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Sherco Cylinder Base Gaskets - 2011 on
Part Number
RB3025
Sherco Cylinder Base Gasket.
Fits 250, 290 & 300 Shercos from 2011 onwards.
Fits 250, 290 & 300 Shercos from 2011 onwards.
The base gaskets are available in different thickness's to allow the correct squish clearance to be achieved. The thickest gasket is 0.5mm thick and is nearly always used, often with the thinner shim gaskets, stacked together.
The bikes have been known to come from the factory with up to 3 gaskets stacked together, each bike is different so you need to measure your own bike when replacing the base gasket.
We recommend you set your squish (this is the gap between the top of the piston and the cylinder head) to around
250cc 1.10mm
290cc 1.20mm
305cc 1.30mm
| Manufacturer | Sherco |
|---|---|
| Sherco Part Code | 3025, 3191, 3190, 3189 |
| Year | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| Model | 250, 290, 300 |
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