Description
Valve rocker arm intake - original spare part Minarelli 4T
Genuine spare part from Yamaha. Yamaha also offers all spare parts for the newer 50cc scooters with Minarelli 4-stroke engine. The parts are identical to the original components and can therefore be installed without any modifications.
The components of a valve train must be checked regularly so that worn parts can be replaced quickly if necessary.
Yamaha OEM part number: 3B3E21510300
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.
| Rocker Arm intake valve Minarelli 4-stroke | |
|---|---|
| Article no. | OE-MIN3B3E21510300 |
| Weight | 0,04 kg |
| Brand | Yamaha |
| Product type | Camshaft & Timing |
