Quote:
Originally Posted by Jorogumo4
So I adjusted the valves, they were INCREDIBLY tight to start with, I got them pretty close to 0.05mm on the exhaust and 0.04mm on the intake. However, they seem louder now? Is this normal? Should I be concerned at the amount of noise my valves are making?
Video of the motorcycle running
https://imgur.com/a/Lw9YHDY |
You probably made the same mistake so many people make when they first do the valves and set the lash to the wrong Top Dead Center.
A 4 stroke has two moments where it is at Top Dead Center. The first is the compression stroke. The second is the exhaust stroke.
You want the compression stroke.
If you set the lash on the exhaust stroke the cam is actually pushing on both valves during the overlap portion of the cam phase where the exhaust is just finishing closing and the intake is just starting to try to open. This will cause your valve lash to be way out of wack and way too wide.
Let the engine cool off again for a few hours, take the valve cover off and the spark plug out. Use the kick start lever to slowly turn the engine over until you see the intake valve (closest to the carb) open and then start to close. Now you know for sure you are on the compression stroke. Now line up the T mark for Top dead center and set your valve lash.