc to 150cc Engines

This cam chain tensioner pivot is made for GY6 engines between 125cc and 150cc. It keeps the camshaft chain at the correct tension, which matters for how the engine performs. Among GY6 scooter parts, it plays a role in keeping engine timing steady and helps guard against damage. It is a direct swap for the original piece, so it suits anyone handling routine maintenance.

Construction and Functionality

The pivot guides the camshaft chain and holds the tension it needs to do its job. With that in place, the engine tends to run smoothly and efficiently. The original component can wear down or lose effectiveness with use, and that can lead to performance problems. Checking this part now and then can help you avoid more expensive repairs later.

When to Replace

Consider swapping the cam chain tensioner pivot if the engine starts making unusual sounds or if the part shows signs of wear. A tensioner that is not working properly can throw off timing, which may cause serious engine damage. Keeping this part in good shape helps your GY6 engine last longer.

Specifications

• Overall Length: 28mm
• Thread Size: M6x1.00
• Fits: GY6 150cc (157QMJ) engine; also 125-150cc GY6 engines with QM or FM engine codes

Fitment

Fits:

• GY6 150cc (157QMJ)
• GY6 125cc and 150cc engines with QMJ, QMK, QMI or FM engine codes (157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A)

How to choose: Check the engine code stamped on the engine case. It should contain QM or FM, for example 157QMJ or 161QMK.

Where it goes: part #5 on the cam chain and tensioner diagram for the GY6 150cc (157QMJ).

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