by morini_tom » 22 Jul 2017 21:55
Looks like a pre Kokusan 500 motor to me (tall barrels and round slide carbs suggest it's not a 350)
However the side panels and 8500rpm redline suggest this perhaps started life as a 350, or at least has had these parts changed (in fact, excaliburs had white faced dials so the clocks are almost certainly not original)
If you do a tax check on dvla (the reg number is visible in one of the pics) it's been off the road since 2012 and is registered as a 1990 bike with a 500cc engine.
1990 definitely would have had a kokusan 501 or 350 motor so this may well be a bit of a bitsa.
But do you know what, fair play I say. Too many Excaliburs get broken for their engines and if somebody has at some point decided to put this one back together (and moreover, put a 500 motor in rather than an easier to get 350), then this bike deserves a nice home.
I hope somebody buys it and enjoys it for what it is.
(And before you think I've been on the vino, whilst I don't really like the way they look, I appreciate what they are, and it's just a shame how so many of them end up- I should know, both my dart's 501 engines came from excaliburs!)