Agree that staying a bit longer with the 400 maybe sensible to see what/if happens on revised 650.Data wrote:On the move to the 650. Maybe wait until you see the new model that is reportedly coming out next year. They may have solved the very expensive transmission failures that the 650 can suffer from. I personally know someone who has had the transmission fail at 42k miles. Total cost to fix was in excess of £3,000! He actually sold the bike to the dealer in it's failed state for next to nothing and bought a new 400z abs. We had a meet a few weeks ago and he says he is very happy with it having had it for 4 months and 3k miles at that time.
But I must correct you on the transmission failure, Suzuki already redesigned the 650 (K5 onwards) to modify the Primary Spline and correct the known design issue. My K3 failed at under 30k miles, last year, rather annoyingly 9 months after the 7 year duration that Trading Standards deem as a product lifetime, so stopping any attempt to claim against Suzuki.
There have been a few (very very small numbers) who've seen belt failures, but these are usually 50-100k miles, the best source of knowledge on this is BUSA forum and associated Le Dude knowledge base.