MOTOX888 said:
( I did not re-shim the valves ) What could be the problem?
MOTO.
Did the guy at the Honda shop just look at the head or did he actually measure for the proper clearance and take it apart and inspect the valves?
If the valves were tight, it will be hard to start. The clearance could have been tight on the stock cam. If the Hot Cam uses the same base circle as the stock cam then changing cams will not make a difference. Checking the valve clearance on the new thumpers is very important.
Also, it is very easy to get the cam timing one tooth off. When you do this it will act like it is going to start, but it won't.
Double check TDC by placing a rod through the spark plug hole and feeling the top of the piston. Rock the crank back and forth until the piston is on TDC. Then, check your timing mark. The best way to do this is to use a dial indicator and a degree wheel, but you can get pretty close by feeling the top of the piston.
One last thing. Make sure the shims are properly seated under the spring cups.
Ok, one more last thing. A good way to check that your valves are seating is when you have the head off, pour gasoline in the intake and exhaust ports one at a time. If the valves are not seating the gas will leak past the valves.
Just my $ .02