When adding new shims to your FZR600's valves, you'll need to follow a similar process as when shimming existing valves. However, there are a few additional steps involved. Here's a step-by-step guide to help you get started:
Gather the necessary tools: You'll need a set of feeler gauges, a valve shim removal tool or magnet, a micrometer, and a valve shim kit containing various sizes of shims.
Remove the camshafts: Start by removing the camshafts to access the valves. This typically involves removing the camshaft caps, cam chain tensioner, and any other components necessary to lift the camshafts out of the head.
Identify the valve clearances: Once the camshafts are removed, identify the valves for which you need to add new shims. Measure the valve clearances using a feeler gauge and note down the measurements.
Calculate the required shim size: To determine the appropriate shim size, you'll need to measure the existing shim thickness and the valve clearance. Subtract the desired valve clearance from the measured clearance to obtain the amount by which you need to change the shim thickness.
Select new shims: Refer to the shim kit and find shims with the required thickness to achieve the desired clearance. It's advisable to select shims slightly thicker than the calculated value to allow for fine-tuning later.
Remove old shims (if applicable): If there are existing shims in the valve, use a shim removal tool or a magnet to carefully lift them out. Be cautious not to damage the valve or the surrounding components.
Install new shims: Place the selected shims onto the valve stem, ensuring they are centered. Use a small amount of oil to lubricate the shim and valve contact surfaces.
Recheck valve clearance: With the new shim installed, recheck the valve clearance using a feeler gauge. Confirm that the clearance is within the specified range.
Reinstall the camshafts: Once you have finished shimming the valves, carefully reinstall the camshafts, ensuring proper alignment and timing as per the manufacturer's instructions. Reinstall any components you removed during the disassembly process.
Recheck valve clearances and adjust if necessary: After reinstalling the camshafts, double-check the valve clearances. If any valve clearances are still outside the specified range, you may need to repeat the process, selecting different shims as needed.
It's important to note that this process can be intricate and requires precision. If you're unfamiliar with valve shimming or uncomfortable performing this task, it's advisable to consult a professional mechanic or refer to a qualified technician to ensure the job is done correctly.