I was curious as to what Fuel everyone is running. I was initially using Premium 93 octane. Is it my imagination when I use regular 87 octane there is not as much exhaust residue on my pipes or rear wheel? I can't tell any difference in performance in the two. I know the book calls for 93. Will long term use of 87 cause any damage? If we are able to add more air to the mix would that help the residue problem?
in italy we have two grades, that j still have to check in octane.
super(normal) and super octane.(very rare to find, it seems that only shell has.)
j found some difference.
normaly j fill with no brand name(normal) and engine is working properly.
j had bad experience with brand name normal on the highway. the engine was not working for some time starting at stop the engine was trying to turn off. j filled a tank of shell premium and the engine cleaned.
j am starting to use STP nero per injectors as recommended from other walk riders, j will post results as soon as j get it as not easy to find.
The use of low octane fuels in engines designed for higher octane can cause pre-ignition (sometimes called pinging or knocking) on the compression stroke resulting in a loss of power and possible damage to the piston heads. I only use the specified octane (91 or higher) in my bike.