🛵 80cc Motorized Bicycle Bike Motor Sthus Cylinder & Piston & Pin Clips Wrist & Gasket Set - Perfect Fit Review

This product was terrible. Exhaust holes are not drilled or tapped. The burrs on the intake and exhaust ports kept the piston from moving until I archived them. I put a star because I had one too and got the piston and gasket. Now I'm back on the road but it was more work than it should have been and I didn't have time to wait for a refund or replacement.

Ok, arrived very early, excellent condition, great product, good cylinder and piston replacement. If you receive this and are using any type of manifold larger than 32mm, YOU MUST BUY ONE! And along with one, if you don't already have one, you'll also need a carburetor that fits this manifold. Note I also bought a new head and 10mm spark plugs are needed so I was confused too, always check the dimensions!

I bought this to replace the jug on my engine because the piston bearings were failing and the pin was damaged. The engine still ran great and had plenty of power. 4 years old 66cc. The pitcher had a horizontal scratch from a rocking plunger. However. I replaced it with this one. New piston and rings. The engine has lost power. I used to have fast acceleration even uphill. With that he turned it into a 49cc. I will return the original jug and get my power back. Even with a full jug, I had more…

Piston was better quality than the one I bought from another seller, pins to keep the rings from turning diametrically correct for the rings, only noticed that the arrow that was supposed to show the piston installation direction was pointing the wrong way: the butt gaps should be on the intake side. There were two very small spots on the cylinder that the honing on the nickel plate didn't pick up, but otherwise the finish was very good. And he came with everything I need. I will keep buying…

I mean I gave the seller a slightly rude review of this cylinder because to be honest it looked damn tough. However, I cleaned up the port a bit, and while the cylinder liner itself looked pretty weird with crazy patterns on the liner, I was like what the heck, let's just throw this thing in and see if it works. Well maybe my old pitcher was poppier than I thought but this replacement started right up and seems to have at least 50% more oompf than before the rebuild according to the old butt…

Product received in good condition. Luckily. This kit has NOT been packaged securely enough to avoid damage. The cylinder was NOT plated so I had to do A LOT of sanding and polishing. There were sand pits on the head mating surface and I had to machine them to an acceptable limit BUT I had to use (2) head gaskets to ensure proper chamber to piston clearance. The intake and exhaust ports had to be ported. I had to process both because of the "sand pits" and the mating of the planes. The new…