Description
The CP Carrillo M1082A forged piston kit is designed for Yamaha FX SHO engines that need a more substantial 0.5mm oversize bore while retaining a safe 8.6 to 1 compression ratio for boosted performance. With an 86.5mm bore, displacement rises to about 1834cc, giving a small increase in capacity along with a complete refresh of worn or damaged cylinders. This kit is a natural choice when the block requires a significant cleanup to restore round, straight bores.
Each M1082A piston is part of the CPK1082A configuration and is intended to be used with the 5551 connecting rod, 866 2250 18CP3C wrist pin, 866X063XSWL locks, and CPN 3406 ring pack. The forged design features strong ring lands, stable skirts, and a crown profile carefully shaped to handle the heat and pressure of turbo and supercharged use. The result is dependable power and durability for riders who push their machines hard.
- Fitment 2009 2013 Yamaha FX SHO 1.8L engines bored to 86.5mm 0.5mm over.
- Compression ratio 8.6 to 1, ideal for forced induction builds that see high cylinder pressures.
- Large overbore forged pistons restore integrity to heavily worn or scored cylinders.
- Paired with 5551 rod, 866 2250 18CP3C pin, 866X063XSWL locks, and CPN 3406 rings for a complete forged package.
- Focus on ring seal and skirt stability supports clean combustion, consistent compression, and long term reliability.
- Recommended for high boost FX SHO setups, upgraded superchargers, and serious performance or race applications.
For Yamaha FX SHO engines that require a half millimeter overbore and a strong forged piston built for boost, the CP Carrillo M1082A kit is a dependable choice. It lays the groundwork for powerful, long lasting performance in demanding personal watercraft use.
