Join Date: Aug 2008
Location: San Diego, CA
Bike: 2011 S1000RR, 97 CR500
Re: how often should you replace spark plugs?
^^^ +1, the CR9 is a hotter plug and you really dont need to run a hotter plug unless you have some internal mods that require it, plus summer is coming up and its best to try to keep things as cool as possible, even though running a colder plug wont reduce overall heat by much, but every little bit counts...
Sig courtesy of the man himself: GIjoe007