GOOFIT 57 4Mm Cylinder Piston Stroke Review

Didn't come with all gaskets but which gasket came was quite bent so I'm not even sure if they tighten. Wait to install to see if there's still a problem, I'm not happy

Check the outside diameter of the cylinder before purchasing. I made a mistake by not doing this. The original part I have has an outer diameter of 60.2 mm, the part I sent has a diameter of 62.1 mm. It doesn't fit and I don't have the ability to mill the part. In addition, the cylinder head gasket is missing.

This product works great with the gy6 motor! I have a stock 150cc engine and this kit bolts right onto my kart and gives it extra power! No crankcase drilling or valve adjustment was required, everything was high quality and at an affordable price! You can't beat that!

Smoked away but just installed, will have to see how long it lasts. I had to shave off the protruding part of the circle a bit to make it fit into the whole, for some reason it was wider than the old one, but I sharpened it a bit and it all worked.

the cylinder liner that came with the block was too big to fit my block so i couldn't use it so i did installed a new piston and rings and gaskets in my old cylinder and put it back together, looks like i wasted too much on the cylinder

This set does not come with instructions or instructions, just parts. In my opinion, the rings are too big for the play in the cylinder. I measured and they were about 0.015 inside the cylinder gap (check before putting them on the piston). As a result, the engine smokes a little after a few minutes of operation. Other websites have stated that the rings should have no more than 0.008 inch play in the cylinder. And yes, I made sure to change the position of the gap on different rings. I even…