21-12-12, 01:13 AM
(21-12-12, 12:58 AM)ChristoT link Wrote: Looking at posts, all the Fazers have vibrations at around 6,000 revs, and I've noticed some at 3,000 / 3,500 too. Not that I'm too concerned.
When I get back to Uni in January, I intend to do some tests on my engine. I suspect that 6,000 revs is possibly the 3rd harmonic of the engine's natural frequency, which is what generates the juddering. A friend suggested it could also be standing waves being formed in the carbs. Either way, I'll find out in Jan!
my exhaust used to resonate at around 6000rpm and it made the exhaust get way louder. i took the down pipes off and the can and then refitted them and it stopped the problem