Quote:
Originally Posted by clanky
2 months go by and mine is broken in right he just did his first oil change. We were riding around doing a few wheelies and stoppies and his bike makes some god awful noises then just stops on him. Take it to the dealership and he had a whole lot problems
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This is a classic case of conclusion jumping.
Your buddy may have over-revved the motor, or who knows what - there are plenty of bikes redlined out of the dealership and put down great dyno numbers. It's a myth that "problems take time to surface" - no, the motor makes good compression or it doesn't, I've seen "hard break-in" S1000RRs with 70,000 miles on the clock still making great power numbers.
I used to think synthetic oil should be avoided for break-in but that's also a myth put to rest right on Mobil's website. It's all in the technique. babying the motor "because that's what the book says" is a recipe for lower compression. The manufacturers have to be conservative in their guidelines for liability reasons.