+.020in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Big Twin 1984-1999 with Evo Engine.

$457.00

KB921.020,DS-751250,CAR-M5010

1 in stock (can be backordered)

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High-quality motorcycle pistons for Yamaha bikes, durable and performance-enhancing.
+.020in. Dome Top Pistons with 10.5:1 Compression Ratio. Fits Big Twin 1984-1999 with Evo Engine.
$457.00
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What is 7+4?

Features & Benefits:-

* Bore = 3.518″

* Stroke = 4.250″

* Hypereutectic Alloy is a cast 16% silicon content material.

* Perfect for air cooled engines.

* Low thermal expansion rate = tighter piston-to-cylinder clearance.

* Complete kit includes: two pistons, rings, wrist pins and clips.

Tech Tips:-

* 10.5:1 Compression Ratio with 80cc Head Chamber Volume.

* Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufac turers Instructions.

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

MFR PART No: KB266.020
REVELRY PART No: KB266.020

Additional information

Weight 1.255 kg
Dimensions 25 × 12 × 12 cm