valve tapping ?

chkster

chkster

Joined
Oct 4, 2020
Messages
5
Age
66
Location
Victorville
Bike
2002 st 1100
I am new st 1100 owner here. just bought a 2002 1100, 33000 ish miles from a private owner. I drove it around for a while for the first time a week after I bought it, after riding it and letting it sit... I came bk out to move it, I restarted it and there was a noticeable tapping sound a singular continuous tapping sound for about ten seconds and it stopped. I restarted the bike and it did it again. I had previously started the motor every day for a week and this noise did not occur. thoughts?

TY in advance Charles
 
Did the previous owner own it from new? Did he keep any service records?

Chances are with that low mileage, the valve clearances may never have been checked. If you are handy with some relatively easy maintenance - not many bikes nowadays are as easy to work on as a ST1100 - get yourself the Honda Service Manual and check those clearances. A valve too loose isn't dangerous, but one too tight, which won't make any noise, can be disastrous.

A loose tapping valve won't stop tapping though, so your problem may lie elsewhere. Does the noise increase in speed if you rev the engine slightly?
 
I had a leaky exhaust gasket that would seal after a few seconds of starting. Sounded like valves tapping....... Could see the soot marks when I changed the headers....
 
Roger. said:
I had a leaky exhaust gasket that would seal after a few seconds of starting. Sounded like valves tapping....... Could see the soot marks when I changed the headers....
Click to expand...
+1... exhaust leaks can sound exactly like a valve tapping.
 
chkster said:
I am new st 1100 owner here. just bought a 2002 1100, 33000 ish miles from a private owner. I drove it around for a while for the first time a week after I bought it, after riding it and letting it sit... I came bk out to move it, I restarted it and there was a noticeable tapping sound a singular continuous tapping sound for about ten seconds and it stopped. I restarted the bike and it did it again. I had previously started the motor every day for a week and this noise did not occur. thoughts?

TY in advance Charles
Click to expand...
Sounds like an exhaust gasket leak to me.
 
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