Cylinder Piston Rings Kit 56.4mm (3BN00) Fit for Yamaha TZR 125 TZR125L 1987-1992
Features: If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you to upgrade. Kit includes cylinder, piston, rings, pin, clips.(you get exactly what is pictured). Kit is for standard bore size - 56.4 mm x 50.0mm stroke, 16mm steel piston pin. This kit is excellent as a low-cost replacement for defects in the original cylinder.
Specifications: Condition: Aftermarket 100% Brand New Quantity: 1 Set Piston Material: Forged Aluminum Bore: 56.4mm Stroke: 50.0mm Displacement: 124 ccm Piston pin: 16 mm x 47 mm Piston height: 64.4mm Number of piston rings: 2 Thickness of the upper piston ring: 1 mm Thickness of the 2nd piston ring: 1 mm Type of piston ring: chrome-plated Outlet: Oval Cylinder type: 3BN00
Replacement Part Number: Cylinder: 3BN-11311-00 Piston (Std): 2YK-11631-04-35 Pin, Piston: 137-11633-00 Piston Ring Set (Std): 3XC-11610-00 Circlip: 93450-17129
Fits Models: Fit for Yamaha TZR 125 1987-1992
3BN00 cylinder have a 56.4mm bore and 50.0mm stroke, fits TZR125 before 1992 3MB00 cylinder have a 56.0mm bore and 50.7mm stroke, fits TZR125 after 1993 Although the bore size and stroke very close, still NOT sure they are interchageable or not, Carefully compare to your old parts to be sure this is the correct part for your machine.
Note: The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer. The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer Fits.
Shipping: Free Shipping Handling time: Ship within 24 hours Delivery Time: 3-7 business days
Warranty: 1. Condition: 100% Brand New 2. Warranty Period: 1 Years 3. 24-Hour Support: Provide you with timely after-sale support
Compression feels even again, and the engine pulls strongly during steep climbs. The gaskets remain dry after several heat cycles, with no visible oil smoke from the exhaust.
B
Benjamin Hayes
The bore surface arrived smooth and evenly finished, with clean edges around every port. Assembly went together without binding, and compression feels strong throughout the kick stroke.
B
Benjamin Hayes
Compression came back strong after the rebuild, and the ATV starts with much less cranking. The cylinder surface was clean and ready for assembly right out of the box.
O
Orson Whitaker
Outstanding!!!
O
Orson Whitaker
Outstanding!!!
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Compression feels even again, and the engine pulls strongly during steep climbs. The gaskets remain dry after several heat cycles, with no visible oil smoke from the exhaust.
The mounting holes aligned with the factory points, and the plate sits firmly beneath the radiator support. It clears the surrounding panels properly, with no vibration or rattling on uneven roads.
After the overhaul, drive and reverse engage promptly without the previous delay. The seals fit their channels correctly, and shift pressure remains consistent through every gear.
Commanded and actual fuel pressure now track closely during acceleration. Idle remains steady, and the engine pulls under load without surging or sudden power loss.
