Complete cylinder head for 125–150 cc 4-stroke scooters. It closes the cylinder from above, forms the combustion chamber and houses the valve train. Complete with valves, camshaft bed and camshaft.
The head should be replaced if it is cracked, the valves are burnt, or the valve seats or the camshaft bed are damaged. A new gasket is needed before installation. After installing the head, tighten the nuts evenly in several passes and check the valve clearances.
