GR002 Posted December 17, 2016 Share Posted December 17, 2016 Can some one tell me how to choose the thickness of cylinder base gasket for my Moster classic? You get supplied with a few gaskets of different thicknesses Quote Link to comment Share on other sites More sharing options...
cas_whitmore Posted December 17, 2016 Share Posted December 17, 2016 To set a desired compression maybe. Cas . Quote Link to comment Share on other sites More sharing options...
GR002 Posted December 17, 2016 Author Share Posted December 17, 2016 That's exactly why I am asking this question as I have 2 Moster classics and they seem to have different compression ratios Quote Link to comment Share on other sites More sharing options...
Hann__ Posted December 17, 2016 Share Posted December 17, 2016 (edited) It is indeed to get the correct compression ratio (squish clearance). You assemble the motor `dry` (cylinder and head fitted but without a base gasket), torque the head bolts to the correct spec and then set the `squish clearance` by placing a length of plumbers solder (minimum diameter 2mm, or use smaller diameter twisted together) down the spark plug hole placing the end so that it is at the edge of the cylinder (where the squish band is) and pull the engine over a few times. This will squash the solder. Measure it. Work out which of the base gaskets in the kit will provide a squish clearance of 1.3 to 1.5mm. Take cylinder off fit that bas e gasket, torque head and check again. Edited December 17, 2016 by Hann__ 1 Quote Link to comment Share on other sites More sharing options...
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