ask a mechanic
If two of the 24 push rods in an engine are not moving, there may be issues with the associated lifters, rocker arms, or valves. It could be due to a lack of lubrication, a mechanical failure, or incorrect adjustments. Consult a professional mechanic to diagnose and fix the problem.
Replace them.
You don't fix this. It is part of what makes a Harley a Harley. Go buy a Honda if you don't like vibration.
duct tape
clutch basket on 89 Harley
Knockimg is not good but can be caused by a lot of differant things Lifters ,rod or main bearings, valves or push rods and engine timing can make an engine knock Some are a quick fix while others are more involved
You don't need to fix it.
You will not be able to fix air conditioner leaks by yourself. You will need to find and call a qualified technician. Use your local yellowpages book or yellowpages.com
How To Find & Fix Coolant Leaks http://www.aa1car.com/library/coolant_leaks.htm
use Jose ortiz
You may consider unistalling it and reinstalling it, if it is unclickable after restarting does not fix it.
Welding with cast iron welding rods