In essence, the replacement of camshaft and burning oil is not directly related, because the camshaft is a valve part, it can not be in direct contact with the combustion chamber, and the main reason for burning oil is caused by the decline in the sealing of the combustion chamber, so the replacement of camshaft and burning oil is not directly related.

125 motorcycle camshaft because the engine valve form is different, divided into the overhead camshaft and the lower camshaft, but no matter which form of camshaft, the replacement needs to open the cylinder block, and if the operation process is not careful enough, it will cause the phenomenon of burning oil, so the reason for this operation appears to burn oil, mainly related to the assembly method.

In the actual maintenance, if the machine is replaced by parts, in order to improve the maintenance quality, the relevant parts are usually checked, such as the wear of the cylinder block, the aging of the piston ring, etc., if these parts have exceeded the standard, then it can only be replaced at the same time, if not, the phenomenon of burning oil will appear after maintenance.

According to the description of the main topic, the current vehicle is the replacement of the camshaft and rocker arm after the burning oil, then this phenomenon is normal if it is just started, because the combustion chamber will inevitably have oil residue during the entire assembly process, so that the exhaust pipe will certainly take blue smoke when the first start.

But if this phenomenon of blue smoke has always existed, then you need to consider whether it is caused by the displacement of the piston ring, and the solution can only be reassembled, but in order to improve the assembly quality must be checked again on the piston ring, cylinder block, valve oil seal, etc., if there is excessive wear must be replaced, if not checked or not replaced, Even if the piston rings are adjusted and the engine is remounted, it will still burn oil.

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