I have had few random posts on the forums and got an amazing response. During the process I noticed that it was not proper recording and working way. So here I go to start afresh and build the bike with proper record. I take the opportunity to thank every member for valuable input.
I found one decent looking 76 CB550K with about 33k miles on eBay. PO had noted that it does not run and had been sitting in garage for about 12-15 years. Engine still turns over and comes with Vetter complete fairings.
I spoke with him and he did not seem to know what the problem was and guessed it was some valve related problem since bike back then was ridden past due maintenance of valves adjustment. Following are photos of bike as advertised on eBay.
When I got the bike here, had several inputs from local mechanics including cam tensioner adjuster gone bad to simple tune up requiring. Nevertheless, I removed the top and found the disaster sitting there.
Camshaft collar/ ear was cracked, one the studs came loose, came out and hitting the surrounding, broke in half and was quietly sitting there to be picked up. I was happy that it had not made its way down. Looking at the top (from inside) some of the rockers are somewhat scratched and rods/ pins are bent.
Today I got a used but appears to be clean camshaft, top cover, sprocket and rockers with rods/ pins from a 1978 CB550. I am looking at replacing and have concern for doing this job since I have never done anything like this before. Questions are;
1. 1978 Camshaft, sprocket, rockers and cover are compatible with my 1976 CB550 ?
2. Since my rocker pins/ rods seem to be little bent, does it mean that I have bent/ bad valves? How do I find out, or simply replace the part and try to fire her up?
Appreciate all input.