Do others religiously change their stock plugs at 10,000 km (6,000 miles)? I have been - but they always look good and are performing well when I change them. I'm wondering if I should stretch replacement intervals out?
The Stelvio plugs (standard NGKs) are a bit more expensive than my other Guzzis.
Alan NZ
The Stelvio plugs (standard NGKs) are a bit more expensive than my other Guzzis.
Alan NZ