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2-85 2 Assembling Engine (1100 cc Z1) NOTE: Arctic Cat recommends that new gaskets, NOTE: For assembling purposes, it is advisable 1. Install one piston pin circlip into one of the pis- tons making sure the open end is directed either up or down. Place the connecting rod in position making sure the identification number on the rod cap (A) is aligned with the intake side of the piston (B). ZJ070A 2. Install the piston pin and piston pin circlip mak- ing sure the open end is directed either up or down. Repeat for the other piston/connecting rod assembly. 3. To install the piston rings, use the following pro- cedure. A. Install a thin oil ring, oil ring expander, and thin oil ring in the bottom groove of the pis- ton. Stagger the end gaps of the upper and lower thin oil rings until they are on directly opposite sides of the piston. 741-619A B. Install the #2 compression ring so the letters on the top surface of the ring face the dome of the piston. C. Install the #1 compression L-ring into the top groove with the face of the ring directed upward. D. Rotate the rings until the ring end gaps are no less than 90° from one another. NOTE: Prior to installing the pistons, make sure 4. Lubricate each piston and cylinder with engine oil; then with the dots on the top of the pistons directed towards the exhaust side of the engine, install the piston assemblies into the cylinder. ZJ071A 5. Using Ring Compressor (p/n 0644-378) and a soft hammer/hammer handle, carefully drive each piston into the cylinder until the top of the piston is flush with the engine case. ZJ072 ! CAUTION Incorrect installation of the piston rings will result in |