125cc 4-Stroke Engine with 78mm Cylinder

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Engines and Components› Engines, Blocks and Components

Lifan

125cc 4-Stroke Engine with 78mm Cylinder

Name: 125cc 4-Stroke Engine with 78mm Cylinder
Brand: Lifan
SKU: EN12-78MM

$513.13

SKU: EN12-78MM

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Overview

The Lifan EN12-78MM is a 125cc, 4-stroke, single-cylinder engine designed for pit bikes and small motorcycles. It features air cooling, a 2-valve configuration, and a 78mm tall cylinder. This engine includes a 4-speed semi-automatic transmission with a bottom-neutral, four-up shift pattern and a kick-start option.

Show original supplier description

The Lifan EN12-78MM engine is a 125cc, 4-stroke power plant designed for pit bikes and small motorcycles, offering an upgrade path for models like the Honda XR50/70 and CRF50/70. This air-cooled, single-cylinder engine features a 2-valve, 78mm tall cylinder design, providing a displacement of 124cc. Equipped with a 4-speed semi-automatic transmission, the EN12-78MM operates with a bottom-neutral, four-up shift pattern (N-1-2-3-4) and includes both kick-start and electric start capabilities. It utilizes a CDI ignition system and comes with a front drive sprocket that accepts a larger 20mm x 17mm shaft. The recommended fuel is unleaded gasoline with a minimum of 91 octane, and the engine oil specification is 10W-40 petroleum-based, non-synthetic. When upgrading certain Honda models such as the XR50/70 or CRF50/70, aftermarket footpeg mounts and tank spacers may be required. For optimal performance, the use of an aftermarket exhaust system is also suggested. These related components are available from TBoltUSA.com.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

Brand	Lifan
Part Number	EN12-78MM
Category	Engines and Components

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