Just throwing out a question about decarboning to the maintenance gurus for feedback. I searched for a while but am not convinced what I should do, if anything (but of course I WANT to do something
).I have an '04 R1150R with 23,000 miles on it. The bulk of my trips are city driving, and I don't often take the rpms above 4000 (which I suspect I may have to modify!). It runs well, valves are well adjusted/matched, TB's synced, there is a little shaking at idle, which is suspect is normal. I use 20W-50 mobil v-twin oil, chevron and 76 91 octane fuel.
For giggles I pulled off the spark plugs to have a look at the tops of the pistons, and it clearly has grainy carbon deposits on both. A bit more oily-looking on the left piston (normal, and I use the side stand often). Plugs look good - lite gray.
I've researched the issue, and I understand its normal, especially since I don't wind it up much. But I don't like black crap on my pistons
.I've heard of few number of remedies, from simply adding seafoam to the gas, to getting it out on the freeway and winding it 5-7k rpms, to spraying water down the intake manifold, to sucking 2 oz of seafoam through the vacuum port on the throttle bodies and going for a high-rpm 50 mile blast.
What would you gearheads do? Thanks!!
