![]() Make sure that the piston pin clips are seated securely. ![]() Install new piston pin clips into the grooves in the piston pin hole. Install the piston with the ‘‘IN’’ mark toward the intake side and insert the piston pin through the piston and connecting rod. Apply engine oil to the piston pin hole and connecting rod inner surface. Apply molybdenum oil solution to the piston pin outer surface. Place a clean shop towel over the crankcase to prevent the clip from falling into the crankcase. Be careful not to damage the piston and rings. Stagger the piston ring end gaps 120° degrees apart from each other. To install the oil ring, install the spacer first, then install the side rails. NOTE: Do not confuse the top and second rings. After installation, measure the stud height from the cylinder surface.Ĭarefully install the piston rings into the piston ring grooves with the markings facing up. Remove the stud bolts from the cylinder and install new stud bolts in their proper positions and tighten them. Calculate the connecting rod-to-piston pin clearance. Measure the connecting rod small end I.D. at three points and calculate the piston-to-piston pin clearance. Measure piston pin hole and take the maximum reading to determine the I.D. measurement and calculate the piston-to- cylinder clearance. Compare this measurement against the maximum cylinder I.D. 90° to the piston pin hole and at point 15 mm (0.6 in) from bottom of the piston skirt. Insert each piston ring into the bottom of the cylinder squarely using the piston. Push the ring until the outer surface of the piston ring is nearly flush with the piston and measure the ring-to-ring groove clearance. The rings should be able to move in their grooves without catching. Inspect the piston rings for movement by rotating the rings. Check the top of the cylinder for warpage with a straight edge and feeler gauge across the studs and bolt holes. The cylinder must be rebored so that the clearance for an oversize piston is (see reference links) mm (see reference links). The four oversize pistons are available from 0.25 mm piston to 1.0 mm piston in intervals of 0.25 mm (0.010 in). The cylinder must be rebored and an oversize piston fitted if the service limits are exceeded. Take the maximum reading to determine the taper and out-of-round. Calculate the cylinder taper and out-of-round at three levels in an X and Y axis. Refer to your manual download for measurement of the piston O. SERVICE LIMIT: Always refer to the reference links above for service wear limits.Ĭalculate the cylinder-to-piston clearance. Take the maximum reading to determine the cylinder wear (see reference download for service limits for exact model and year). Inspect the cylinder bore for scratch(s) or wear. Never use a wire brush it will scratch the groove. Clean carbon deposits from the ring grooves with a ring that will be discarded. Spread each piston ring and remove it by lifting up at a point opposite the gap. ![]() ![]() ![]() Push the piston pin out of the piston and connecting rod, and remove the piston. Place a clean shop towel over the crankcase to prevent the clip from falling into the crankcase then remove the piston pin clips with pliers. If you have questions about work - please do not hesitate to ask our manager by mail yumbo-jp.Remove the cylinder head (see diagrams in reference download) and remove the following:ĭo not strike the cylinder too hard and do not damage the mating surface with a screwdriver. You pay, and we will send the package to you with a tracking number. It sometimes happens that a spare part has several parts numbers - we ask you to check the correctness of the number selection or check with the manager of our company.Īverage processing time in Japan is about 1 week after payment.Īfter the spare parts have arrived at our warehouse, you will be able to create a package (specify the data for shipment, choose a delivery method) - we will pack and inform the delivery cost.If the spare part does not have a price and costs - you can send a request to us and after receiving a response from the manufacturer we will let you know by e-mail.This catalog contains parts for мотоцикла HONDA CR125R A 2001 year.įind the necessary group, for example: CRANKSHAFT for HONDA CR125R A 2001 year.ħ / 94601-15000 / CLIP, PISTON PIN (15MM) / ![]()
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