Variator Locking Tool Chinese Engine 139QMB 50 4-Stroke Naraku

Tool for locking the variator on Chinese 139QMB 50 4-Stroke engines from the manufacturer Naraku.

If you have ever struggled with a Chinese 4-Stroke engine trying to loosen the variator or ignition nut, you know exactly what we mean. This locking tool from Naraku is the ultimate solution to end that struggle. No more improvising with impact guns that can damage the crankshaft or piston locks that mark the cylinder head.

Its design is simple but incredibly effective. It screws directly onto the crankcase and securely locks the starter ring gear in place. Once fixed, you can loosen or tighten the crankshaft nut (on both the variator and ignition sides) with a simple wrench, applying the exact torque without anything moving. It’s the tool that saves you time, nerves, and money on potential breakages.

• Application: All 50cc 4-Stroke scooter engines of Chinese manufacture (codes 139QMB and 139QMA), whether 2 or 4 valves.
• Function: Lock the crankshaft to remove and install the variator or the ignition.
• Ideal for: Maintenance (roller or belt replacement).
• Key advantage: A true "Must-Have". The essential tool if you own or work with Chinese scooters.

Compatible models

SYM (SANYANG)

• Allo 50 4-Stroke AC 2010-2017
• Fiddle II 50 4-Stroke AC 2007-2008
• Orbit | 50 4-Stroke AC 2006-2009

SYM (SANVANA)

• Svmolv 50 4-Stroke AC. 2010-2017