Description
Camshaft Naraku Sport A8, GY6 125-180cc, for China-based scooters and quads with GY6 engine. It is a tuning camshaft with longer valve timings. Valve timing determines when the intake and exhaust valves open, how long they remain open, and when they close. This in turn affects throttle response as well as torque and hp at any given rpm. There are two versions, A8 and A14 (NK500.04), the A14 will lead to even "sportier" valve timings. The A8 can be used with original and tuning heads.
Attention: is not suitable for original Kymco cylinder heads!
- A8 Sport version
- longer valve timings for improved performance
- for Kymco / GY6 125/150cc engines
Camshaft and valve timing
The camshaft and valve timing are important components of 4-stroke engines. The camshafts allow the valves to open (i.e., to draw in the mixture and expel the gases) and are driven by the timing chain, which is in turn connected to the crankshaft.
Incorrect timing adjustment interferes with valve opening and can severely affect engine performance and reliability. Therefore, we recommend to intervene only with appropriate technical know-how.
Maintenance and tuning
Maintenance and care of the elements located in the cylinder head, including valve timing, is very important. Even though the timing chain generally has a fairly long life, it is still necessary to regularly check chain wear and wear of all related elements.
Camshafts must always be in perfect condition. You can also use tuning camshafts; the shape of the cams is revised to increase the valve opening times and thus provide more power.
| Camshaft Naraku Sport A8, GY6 125-180cc | |
|---|---|
| Article no. | NK500.03 |
| EAN | 4250362410979 |
| Weight | 0,33 kg |
| Brand | Naraku |
| Product type | Camshaft & Timing |
| Homologation | Yes |
| Stroke | Original |
| Conrod length | Standard |