Jeff Burke wrote:
On 11 Aug 2006 15:17:01 -0700, "basskisser" wrote:
Again, there's been many many documented tests where they've used
various products much like, if not Seafoam, to clean carbon deposits.
Now I'm not saying that if the top of a piston has very minor carbon,
that seafoam won't make it look clean, but if you've got carbon enough
so that your compression has gone up, and results in pinging without
higher octane fuel, then it ain't going to do much for you.

Check with the Vulcan riders at vroc.org. The Vulcan 800 is known to build up
carbon from using high octane fuel or from lugging it too much. Seafoam does the
trick on the 800, it sure worked on mine. I don't think the carbon problem is
causing any boost in compression, I think the "spark knock" that some have cured
with Seafoam was caused by carbon making hot spots that caused pre-ignition.
Some bike got so bad that the engine actually had a knock in the engine that
sounded like piston slap or bad bearings, turned out to be real bad carbon build
up that actually hit the pistons. Those bikes had to have their engines torn
down. This could have been avoided if they used Seafoam, but not cured once it
went that far.

Again, many many studies have shown otherwise.