61MM 170-180CC Big Bore Piston Cylinder Kit For GY6 125cc 150cc Scooter ATV & Quad
£27.09
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Description
About this item
- Specification Diameter of the Kit(mm): 61; Diameter of Piston Pin(mm): 15; Diaplacement: 170CC~180CC; Outer Diamter of Cylinder Skirt(mm): 65; Middle Height of Cylinder(mm): 69; Total Height of Cylinder(mm): 90; Total Height of Piston(mm) : 38.5; Compression Height of Piston(mm): 20
- Premium Material This cylinder kit is made of high quality metal, can replace the original correctly, 100% new high quality, durable.
- For Displacement Include Jog 50,90,100, GY6 50,60,70,80,100,125,150,CN/CF 250,YP VOG 250 260 300
- Package Includes 1*Big Bore Cylinder Kit (inclued Camshaft and Cylinder Head, Gaskets)
- NOTE Instruction not included, professional installation is always recommended.
Reviews (1)
1 review for 61MM 170-180CC Big Bore Piston Cylinder Kit For GY6 125cc 150cc Scooter ATV & Quad
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Nelle Cronin –
This is non egr head, what I found first ring is silver sk1 marking up. .011 ring gap for first ring, .010 for second ring. Install oil ring spring pressing together, “no” overlap. I used 1000 grit sand paper and a feeler gauge to file the ring gap. I clearanced the crankcase with a dremel for the larger sleeve. “Thoroughly clean the case after dremel work.” I was almost done with the upgrade until I found out the headgasket was way to big, the bore is 62mm ID on the gasket. The gasket kit says GY6 150 61mm. Looks like a B case large stud distance head gasket. Odd the lower cylinder to crank case seal was perfect. Probably a manufacturer mix up. Other ring gap by math: 2.4 inches of bore x .005 second ring = .012 and 2.4 x .004 top ring .0096. Oil rings are the same as top ring. Variator seal is for a long case.