sounds like your cam has worn into the head. this would cause the chain to be loose and a odd rumble knock while under power. Someone else before you may have ridden it with low oil, or pulled a long wheelie causing no oil to get to the cam, or sometimes people put to much sealent on the valve cover when re-bulding these engines and that blocks the oil passageway to the cam..anyone else agree/disagree? just my thoughts
Joe

 

Okay, wait a minute. What is the difference between a timing chain and a cam chain? Would someone be kind enough to answer this question. I would appreciate it.

 

Nothing, same thing.. some people call it a timming chain as it controls the timming of the cam..
Joe

 

Oh, thanks for the clear up.

 

i opened my cdi bow to look to see if the chain was stretched it was very tight, i could not hardle move it at all i don't think that is the problem. I know that oil is geting to my head because you can watch it come out of the valve adjustment when the moter is running. The cam seems to be fine it is not loose or anything. Acording to the way it sounds i still think it has something to do with my valves. Is there anything that would cause my valves to make so much noise. I am going to check with the guy that rebuilt my moter to see if there is anything to worry about or if i should tear my moter down and see what it is.

 

Did you actually look at the tensioner to see if it did what it was supposed to?ike i said before from my experience with honda motorcycles the automatic adjusters sometimes get frozen or stuck and do not adjust.On another emailboard i was on for cb 750's the curator of that board was a long time honda service manager,and he said the best way to adjust cam chains was to remove the valve cover and watch to see if the adjuster did what it was supposed to.A good way to tell if the cam chain is stretched too much is to try and pull it off the cam sprocket.Gripping it with two fingers and pulling towards the sky,if the chain will come off the sprocket even a few mllimeters it probably is stretched too much.
A clymer manual would benefit you a great deal,and would probably give a way to change the chain without tearing the whole motor apart.I think you can thread a new chain with the old one and pull it through the engine and then connect the new chain together.This is all speculatory,i would drop by my local honda shop and talk to a mechanic or get a good repair manual.Good luck.

scott

 

well guys the worst case has happened my recently rebuilt moter has a scored piston and cylinder which cause it to hit the side and make the noise. I now need a 200 honda cylinder because mine has been bored to its limit if anyone know someone who has one tell the to email me at hhartke@effingham.net