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| View All > Go Kart Parts > 150cc Engine Parts & Components |
There are two 150cc piston sizes, 57mm and 57.4. Your piston, rings, and cylinder must all match one size (as a set) in order to fit properly. The 57mm bore is known to be used in go karts with Howhit engines.
Known 57mm engines: Yerf Dog GX150 (w/ HOWHIT), Baja Dune 150, Crossfire 150.
Known 57.4mm engines: Yerf Dog CUV.
If your kart is not listed here, please check the bore size of your cylinder with the original manufacturer.
Howhit bore: 57.0mm (147.5 CC)
Standard bore: 57.4mm (149.8 CC)
If your piston size is 57mm, the larger 57.4 components can be used as a set (piston, rings, & cylinder). This will bump the engine displacement up 2.3CC's.
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Downloadable Information:
- Howhit Engine Diagram w/ Part Numbers [pdf]
- How To Do a GY6 Top end Rebuild [pdf] |
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