Predator 420cc Recoil Starter Delete / Flywheel Cover
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A custom 3D-printable cover designed to replace the factory recoil pull-start assembly on Harbor Freight Predator 420cc
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Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- Creative Commons — Attribution — Noncommercial — NoDerivatives
I designed this custom cover to replace the bulky factory recoil pull-start assembly on the Harbor Freight Predator 420cc engine (fits the 60340 model and similar variations).
If you are running an electric-start only setup on your go-kart, mini bike, or custom power equipment project, this low-profile cover cleans up the look of the engine significantly. The open, spoked design ensures that the flywheel fan still gets plenty of necessary airflow to keep the engine cool during operation.
Mounting: It mounts directly to the existing threaded holes on the engine's metal blower housing—simply remove the old pull-start and bolt this one in its place!
Print Instructions / Settings
Because this part is bolted directly to an engine, high-temperature materials are required. Do not use PLA, as it will warp and melt from the engine heat.
Material: ASA (Highly recommended for high heat resistance, UV resistance, and outdoor durability) or ABS.
Infill: 25%
Perimeters / Walls: 4 (Crucial for added strength and surviving engine vibrations)
Orientation: Prints completely flat on the build plate.
Supports: None required.