Minarelli 41.4mm Stuffer Crankshaft
ITEM# TT-16382
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Description
41.4mm Stuffer Crankshaft for Minarelli 50cc Engines
This crankshaft is built for Minarelli 50cc, 2-stroke engines and uses a 10mm wrist pin. Its 41.4mm stroke is 2.2mm longer than standard, which raises primary compression and suits engines that run at higher RPMs. Along with other Minarelli 50cc / Yamaha jog scooter parts, it can help the engine breathe better and burn fuel more efficiently.
Higher Primary Compression
Extra plastic padding on the crankshaft increases primary compression, which makes it a fit for racing and performance builds. It measures 9 ½ inches overall, so it is designed to replace your current crankshaft directly. The 17 splines hold it securely in the engine.
Fitting Details
Anyone comfortable with engine work should be able to install this crankshaft without much trouble. Both the flywheel side and the drive end use an M10x1.25 thread, so standard hardware will work with it. The piston pin hole has a 14mm inner diameter, which lines up with the piston assembly.
Specifications
- Stroke: 41.4mm
- Overall Length: 9 ½ inches
- Splines: 17
- Flywheel Thread Size: M10x1.25
- Drive End Thread Size: M10x1.25
- Inner Diameter of Piston Pin Hole: 14mm
- Fits: Minarelli 50cc 2-stroke engines with a 10mm wrist pin (41.4mm stroke Stuffer crankshaft)
Compatibility
Fits:
- Minarelli 50cc 2-stroke engines with a 10mm wrist pin (40QMB 50cc 2-stroke listed)
How to choose: Before ordering, confirm that your engine has a 10mm wrist pin, a 14mm piston pin hole, and an M10x1.25 flywheel thread.
Shop more: Minarelli 50cc / Yamaha Jog Parts · Scooter Engines & Engine Parts · Scooter Parts
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