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When you install a large piston in the engine, it starts burning oil because it cannot completely scrape the oil off the cylinder surface. How can this be solved? in addition, the engine scratches the surface by sticking to the cylinder piston at high rpm, so how to solve this?

The material of the original cylinder head is bad, anyway, when a performance camshaft is installed, the engine goes to high speeds and produces excessive power. When the original valve springs are not strengthened, valve float occurs. This damages not only the cylinder but also the cylinder...

Hello, I have a CG125 motorcycle. I am looking for a billet cylinder head design that can withstand high revs. I will have it made by CNC. Is there anyone who has a ready-made design or can you find it for me on the internet? like the example in the picture

And the crank gear should be 20 and the eccentric gear should be 10?

When calculating the gear as 2:1, do we calculate the up and down distance?

Merhaba arkadaşlar krank mili dişlisinin eksantrik mili dişlisine oranı nasıl hesaplanır? Üst ölü nokta ve Alt ölü noktanın bununla bir ilgisi var mı?