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FJR Motorcycle Forums
Technical & Mechanical Problems
Bent Valves or No?
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<blockquote data-quote="RaYzerman19" data-source="post: 1294682" data-attributes="member: 18388"><p>4. Ignore #4 cam lobes, concentrate on #1 only..... everything else will fall into place. If #1 at TDC and #1 cams splayed out per FSM, #4 lobes might be pointing inboard, but who cares. As long as #1 is TDC, lobes splayed correctly, timing marks on end of cam sprockets lined up with edge of cylinder head, valve timing will be correct.</p><p></p><p>5. Using the lobe holes (per Fred's pic) is a way to indicate you are there. If you are off a tad, you could be one tooth out, and to me, the only way to prevent that or verify that is to check the end of the cam sprockets...... it is hard to gunsight, but sit on a stool with your head still and a strong flashlight, I don't find it too awful to do. It helps to highlight the marks with white grease pencil or a dab of paint.</p><p></p><p>6. With everything in place, there should be no slack along the forward part of the cam chain... Recheck everything once you have released the CCT, and before you rotate the engine (cam timing marks, crank TDC timing, backup verification of lobe holes, etc.).</p><p></p><p>Valve check instruction will help you...... see pic.</p><p></p><p><img src="https://i1232.photobucket.com/albums/ff366/RaYzerman/FJR%20Valves%201%20TDC_zpsutsyengh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="RaYzerman19, post: 1294682, member: 18388"] 4. Ignore #4 cam lobes, concentrate on #1 only..... everything else will fall into place. If #1 at TDC and #1 cams splayed out per FSM, #4 lobes might be pointing inboard, but who cares. As long as #1 is TDC, lobes splayed correctly, timing marks on end of cam sprockets lined up with edge of cylinder head, valve timing will be correct. 5. Using the lobe holes (per Fred's pic) is a way to indicate you are there. If you are off a tad, you could be one tooth out, and to me, the only way to prevent that or verify that is to check the end of the cam sprockets...... it is hard to gunsight, but sit on a stool with your head still and a strong flashlight, I don't find it too awful to do. It helps to highlight the marks with white grease pencil or a dab of paint. 6. With everything in place, there should be no slack along the forward part of the cam chain... Recheck everything once you have released the CCT, and before you rotate the engine (cam timing marks, crank TDC timing, backup verification of lobe holes, etc.). Valve check instruction will help you...... see pic. [IMG]https://i1232.photobucket.com/albums/ff366/RaYzerman/FJR%20Valves%201%20TDC_zpsutsyengh.jpg[/IMG] [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Bent Valves or No?
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