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GhostBikes.com£99.49Visit shop Airsal 02210244 - Cylinder Sport Kit 63.7Cc 44Mm For Tomos A35 50 1992-2006
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The Airsal 63.7cc Sport cylinder kit is an ideal upgrade for performance-minded riders looking to enhance power delivery and torque on their scooter or small-displacement motorcycle. Featuring an aluminium hard-coated bore for superior heat management, this kit is significantly more durable and wear-resistant than standard cast iron alternatives, though riders should be aware that it requires precise carburetor tuning or an up-rated unit to function safely and effectively.
| Model Part Number | 09311189 |
|---|---|
| Brand | Airsal |
Yes, you must either re-jet the existing carburetor or install an up-rated carburetor to provide sufficient fuel for the increased displacement.
This kit is designed for standard stroke configurations, but ensure your existing crankshaft and bearings are in good condition before installation.
Aluminium dissipates heat much faster than cast iron, which prevents the cylinder from overheating during sustained riding.
The kit includes a dedicated cylinder head that is specifically matched to the 44mm bore size for optimal compression and squish clearance.
It is recommended to follow a gentle break-in for approximately 300-500 kilometers, avoiding sustained maximum RPM until the rings are fully seated.
The mixture is likely lean; perform a spark plug chop test and increase the main jet size in your carburetor.
Ensure the cooling system is bled (if liquid-cooled) and verify that the fuel mixture is not too lean, which increases operating heat.
Proper installation is vital for the longevity of the Airsal 63.7cc Sport kit. Ensure the crankcase sealing surfaces are perfectly clean before installing the new base gasket. During assembly, apply a light coat of clean 2-stroke oil to the piston and rings to prevent dry-start scoring.
